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2018
- ... These lists are being updated ... for more recent news check my main page or CV or contact me. Thanks!
- B. Alipour, L. Tonetto, R. Ketabi, A. Ding, J. Ott, A. Helmy,
"Flutes
vs. Cellos: Analyzing Mobility-Traffic Correlations in Large WLAN Traces",
IEEE INFOCOM, April 2018. [Best Presentation in session] [Acceptance rate: 19%].
2017
- M. Al-Qathrady, A. Helmy, K. Almuzaini, "Infection Tracing in Smart Hospitals",
Book chapter 16 in the book “The Internet of Things: Foundation for Smart City, eHealth and Ubiquitous Computing”, Eds. Armentano, Bhadoria, Chatterjee, Deka,
by CRC, ISBN 9781498789028, 2017.
- M. ElSherief, B. Alipour, M. Alqathrady, T. ElBatt, A. Zahran, A. Helmy, "A Novel Mathematical Framework for Similarity-based Opportunistic
Social Networks", Pervasive and Mobile Computing (PMC) Journal – Elsevier, pp. 134 – 150, Vol. 42, December 2017.
- W. Hsu, F. Bai, A. Helmy, "Mobility Modeling for Vehicular Networks", Book chapter in a book by Chapman
& Hall/CRC, (Ed. A. Boukerche), 40 pages. Accepted. To appear.
Refereed Conference Paper Proceedings
- M. Al-Qathrady, A. Helmy, "Improving BLE Distance Estimation and Classification using TX power and Machine Learning: A Comparative Analysis",
In proceedings of the ACM MSWiM (International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems), November 2017.
- R. Ketabi, B. Alipour, A. Helmy, "En Route: Towards Vehicular Mobility Scenario Generation at Scale", In proceedings of the IEEE INFOCOM – SmartCity
workshop, May 2017. (Avg. review score: 5/5).
- M. Al-Qathrady, A. Helmy, "Location-Centric Flow Flux for Improved Indoor Mobility Models", In proceedings of the IEEE INFOCOM – SmartCity
workshop, May 2017.
Refereed Posters, Demos
- R. Ketabi, B. Alipour, A. Helmy, "Poster Abstract: En Route: Towards Trace-based Simulation of Vehicular Mobility", IEEE INFOCOM, May 2017.
(Winner of The Best Poster Award).
- M. Al-Qathrady, A. Helmy, “Poster Abstract: Location-Centric Flow Flux for Improved Indoor Mobility Models”, IEEE INFOCOM, May 2017.
2016
- U. Kumar, A. Helmy, "ConnectEnc: Encounter-based Opportunistic Social Discovery in Mobile Networks", Computer Communications Journal-Elsevier,
(under review)
Refereed Conference Paper Proceedings
- M. Al-Qathrady, A. Helmy, K. Almuzaini, "Infection Tracing in Smart Hospitals", In proceedings of the IEEE WiMob conference - e-Health
Pervasive Wireless Applications and Services workshop (eHPWAS), Oct. 2016.
2015
- S. Moghaddam, A. Helmy, "Multi-modal Mining and Modeling of Big Mobile Networks Based on Users Behaviors and Interests",
IEEE Network Special Issue on Big Data for Networking, Submitted.
Refereed Conference Paper Proceedings
-
S. Moghaddam, A. Helmy, “Interest-based Mining and Modeling of Big Mobile Networks”,
In proceedings of IEEE Big Data Service (IEEE International Conference on Big Data Computing Service and Applications),
March/April 2015. [Acceptance rate: ~25%]
- G. Thakur, P. Hui, A. Helmy, "Evidence of Long Range Dependence and Self-similarity in Urban Traffic Systems", In proceedings of the
International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL), November 2015. [Acceptance rate: ~18%]
- M. ElSherief, T. ElBatt, A. Zahran, A. Helmy, "An Information-theoretic Model for Knowledge Sharing in Opportunistic Social Networks",
In proceedings of the 8th IEEE International Conference on Social Computing and Networking (SocialCom), December 2015.
2014
- J. Kim, A. Helmy, "Analysing the Mobility, Predictability and Evolution of WLAN Users", Int'l Journal of Autonomous
and Adaptive Communications Systems, Vol. 7, Iss. 1/2, pp. 169-191, Jan 2014.
- U. Kumar, A. Helmy, "Encounter-Based Opportunistic
Social Discovery in Mobile Networks", in
"Opportunistic Mobile Social Networks" book (Eds. J. Wu, Y Wang), CRC press, ISBN 9781466594944,
Ch. 14, pp. 403-433, August 2014.
- W. Hsu, A. Helmy, "Behavior-aware Mobile Social Networking", Book Chapter, in "The Art of
Wireless Sensor Networks" book (Ed. H. Ammari). Springer, ISBN 978-3-642-40066-7/978-3-642-40065-0,
pp. 639-664, 2014.
Refereed Conference Paper Proceedings
-
S. Moghaddam, A. Helmy, "Interest-aware Implicit Multicast (iCast): Opportunistic Mobile Data Dissemination
Without Per-group Management", In proceedings of ACM MobiCom MobiArch (Mobility in the Evolving
Internet Architecture Workshop), Sept 2014.
- U. Kumar, A. Helmy, "Social Discovery using Longitudinal Spatial Smartphone Sensing", In proceedings of IEEE WCNC, April 2014.
- M. ElSherief, T. ElBatt, A. Zahran, A. Helmy, "The Quest for User Similarity in Mobile Societies",
In proceedings of IEEE PerCom SCI (Int'l workshop on Social and Community Intelligence), March 2014. [Acceptance rate: 17%]
2013
- G. Thakur, P. Hui, A. Helmy, "The Structure and Traffic Flow
Anatomy of the Planet-Scale Urban Vehicular Mobility",
Networking Science Journal - Springer, ISSN 2076-0310, pp. 13-23, December 2013.
Refereed Conference Paper Proceedings
- D. Fay, G. Thakur, P. Hui, A. Helmy, "Knowledge Discovery and
Causality in Urban City Traffic: A study using Planet Scale
Vehicular Imagery Data", In proceedings of ACM SIGSPATIAL IWCTS (Int'l workshop on Computational Transportation Science),
November 2013. (Winner of The Best Paper Award).
- G. Tuncay, G. Benincasa, A. Helmy, "Participant Recruitment and Data Collection Framework for Opportunistic Sensing:
A Comparative Approach", In proceedings of ACM MobiCom, CHANTS (the 8th ACM MobiCom workshop on Challenged Networks),
Sept 2013.
- G. Thakur, P. Hui, A. Helmy, "Data-driven Study of Urban Infrastructure to Enable City-wide
Ubiquitous Computing",
In proceedings of ACM KDD - Big Data Mining (BigMine) Int'l Workshop on Big Data, Streams and Heterogeneous Source Mining,
pp. 71-78, Aug 2013.
- G. Thakur, P. Hui, A. Helmy, "On the Existence of Self-similarity in Large-scale Vehicular Networks",
In proceedings of IEEE Int'l Wireless Communications & Mobile Computing Conference (IWCMC), pp. 1756 - 1761, July 2013.
- U. Kumar, J. Kim, A. Helmy, "Changing Patterns of Mobile Network (WLAN) Usage: Smart-Phones vs. Laptops",
In proceedings of IEEE Int'l Wireless Communications & Mobile Computing Conference (IWCMC), pp. 1584 - 1589, July 2013.
- S. Moghaddam, M. Carvalho, A. Helmy, "Domain and Location Specific Modeling of
Mobile Users Online Interests",
In proceedings of IEEE Int'l Wireless Communications & Mobile Computing Conference (IWCMC), pp. 1436 - 1441, July 2013.
- G. Thakur, A. Helmy, "COBRA: A Framework for the Analysis of Realistic Mobility Models",
In proceedings of IEEE INFOCOM, pp. 3351-3356, Global Internet (GI) workshop, pp. 145-150, April 2013. (Winner of the Best Paper Award
of the Internet Technical Committee (ITC) for 2013 (announced June 2015). Selected from ~190 published papers in seven IEEE ComSoc conferences).
- G. Thakur, P. Hui, A. Helmy, "Modeling and Characterization of
Vehicular Density at Scale", In proceedings of
IEEE INFOCOM, pp. 3129-3134, Global Internet (GI) workshop, pp. 91-96, April 2013.
Refereed Posters, Demos
-
G. Tuncay(g), G. Benincasa(g), A. Helmy, Poster: "Participant Recruitment and Data Collection Framework
for Opportunistic Sensing: A Comparative Approach", SRC, ACM MobiCom, poster presentation, 3 pages,
October 2013.
- U. Kumar, J. Kim, A. Helmy, Poster: "Comparing Wireless Network Usage: Laptop vs Smart-Phones", SRC,
ACM MobiCom, poster presentation, 3 pages, October 2013.
2012
- W. Hsu, D. Dutta, A. Helmy, TRACE:
""Structural Analysis of User
Association Patterns in University Campus Wireless LANs",
IEEE Transactions on Mobile Computing (TMC), Vol. 11, No. 11, pp. 1734-1748, November 2012.
- W. Hsu, D. Dutta, A. Helmy, "CSI: A Paradigm for Behavior-oriented
Profile-cast
Services in Mobile Networks, Ad Hoc Networks Journal - Elsevier, Vol. 10, Issue 8, pp. 1586-1602, November 2012.
- G. Thakur, U. Kumar, W. Hsu. A. Helmy, "Gauging Human Mobility Characteristics and its Impact on
Mobile Routing Performance", Int'l Journal of Sensor Networks, Vol. 11, Iss. 3,
pp. 179-191, April 2012.
- G. Tuncay, G. Benincasa, A. Helmy, "Autonomous and Distributed Recruitment and Data Collection
Framework for Opportunistic Sensing", ACM Mobile Computer and Communications Review (MC2R),
pp. 50-53, Vol. 16, Iss. 4, October 2012. [Top 5, finalist in ACM MobiCom Student
Research Competition (SRC)].
Refereed Conference Paper Proceedings
- U. Kumar, A. Helmy, "Discovering
Trustworthy Social Spaces", ACM SenSys - PhoneSense (Int'l
Workshop on Sensing Applications on Mobile Phones), November 2012.
- A. Almutairi, M. Somaiya, S. Moghaddam, S. Ranka, A. Helmy, "A Global Local
Modeling of Internet Usage in Large Mobile Societies", ACM MSWiM, October 2012.
- G. Thakur, P. Hui, A. Helmy, "A Framework for Realistic Vehicular Network Modeling using
Planet-scale Public Webcams", ACM MobiSys - HotPlanet (Workshop on Hot topics in Planet-Scale
Measurements), June 2012.
- G. Thakur, P. Hui, A. Helmy, "Modeling and Characterization of Urban Streets: Vehicular Mobility
Using Web Cameras", IEEE INFOCOM - NetSciCom (Workshop on Network Science for Communication Networks),
March 2012.
Refereed Posters, Demos
- G. Tuncay, G. Benincasa, A. Helmy, "Autonomous and Distributed Recruitment and Data Collection Framework for Opportunistic Sensing",
SRC, ACM MobiCom, Aug 2012.
- G. Tuncay, S. Moon, A. Helmy, "Mobile Social Networking Testbed", IEEE INFOCOM, Apr, 2012.
- U. Kumar, A. Helmy, "Discoverying Trustworthy Social Spaces", IEEE INFOCOM, Apr, 2012.
- S. Moghaddam, Y. Parthasarathy, A. Dobra, A. Helmy, "Efficient Large-scale Data-driven Network
Mining", IEEE INFOCOM, Apr, 2012.
2011
- S. Wang, A. Helmy, "BEWARE: Background Traffic-Aware Rate Adaptation for
IEEE 802.11", IEEE/ACM Transactions on Networking, Vol. 19, Issue 4, August 2011.
- S. Moon, A. Helmy, "Contact rule-based Decision for Mobile Social Networking Testbeds",
ACM Mobile Computer and Communications Review (MC2R), Vol. 15, No. 4, pp. 49-51, Oct 2011.
- Y. Kim, A. Helmy, "Attacker Trace-back in Wireless and Mobile Networks", Book Chapter (Chapter 5), Handbook on
Security and Networks, Eds. Y. Xiao, F. Li, H. Chen, by World Scientific Publishing Co., ISBN: 978-981-4273-03-9, March 2011.
- S. Tanachaiwiwat, A. Helmy, "Worm Propagation and Interaction in Mobile Networks", Book Chapter (Chapter 6),
Handbook on Security and Networks, Eds. Y. Xiao, F. Li, H. Chen, by World Scientific Publishing Co., ISBN: 978-981-4273-03-9,
March 2011.
- W. Hsu, A. Helmy, "Trace-based Analysis of Mobile User Behaviors for Opportunistic Networks", Book Chapter in the book
"Mobile Opportunistic Networks: Architectures, Protocols and Applications", published by Auerbach Publications, Taylor
& Francis Group, CRC Press, ISBN: 978-1-4200-6012-6, February 2011.
Refereed Conference Paper Proceedings
- G. Thakur, P. Hui, A. Helmy, "Spatial and Temporal Analysis of Planet
Scale Vehicular Imagery Data", IEEE International conference on Data Mining
workshop on Spatial and Spatio-Temporal Data Mining (ICDM - SSTDM),
December 2011.
- S. Moghaddam, A. Helmy, "Multidimensional Modeling and Analysis of Wireless
Users Online Activity and Mobility: A Neural-networks Map Approach",
ACM MSWiM (14th International Conference on Modeling, Analysis and
Simulation of Wireless and Mobile Systems), Nov. 2011.
[Acceptance rate: 23%]
- S. Moghaddam, A. Helmy, "SPIRIT: A Simulation Paradigm for Realistic Design of Mature
Mobile Societies",
IEEE IWCMC (Int.l Conf. on Wireless Communications and Mobile Computing), July 2011.
- G. Thakur, U. Kumar, A. Helmy, W. Hsu, "On the Efficacy of Mobility Modeling for DTN Evaluation: Analysis of Encounter
Statistics and Spatio-Temporal Preferences", IEEE IWCMC (Int.l Conf. on Wireless Communications and Mobile Computing),
July 2011.
- J. Kim, A. Helmy, "The Evolution of WLAN User Mobility and Its Effect on Prediction",
IEEE IWCMC (Int.l Conf. on Wireless Communications and Mobile Computing), July 2011.
- S. Moon, A. Helmy, "Design and Implementation of Mobile Networking Testbeds with Personality Profiles",
IEEE IWCMC Workshop on Multihop Wireless Network Testbeds and Experiments, July 2011.
Refereed Posters & Demos
- S. Moghaddam, A. Helmy, S. Ranka, "Behavior-aware Traffic Modeling of Mobile Internet: An Information Theoretic Co-clustering Approach",
ACM MobiCom, Sept 2011.
- S. Moon, A. Helmy, "Embedding Friendship Contact Profiles in Mobile Nodes: Towards Realistic Mobile Social Networking Test Beds",
SRC, ACM MobiCom, Sept 2011.
- G. Thakur, P. Hui, A. Helmy, "GlobalSense: A Framework for Studying Planet-Scale Vehicular Mobility",
demo, ACM MobiCom, Sept 2011.
- A. Helmy, S. Ranka, "Large-scale Profile-based Behavioral Modeling,
Networking and Computing", (white paper),
NSF Workshop on Pervasive Computing at Scale, Jan 2011. [Acceptance rate: 24%, 57 of 229].
2010
- W. Hsu, A. Helmy, "On Nodal Encounter Patterns in Wireless LAN
Traces", IEEE
Transactions on Mobile Computing (TMC), pp. 1563-1577, November 2010.
- S. Begum, A. Helmy, S. Gupta, "Modeling the Interactions Between MAC
and Higher Layers: A Systematic Approach to Generate High Level Scenarios from MAC Level Scenarios", ACM
Transactions on Modeling and Computer Simulation (TOMACS), Issue 1, Vol. 21, Article No. 7, December 2010.
-
K. Seada, A. Helmy, R2D2: "Geographic Rendezvous-based
Architectures for
Emergency Data Dissemination",
Journal on Wireless Communications and Mobile Computing, Wiley, Vol. 10, Issue 9, pp. 1221-1237, September 2010.
- Y. Kim, A. Helmy, "CATCH: A Protocol Framework for
Cross-layer Attacker Traceback in Mobile Multi-Hop Networks",
Ad Hoc Networks Journal - Elsevier, pp. 193-213, Vol. 8, Issue 2, March 2010.
- S. Moon, A. Helmy, "Spectral Analysis of Periodicity and Regularity for Mobile Encounters in Delay Tolerant Networks",
ACM Mobile Computer and Communications Review (MC2R), Vol. 14, No. 4, pp. 37-39, October 2010.
- U. Kumar, G. Thakur, A. Helmy, "Proximity-based Trust-advisor using Encounters",
ACM Mobile Computer and Communications Rev (MC2R), Vol. 14, No. 4, pp. 22-24, October 2010.
- J. Kim, A. Helmy, "Analyzing Mobility Evolution in WLAN Users: How predictable are we?",
ACM Mobile Computer and Communications Rev (MC2R), Vol. 14, No. 3, pp. 10-12, July 2010.
- S. Moghaddam, A. Helmy, "Modeling of Internet Usage in Large Mobile Societies Using Self-Organizing Maps",
ACM Mobile Computer and Communications Review (MC2R), Vol. 14, No. 4, pp. 13-15, October 2010.
Refereed Conference Paper Proceedings
- G. Thakur, M. Sharma, A. Helmy, "SHIELD: Social sensing and Help In Emergency
using mobiLe Devices",
IEEE GlobeCom (Global Communications Conference), Dec 2010. [Acceptance rate: 27% for full presentations].
- S. Moon, A. Helmy, "Understanding periodicity and regularity of nodal encounters in mobile networks: A spectral analysis",
IEEE GlobeCom, Dec 2010. [Rate: 27% for full presentations].
- S. Moghaddam, A. Helmy, "Internet Usage Modeling of Large Wireless Networks Using Self Organizing Maps",
IEEE Workshop on Scenarios for Network Evaluation Studies (SCENES), in conjunction with IEEE MASS,
pp. 612 - 617 , Nov. 2010. [Acceptance rate: 16%].
- S. Moghaddam, A. Helmy, S. Ranka, M. Somaya, "Data-driven
Co-clustering Model of Internet Usage in Large Mobile Societies", 13th ACM Int'l Conf on Modeling, Analysis
and Simulation of Wireless and Mobile Systems (MSWIM), Oct 2010 [Typical acceptance rate for mswim: ~20%].
- U. Kumar, A. Helmy, "Extract: Mining Social Features from WLAN
Traces: A Gender-Based Case Study", ACM MSWIM,
Oct 2010.
- G. Thakur, A. Helmy, W. Hsu, "Similarity Analysis and Modeling in Mobile
Societies: The missing link", ACM MobiCom workshop on Challenged Networks (CHANTS), Sept 2010.
- J. Faruque, A. Helmy, "TABS: Link Loss Tolerant Data Routing Protocol for Multi-hop Wireless Sensor Networks",
IEEE Int.l Conf. on Sensor Networks, Ubiquitous and Trustworthy Computing (SUTC), pp. 11 - 18, June 2010.
Refereed Posters, Demos
- A. Helmy, S. Ranka, "Large-scale Profile-based Behavioral Modeling, Networking and Computing", (white paper),
NSF Workshop on Pervasive Computing at Scale, Jan 2011. [Acceptance rate: 24%, 57 of 229].
- S. Moon, A. Helmy, Demo: "Mobile Testbeds with an Attitude", IEEE GlobeCom, Dec 2010 -
ACM MobiCom - ACM MobiCom WiNTECH, Sept 2010. [Winner of the 2nd place prize]
2009
-
W. Hsu, T. Spyropoulos, K. Psounis, A. Helmy, TVC:
"Modeling
Spatial and
Temporal Dependencies of User Mobility in Wireless Mobile Networks",
IEEE/ACM Transactions on Networking, pp. 1564-1577, Vol. 17, No. 5, October 2009.
- S. Tanachaiwiwat, A. Helmy, "Encounter-based Worms: Analysis
and Defense", Ad Hoc Networks Journal - Elsevier. Volume 7, Issue 7, Pages 1414-1430, September 2009.
-
S. Wang, A. Helmy, "Background Traffic-Aware
Rate Adaptation for IEEE 802.11: Implementation and Test-bed Experimental Results", ACM Mobile Computer and
Communications Review (MC2R), Vol. 13, Issue 3, pp. 46-50, Jul. 2009. [Top 4, finalist in ACM MobiCom SRC]
- J. Kim, A. Helmy, "The Challenges of
Accurate Mobility
Prediction for Ultra Mobile Users", ACM Mobile Computer and Communications Review (MC2R),
Vol. 13, Issue 3, pp. 58-61, Jul. 2009.
- S. Tanachaiwiwat, A. Helmy, "Analysis of Worm Interactions: In Wired and Wireless Networks",
Book published by VDM Verlag, ISBN 978-3-639-15653-9, May 2009.
Refereed Conference Paper Proceedings
- U. Kumar, A. Helmy, "Human behavior and Challenges of anonymizing WLAN traces", IEEE Globecom, Nov. 2009.
[Acceptance: 34%]
- J. Kim, A. Helmy, "The Challenges of Accurate Mobility Prediction for Ultra Mobile Users",
Eurosis Modeling and Simulation (ESM) Conference, pp. 297-301, October 2009.
- S. Begum, A. Helmy, S. Gupta, "Modeling and Test Generation for Worst-Case Performance Evaluation of MAC Protocols for
Wireless Ad Hoc Networks", IEEE Int'l Symposium on Modelling, Analysis and Simulation of
Computer and Telecommunication Systems (MASCOTS), full presentation, Sept. 2009. [Full presentation acceptance:
20%].
Refereed Posters
- U. Kumar, G. Thakur, W. Hsu, A. Helmy, "Practical Profile-based DTN Routing in Mobile
Social Netowkrs", IEEE ICNP (Poster), October 2009.
2008
-
M. Zuniga, K. Seada, B. Krishnamachari, A. Helmy, "Efficient
Geographic
Routing over Lossy Links in Wireless Sensor Networks", ACM
Transactions on Sensor Networks (TOSN), pp. 12:1-33, Article 12 (33 pages), Vol.
4, No. 3, May 2008.
- K. Nahm, A. Helmy, C.-C. Kuo, "Cross-layer
Interaction of TCP and Ad Hoc Routing
Protocols in Multihop 802.11 Networks", IEEE Transactions on
Mobile
Computing (TMC), pp. 458 - 469, Vol. 7, Issue 4, April 2008.
- U. Kumar, N. Yadav, A. Helmy, "Gender-based Feature Analysis in
Campus-wide WLANs", ACM Mobile Computer and Communications Review (MC2R), Vol. 12, Issue 1, pp. 40-42,
January 2008. [Top 10% & Winner of 3rd place prize in ACM MobiCom SRC].
- W. Hsu, D. Dutta, A. Helmy, "Profile-Cast: Behavior-Aware Mobile
Networking", ACM Mobile Computer and Communications Review (MC2R), Vol.
12, Issue 1, pp. 52-54, January 2008. [Top 5 in ACM MobiCom SRC].
Refereed Conference Paper Proceedings
-
S. Wang, A. Helmy,
"BEWARE:
Background Traffic-Aware Rate Adaptation for IEEE 802.11",
Extended (plenary session) paper at The 9th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), June 2008 [Acceptance to the plenary session: 7% of 181 submissions.
Acceptance rate overall: 17%]
- J. Faruque, A. Helmy,
"PBS:
A Virtual Grid Architecture for Gradient-Based Active Querying in Sensor
Networks",
ACM/IEEE Int'l Symposium on Collaborative Technologies and Systems
(CTS) [Workshop on Distributed Collaborative Sensor Networks (DCSN)], pp. 9-18, May 2008.
- U. Kumar, A. Helmy, "Gender-based Grouping of Mobile Student
Societies", IEEE/ACM IPSN Int'l Workshop on Mobile Device and Urban
Sensing (MODUS), April 2008.
- W. Hsu, D. Dutta, A. Helmy, "Profile-Cast: Behavior-Aware Mobile
Networking", IEEE Wireless Communications and Networking Conference (WCNC), pp. 3033-3038, March 2008.
Refereed Posters, Demos
- S. Wang, A. Helmy, "BeWare: Wireless MAC rate adaptation Analysis and Testing", ACM MobiCom, Sept 2008.
- J. Kim, A. Helmy, "The Challenges of Accurate Mobility Prediction for Ultra Mobile Users", ACM MobiCom, Sept 2008.
- U. Kumar, A. Helmy, "How Private are WLAN traces?", IEEE ICNP, Oct 2008.
- G. Bhaskara, S. Gupta, A. Helmy, "Topology Generation for Protocol Design and Testing", IEEE ICNP, October 2008.
- J. Kim, A. Helmy, "Mobility Characteristics and Prediction for Ultra Mobile Users", IEEE ICNP, October
2008.
- S. Moon, U. Kumar, J. Kim, W. Hsu, A. Helmy, "Visualization and Representation of Mobile Network Users", IEEE SECON
(Demo) June 2008, IEEE INFOCOM (Demo) April 2008, IEEE ICNP (Poster) October 2008.
2007
-
K. Seada, A. Helmy, R. Govindan,
"Modeling and Analyzing the Correctness
of Geographic Face Routing under Realistic Conditions", Ad Hoc
Networks Journal - Elsevier, Special issue on Recent Advances in Wireless Sensor Networks, pp. 855-871, Vol. 5, Issue 6, August 2007.
-
W. Hsu, D. Dutta, A. Helmy, "On the Structure of User Association
Patterns in Wireless LANs", ACM Mobile Computer and Communications Review (MC2R), Vol.11, No.2, pp. 67-68, Apr 2007
Refereed Conference Paper Proceedings
-
W. Hsu, T. Spyropoulos, K. Psounis, A. Helmy, TVC:
"Modeling
Time-variant User Mobility in Wireless Mobile Networks",
IEEE INFOCOM, pp.758-766,May 2007 [Acceptance rate: ~17%]
- F. Bai, A. Helmy, MAID:
"Impact
of Mobility on Mobility-Assisted Last Encounter Based Routing
Protocols",
IEEE SECON (4th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks), pp. 461-470, June 2007. [Acceptance: 20%].
- W. Hsu, D. Dutta, A. Helmy, "Mining Behavioral Groups in
Large Wireless LANs", ACM MobiCom, pp. 338-341 (short paper), Sept. 2007. [In the top 11% of 233 submissions.]
- S. Tanachaiwiwat, A. Helmy, "On the Performance Evaluation and
Prediction of Encounter-based Worm Interactions Based on Node
Characteristics", ACM MobiCom Workshop on Challenged Networks (CHANTS),
pp. 67-74, September 2007.
- S. Begum, S. Gupta, A. Helmy, "Performance Analysis of Wireless MAC
Protocols using a Search-based Framework", 15th IEEE Int'l Symposium on
Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), Oct. 2007.
- S. Tanachaiwiwat, A. Helmy, "Modeling and Analysis of Worm
Interactions (War of the Worms)", IEEE Broadnets, September 2007.
- S. Tanachaiwiwat, A. Helmy, "Computer Worm Ecology in
Encounter-based Networks", IEEE Broadnets (4t Int'l Conf on Broadband Communications,
Networks & Systems), September 2007.
Refereed Posters
- U. Kumar, N. Yadav, A. Helmy, "Gender-based Feature Analysis in Campus-wide WLANs", ACM MobiCom, Sept 2007.
- W. Hsu, D. Dutta, A. Helmy, "Profile-Cast: Behavior-Aware Mobile Networking", ACM MobiCom, Sept 2007.
- S. Tanachaiwiwat, A. Helmy, "Demo: Proof-of-Concept Worm Interactions via Mobile Devices", ACM MobiCcom CHANTS Workshop,
Sept 2007.
- J. Kim, Y. Du, M. Chen, A. Helmy, "Comparing Mobility and Predictability of VoIP and WLAN Traces", ACM MobiCom CRAWDAD
Workshop, Sept 2007.
- U. Kumar, N. Yadav, A. Helmy, "Analyzing Gender-gaps in Mobile Student Societies: Method and Data Manipulation", ACM
MobiCom CRAWDAD Workshop, Sept 2007.
2006
-
K. Seada, A. Helmy, "Efficient
and Robust Geocasting Protocols for Sensor Networks", Computer
Communications Journal-Elsevier, Special Issue
on Dependable Wireless Sensor Networks,
Vol. 29, Issue 2, pp. 151-161, January 2006.
-
F. Bai, A. Helmy, "The IMPORTANT Framework for Analyzing and Modeling
the Impact of
Mobility in Wireless Adhoc Networks", Book Chapter in the book "Wireless Ad Hoc and Sensor Networks", Springer, October 2006, ISBN:
978-0-387-25483-8.
- F. Bai, A. Helmy, "A Survey of Mobility Modeling and Analysis in
Wireless Adhoc Networks", Book Chapter in the book "Wireless Ad Hoc and Sensor Networks", Springer, October 2006, ISBN: 978-0-387-25483-8.
- K. Seada, A. Helmy, "Geographic Services for Wireless Networks",
Book Chapter in the "Handbook of Algorithms for Wireless Networking and Mobile
Computing" published by Chapman & Hall/CRC, pp. 343-364, January 2006,
ISBN: 1-58488-465-7.
- K. Seada, A. Helmy, "Geographic Routing in Sensor Networks", Chapter in
the Encyclopedia of Sensors, American Scientific Publishers, Volume 4, pp. 193-204, 2006, ISBN: 1-58883-056-X (Set), ISBN: 1-58883-060-8 (Volume
4).
- S. Ghandeharizadeh, A. Helmy, B. Krishnamachari, F. Bar, T. Richmond,
"Data Management Techniques for Continuous Media In Ad-Hoc Networks of
Wireless Devices", "Data Discovery, Routing and Traffic Patterns" ,
"Placement of Continuous Media in Ad-Hoc Networks of Devices", "Mobility
Modeling and Design for Mobility", four book chapters in Encyclopedia of
Multimedia, Furht, Borko (Ed.), Springer 2006, XXIII, Hardcover, ISBN: 978-0-387-24395-5.
Refereed Conference Paper Proceedings
- S. Tanachaiwiwat, A. Helmy, "Analyzing the Interactions of
Self-Propagating Codes in Multi-hop Networks", IEEE SSS (8th Int'l Symposium on Stabilization, Safety, and Security of Distributed Systems), (Short paper), November 2006.
- S. Wang, A. Helmy, "Performance
Limits and Analysis of Contention-based IEEE 802.11 MAC", IEEE LCN (31st Annual IEEE Conference
on Local Computer Networks), pp.418-425, Nov. 2006
-
Y. Kim, A. Helmy, "Attacker traceback with cross-layer monitoring in
wireless multi-hop networks",
Proceedings of the ACM SASN (fourth ACM workshop on Security of ad hoc and sensor networks),
pp. 123-134, October 2006.
- S. Tanachaiwiwat, A. Helmy, "Encounter-based Worms: Analysis and
Defense", 2nd IEEE Workshop on Wireless Mesh Networks (WiMesh), pp.
170-172, September 2006.
-
W. Hsu, A. Helmy, "On
Nodal Encounter Patterns in Wireless LAN Traces", The 2nd IEEE
Int'l Workshop on
Wireless Network Measurement (WiNMee), April 2006 [Nominated for best paper award at USC EE Dept, 2006].
- W. Hsu, A. Helmy, "On
Modeling User Associations in Wireless LAN Traces on University Campuses",
2nd IEEE Int'l Workshop on Wireless Network Measurement (WiNMee),
April 2006.
Refereed Posters
- W. Hsu, D. Dutta, A. Helmy, "Structure of User Associations in Wireless LANs", ACM MobiCom, Sept 2006.
- S. Tanachaiwiwat, A. Helmy, "Encounter-based Worms: Analysis and Defense", IEEE SECON, Sept 2006.
- W. Hsu, A. Helmy, "Principal Component Analysis of User Association Patterns in Wireless LAN Traces", IEEE INFOCOM, April
2006.
- W. Hsu, A. Helmy, "Capturing User Friendship in WLAN Traces", IEEE INFOCOM, Apr 2006.
- Y. Kim, A. Helmy, "Attacker Traceback and Countermeasure with Cross-layer Monitoring in Wireless Multi-hop Networks",
IEEE INFOCOM, April 2006.
- S. Tanachaiwiwat, A. Helmy, "VACCINE: War of the Worms in Wired and Wireless Networks", IEEE INFOCOM, April 2006.
- S. Begum, A. Helmy, S. Gupta, "A Framework for Modeling, Test Generation and Performance Evaluation of Wireless AdHoc and
Sensor MAC Protocols", IEEE INFOCOM, April 2006.
2005
-
A. Helmy, S. Gupta, "FOTG: Fault Oriented Stress Testing of Multicast
Routing", IEEE Communications Letters, Vol. 9, No. 4, pp. 375-377, April 2005.
- A. Helmy, S. Garg, P. Pamu, N. Nahata, "CARD:
A Contact-based
Architecture for Resource Discovery in Ad Hoc Networks", ACM Mobile
Networks and Applications (MONET) Journal, Vol. 10, Issue 1, pp.
99-113, February 2005. [Acceptance rate: 22% of 60 submissions]
- N. Sadagopan, B. Krishnamachari, A. Helmy, "Active Query Forwarding in
Sensor Networks (ACQUIRE)", Ad Hoc Networks Journal - Elsevier, Vol. 3, Issue 1, pp. 91-113, January 2005. [Acceptance
rate: 12%]
-
A. Helmy, TRANSFER: "Contact-extended
Zone-based Routing for Transactions in Ad Hoc
Networks", IEEE Transactions on Vehicular Technology, Vol. 54,
No. 1, pp. 307-319, January 2005.
- W. Hsu, K. Merchant, H. Shu, C. Hsu, A. Helmy, WWP: "Weighted Way
Mobility
Model and its Impact on Ad Hoc Networks", ACM Mobile Computer and
Communications Review (MC2R), Vol. 9, No. 1, pp. 59-63, January 2005.
- A. Helmy, "Efficient Resource Discovery in Wireless
AdHoc Networks: Contacts Do Help", Book chapter in "Resource Management in Wireless Networking", Springer, ISBN:
0-387-23807-7, Vol. 16, 2005.
Refereed Conference Paper Proceedings
-
K. Nahm, A. Helmy, C.-C. Kuo, "TCP over Multihop 802.11 Networks: Issues
and Performance Enhancement",
ACM MobiHoc (6thACM International Symposium on Mobile Ad Hoc Networking and Computing), pp. 277-287, May 2005. [Acceptance rate: 14% of 281
submissions]
- S. Ebrahimi, A. Helmy, S. Gupta, "TCP
vs. TCP: a Systematic Study
of Adverse Impact of Short-lived TCP Flows on Long-lived TCP Flows",
IEEE INFOCOM, pp. 926-937, March 2005. [Acceptance rate: 17% of
1419 submissions] [Nominated for best paper award at USC EE, 2005].
- A. Das, D. Dutta, A. Helmy, A. Goel, J. Heidemann, "Low
State Fairness: Lower Bounds and Practical Enforcement", IEEE
INFOCOM, pp. 2436-2446, March 2005 [Acceptance rate: 17%].
-
C. Li, W. Hsu, B. Krishnamachari, A. Helmy, "A Local Metric for Geographic
Routing with Power Control in Wireless Networks", IEEE Conference on
Sensor and Ad Hoc Communications and Networks (SECON), September 2005 [Acceptance rate: 27% of 202 submissions]
- Y. Kim, A. Helmy, "SWAT: Small
World-based Attacker Traceback in Ad-hoc Networks", IEEE/ACM Mobiquitous Conference, pp. 85-96, Jul 2005.
[Acceptance rate: 35% of 127]
- S. Tanachaiwiwat, A. Helmy, "Correlation analysis for alleviating
effects of inserted data in wireless sensor networks", IEEE/ACM Mobiquitous Conference, pp.97-108, Jul
2005 [Rate: 35%]
- J. Faruque, K. Psounis, A. Helmy, "Analysis of Gradient-based
Routing Protocols in Sensor Networks",
IEEE/ACM Int'l Conference on Distributed Computing in Sensor Systems (DCOSS), pp. 258 - 275, June 2005. [Acceptance rate: 28% of 85 submissions]
-
S. Wang, Y. Chen, T. Lee, A. Helmy, "Performance Evaluations for Hybrid
IEEE 802.11b and 802.11g Wireless Networks", 24th IEEE International
Performance Computing and Communications Conference (IPCCC), April 2005. [Acceptance rate: 32% of 115
submissions].
Refereed Posters
- W. Hsu, A. Helmy, "Encounter-based message broadcasting in ad hoc networks with intermittent connectivity", ACM MOBIHOC,
May 2005.
- K. Nahm, A. Helmy, C. Kuo, "Improving Stability and Performance of Multihop 802.11 Networks", ACM MOBIHOC, May 2005.
- F. Bai, A. Helmy, "The Impact of Mobility on the Mobility-Assisted Information Diffusion Protocol", IEEE INFOCOM,
March 2005.
- Y. Kim, A. Helmy, "SWAT: Small World-based Attacker Traceback in Ad-hoc Networks", IEEE INFOCOM, March 2005.
- K. Nahm, A. Helmy, C. Kuo, "The impact of probe traffic scale on the stability of multihop 802.11 networks", IEEE INFOCOM,
March 2005.
2004
-
K. Seada, A. Helmy, S. Gupta, "A
Framework for Systematic Evaluation of
Multicast Congestion Control Protocols", IEEE Journal on Selected
Areas in Communications (JSAC), Volume 22, Issue 10, pp. 2048- 2061,
December 2004. [Nominated for best paper award at USC EE, 2005].
-
F. Bai, N. Sadagopan, B. Krishnamachari, A. Helmy, PATHS:
"Modeling Path Duration
Distributions in MANETs and their Impact on Routing Performance", IEEE Journal on Selected
Areas in Communications (JSAC), Vol. 22, No. 7, pp. 1357-1373, September 2004. [Acceptance rate: 18% of 82] [Nominated for best paper award at USC EE Dept, 2005].
- A. Das, D. Dutta, A. Helmy, "A
Low-state Packet Marking Framework for Approximate Fair Bandwidth Allocation", IEEE Communications
Letters, Vol. 8, No. 9, pp. 588-590, Sept 2004.
- D. Son, A. Helmy, B. Krishnamachari, "The
Effect of Mobility-induced Location Errors on Geographic Routing in Mobile
Ad Hoc and Sensor Networks: Analysis and Improvement using Mobility
Prediction", IEEE Transactions on Mobile Computing (TMC),
Special issue on Mission-Oriented Sensor Networks, Vol. 3, No. 3, pp.
233-245, July 2004 [Acceptance rate: 25%]
- F. Bai, G. Bhaskara, A. Helmy, "Building
the Blocks of Protocol Design
and Analysis: Challenges and Lessons Learned from Case Studies on Mobile
Ad hoc Routing and Micro-Mobility Protocols", ACM Computer
Communications Review (CCR), Special issue on Science of Networking
Design, Volume 34,
Number 3, pp.57-69, July 2004. [Acceptance rate: 15% of 40].
- A. Helmy, M. Jaseemuddin, Ganesha Bhaskara, M&M: "Multicast-based
Mobility: A Novel Architecture for Efficient Micro-Mobility", IEEE
Journal on Selected Areas in Communications (JSAC), Vol. 22, No. 4,
pp. 677-690, May 2004. [Acceptance rate: 25% of 60 submissions]
- A. Helmy, S. Gupta, D. Estrin, "The STRESS Method for Boundary-point
Performance Analysis of End-to-end Multicast Timer-Suppression Mechanisms", IEEE/ACM Transactions on Networking, Volume 12, Issue 1, pp.
44-58, February 2004. [Acceptance rate '03: 18% of 439]
- A. Helmy, "CAPTURE: location-free Contact-Assisted Power-efficienT
qUery REsolution for Sensor Networks", ACM Mobile Computer and Communications Rev. (MC2R), Sp. issue on Wireless PAN/Sensor Networks,
vol. 8, No. 1, pp. 27-47, Jan '04. [Acceptance rate: 22% of 35]
- Y. Kim, J. Lee, A. Helmy, "Impact
of Location Inconsistencies on
Geographic Routing in Wireless Networks", ACM Mobile Computer and Communications Rev (MC2R), Sp. issue on
Wireless PAN/Sensor Networks, vol. 8, No. 1, pp. 48-60, Jan '04. [Acceptance rate: 22% of 35]
Refereed Conference Paper Proceedings
-
K. Seada, M. Zuniga, A. Helmy, B. Krishnamachari, "Energy-Efficient
Forwarding Strategies for Geographic Routing in Lossy Wireless Sensor
Networks", 2nd ACM Conference on Embedded Networked Sensor Systems
(SenSys), pp. 108-121, November 2004. [Acceptance: 14% of 145] [Nominated for best paper award at USC EE Dept, 2005].
- K. Seada, A. Helmy, R. Govindan, "On the Effect of Localization Errors
on Geographic Face Routing in Sensor Networks", 3rd IEEE/ACM International
Symposium on Information Processing in Sensor Networks (IPSN), pp. 71-80, April 2004. [Acceptance rate: 33% of 150] [Nominated for best paper award
at USC EE Dept, 2004].
-
J. Faruque, A. Helmy, "RUGGED: RoUting on finGerprint
Gradients in sEnsor
Networks", IEEE Int'l Conf on Pervasive Services (ICPS), pp.167-177, July 2004. [Acceptance rate: 36%]. [ppt]
- F. Bai, N. Sadagopan, A. Helmy, "BRICS:
A Building-block approach for
analyzing RoutIng protoCols in Ad Hoc Networks - A Case Study of Reactive
Routing Protocols", IEEE Int'l Conf on Communications (ICC),
Vol. 6, pp. 3618-3622, June 2004. [Acceptance rate: 29%].
- K. Seada, A. Helmy, R2D2: "Rendezvous Regions: A Scalable
Architecture for Service Location and Data-Centric Storage in Large-Scale Wireless
Networks", IEEE/ACM IPDPS Int'l Workshop on Algorithms for Wireless,
Mobile, Ad Hoc and Sensor Networks (WMAN), pp.218-225, Apr '04.
- G. Bhaskara, A. Helmy, "TCP over Micro-mobility Protocols: Systematic
Ripple Effect Analysis", IEEE Vehicular Technology Conference (VTC), Vol.
5, pp. 3095 - 3099, Sept 2004.
- K. Seada, A. Helmy, "Efficient Geocasting with Perfect Delivery in
Wireless Networks", IEEE WCNC, pp. 2551 - 2556, March 2004.
- D. Son, A. Helmy, B. Krishnamachari, "The
Effect of Mobility-induced
Location Errors on Geographic Routing in Ad Hoc Networks: Analysis and
Improvement using Mobility Prediction", IEEE WCNC, pp. 189-194
March 2004.
-
S. Begum, S. Wang, B. Krishnamachari, A. Helmy, "ELECTION:
Energy-efficient and Low-latEncy sCheduling scheme for wIreless sensOr NeTworks", IEEE LCN, November 2004.
- Y. Lu, H. Lin, Y. Gu, A. Helmy, "Towards Mobility-Rich Performance Analysis of
Routing Protocols
in Ad Hoc Networks: Using Contraction, Expansion and Hybrid Models", IEEE ICC, Vol. 7, pp. 4346-4352, June 2004. [Acceptance
rate: 29%].
- C. Shete, S. Sawhney, S. Herwadka, V. Mehandru, A. Helmy, ""Analysis of the Effects of
Mobility
on the Grid Location Service in Ad Hoc Networks", IEEE ICC, Vol. 7, pp. 4341-4345, Paris, France, June 2004. [Acceptance rate:
29%].
- Y. Kim, V. Sankhla, A. Helmy, "Efficient Traceback of DoS Attacks
using Small Worlds in MANET", IEEE VTC, Vol. 6, pp. 3979-3983, Sept 2004.
- W. Hsu, K. Merchant, H. Shu, C. Hsu, A. Helmy, "Preference-based
Mobility Model and the Case for Congestion Relief in WLANs using Adhoc
Networks", IEEE VTC, pp. 2962-2966, Sep. 04. [ppt]
- S. Sharma, V. Alatzeth, G. Grewal, S. Pradhan, A. Helmy, "A Comparative Study of Mobility Prediction Schemes for GLS Location
Service", IEEE VTC, Vol. 5, pp. 3125-3129, Sept 2004.
- D. Bhattacharjee, A. Rao, C. Shah, M. Shah, A. Helmy, "Empirical Modeling of
Campus-wide Pedestrian Mobility:
Observations on the USC Campus", IEEE VTC, pp. 2887 - 2891, Sept 2004.
- K. Nahm, A. Helmy, C.-C. J. Kuo, "On the Interaction between MAC and
Transport Layers for Media Streaming in 802.11 Ad-hoc Networks", SPIE
ITCOM, October 2004.
- R. Chitradurga, A. Helmy, "Analysis of Wired Short Cuts in Wireless
Sensor Networks", IEEE Int'l Conference on Pervasive Services (ICPS), pp. 179-188, July 2004. [ppt]
- S. Tanachaiwiwat, P. Dave, R. Bhindwale, A. Helmy, "Location-centric Isolation of Misbehavior
and Trust Routing
in Energy-constrained Sensor Networks", IEEE Workshop on Energy-Efficient Wireless Communications and Networks
(EWCN), IEEE IPCCC, pp. 463-470, April 2004.
- F. Bai, A. Helmy, "Comparative Analysis of Algorithms for Tree Structure Restoration in Sensor Network", IEEE EWCN Workshop IEEE
IPCCC, pp. 385-392, April 2004.
Refereed Posters
- K. Merchant, W. Hsu, H. Shu, C. Hsu, A. Helmy, "Weighted Way Mobility Model and its Impact on Ad Hoc Networks", ACM
MobiCom, Sept 2004.
- S. Ebrahimi, A. Helmy, S. Gupta, "A Systematic Simulation-based Study of Adverse Impact of Short-lived TCP Flows on
Long-lived TCP Flows", ACM SIGCOMM, August 2004.
- J. Faruque, K. Psounis, A. Helmy, "Analysis of Gradient-based Routing Protocols in Sensor Networks", ACM SIGCOMM, August
2004.
- D. Bhattacharjee, A. Rao, C. Shah, M. Shah, A. Helmy, "Trace-based Mobility Modeling for Campus-wide Mobile Ad-hoc
Networks", ACM SIGCOMM, August 2004.
- G. Grewal, S. Pradhan, S. Sharma, V. Alatzeth, A. Helmy, "A Comparative Study of Mobility
Prediction Schemes for Grid
Location Service", ACM SIGCOMM, August 2004. [pdf,
ppt]
- A. Das, D. Dutta, A. Goel, J. Heidemann, A. Helmy, "Lower Bounds for Approximate Fairness", ACM SIGCOMM,
August 2004.
2003
-
F. Bai, N. Sadagopan, A. Helmy,
"The
IMPORTANT
Framework for Analyzing the Impact of Mobility on Performance of Routing for Ad Hoc Networks",
Ad Hoc Networks Journal - Elsevier, Vol. 1, Issue 4, pp. 383 - 403, November 2003.
[Acceptance rate: 12%][Nominated for best paper award at USC EE Dept, 2004].
On the top 25 most requested articles (Ad Hoc Networks Journal) for
Jan-Dec'03 & Jan-Mar'04.
- A. Helmy, "Mobility-Assisted
Resolution of Queries in Large-Scale
Mobile Sensor Networks (MARQ)", Computer Networks Journal -
Elsevier, Special issue on Wireless Sensor Networks, Vol. 43, Issue 4,
pp. 437-458, November 2003. [Acceptance rate: 24% of 25 submissions].
- A. Helmy, "Small
Worlds in Wireless Networks", IEEE Communications Letters, pp. 490-492, Vol. 7, No. 10, October 2003.
- J. Faruque, A. Helmy, "Gradient-Based Routing in Sensor Networks", ACM Mobile Computer and Communications Review (MC2R), Vol. 7,
No. 4, pp. 50-52, October 2003.
- K. Seada, A. Helmy, R. Govindan, "On the Effect of Location Inaccuracy on Geographic Face Routing in Wireless Networks", ACM
MC2R,
Vol. 7, No. 4, pp. 61-63, October 2003.
Refereed Conference Paper Proceedings
-
N. Sadagopan, F. Bai, B. Krishnamachari, A. Helmy,
"PATHS:
analysis of PATH duration Statistics and their impact on reactive MANET routing protocols",
ACM MobiHoc, pp. 245-256, June 2003. [Acceptance rate: 15% of 189 submissions]. [ppt]
- F. Bai, N. Sadagopan, A. Helmy,
"IMPORTANT:
A framework to systematically analyze the Impact of Mobility on Performance of RouTing protocols
for Adhoc NeTworks", IEEE INFOCOM, pp. 825-835, San Francisco, CA, April 2003. [Acceptance rate: 20% of 1078 submissions] [Paper selected to the Ad Hoc Networks Journal for fast-track publication]
[ppt]
-
A. Helmy, "TRANSFER: Transactions Routing for Ad-hoc Networks with eFficient EneRgy",
IEEE GLOBECOM (Global Telecom. Conf),
pp. 398-404, December 2003. [Acceptance: 27%].
- G. Bhaskara, A. Helmy, S. Gupta, "Micro Mobility Protocol Design and
Evaluation: A Parameterized Building Block Approach", IEEE Vehicular Technology Conference (VTC), Symposium on IP Mobility,
pp.2019-2024 October 2003. [Acceptance rate: 19% of 76].
- Y. Kim, J. Lee, A. Helmy, "Impact of
Location Inconsistencies on
Geographic Routing in Wireless Networks", ACM Wkshp on Modeling, Analysis, Simulation of Wireless Mobile
Systems (MSWIM), with ACM MobiCom, pp.124-127, Sept '03. [Acceptance rate: 15% of 103]
- N. Sadagopan, B. Krishnamachari, A. Helmy, "The
ACQUIRE Mechanism for Efficient Querying in Sensor Networks", First IEEE International Workshop on Sensor Network Protocols
and Applications (SNPA), in conjunction with IEEE ICC, pp. 149-155, May 2003. [Acceptance: 37%].
- A. Helmy, S. Garg, P. Pamu, N. Nahata, "Contact Based Architecture for
Resource Discovery (CARD) in Large Scale MANets", IEEE/ACM IPDPS Int'l
Workshop on Wireless, Mobile and Ad Hoc Networks (WMAN), pp. 219-227, Apr 2003. [Acceptance: 29%] [Paper selected for forwarding to the
ACM MONET Journal for review and publication].
Refereed Posters
- J. Faruque, A. Helmy, "Gradient-Based Routing in Sensor Networks", ACM MobiCom, Sept 2003, IEEE ICNP Nov. 2003
- K. Seada, A. Helmy, R. Govindan, "On the Effect of Location Inaccuracy on Geographic Face Routing in Wireless Networks", ACM
MobiCom, Sept 2003, ACM SenSys, Nov. 2003.
- K. Seada, A. Helmy, "Rendezvous Regions: A Scalable Architecture for Service Location and Data-Centric Storage in Large-Scale
Wireless Networks", ACM MobiCom, Sept 2003, ACM SIGCOMM, August 2003.
- S. Wang, A. Helmy, "Effects of Small Transfers and Traffic Patterns on Performance and Cache Efficacy of Ad Hoc Routing", ACM
MobiCom, September 2003, IEEE ICNP, Nov. 2003.
- D. Son, J. Park, A. Helmy, "Mobility-Induced Location Errors and its Effect on Geographic Routing in Ad Hoc Networks", ACM
MobiCom, September 2003.
- A. Das, D. Dutta, A. Helmy, "A Low-state Packet Marking Framework for Approximate Fair Bandwidth Allocation", IEEE ICNP,
Nov. 2003.
- S. Begum, S. Gupta, A. Helmy, "An Error Oriented Test Generation (EOTG) Framework for Wireless Adhoc MAC Protocols",
IEEE ICNP, November 2003.
- S. Tanachaiwiwat, P. Dave, R. Bhindwale, A. Helmy, "Insecure Location Avoidance and Routing on Trust in Location-aware Sensor
Networks", IEEE ICNP, November 2003, ACM SenSys, Nov. 2003.
2002
-
A. Helmy, M. Jaseemuddin, G. Bhaskara, "Efficient
Micro-Mobility using
Intra-domain Multicast-based Mechanisms (M&M)", ACM SIGCOMM
Computer Communications Review (CCR), Volume 32, Number 5, pp. 61-72,
November 2002.
- N. Nahata, P. Pamu, S. Garg, A. Helmy, "Efficient
Resource Discovery
for Large Scale Ad hoc Networks using Contacts", ACM SIGCOMM
CCR, Vol. 32, No. 3, pp. 32, July 2002.
- K. Dantu, S. Kapadia, R. Sinha, A. Helmy, "Modeling
of
Mobility-Induced Losses in MANETs (MILMAN)", ACM SIGCOMM CCR,
Vol. 32, No. 3, pp. 30, July 2002.
Refereed Conference Paper Proceedings
-
A. Das, D. Dutta, A. Helmy, "Fair
Stateless Aggregate Marking using Active Queue Management Techniques",
5th IEEE/IFIP Int'l Conference on
Management of Multimedia Networks and Services (MMNS), pp. 211-223,
Santa Barbara, CA, October 2002. (Best Paper Award)
- A. Helmy, "Architectural Framework for Large-Scale Multicast in Mobile Ad Hoc
Networks", IEEE International Conference on Communications (ICC), Vol. 4, pp. 2036-2042, April 2002.
[ppt, pdf]
- A. Helmy, "State Analysis and Aggregation Study for Multicast-based Micro Mobility",
IEEE
International Conference on Communications (ICC), Vol. 5, pp. 3301-3306, April/May 2002.
[ppt]
- K. Seada, A. Helmy, "Fairness Evaluation Experiments for Multicast Congestion Control
Protocols", IEEE GLOBECOM, Vol. 3, pp. 2614-2618, November 2002. [Acceptance rate: 30%].
- K. Seada, S. Gupta, A. Helmy, "Systematic Evaluation of Multicast Congestion Control Protocols", SCS SPECTS Performance Evaluation of
Computer and Telecom, pp. 857-867, July 2002.
Refereed Posters
- N. Nahata, P. Pamu, S. Garg, A. Helmy, "Efficient Resource Discovery for Large Scale Ad hoc Networks using Contacts",
ACM SIGCOMM, Aug 2002.
- K. Dantu, S. Kapadia, R. Sinha, A. Helmy, "Modeling of Mobility-Induced Losses in MANETs (MILMAN)", ACM SIGCOMM, August
2002. [Acceptance rate: 30% of 79 submissions].
Prior to 2002
-
L. Breslau, D. Estrin, K. Fall, S. Floyd, J. Heidemann, A. Helmy, P.
Huang, S. McCanne, K. Varadhan, Y. Xu, H. Yu, "Advances in Network
Simulation", IEEE Computer, vol.33, No.5, pp. 59-67, May 2000. [Top 65
most cited papers in computer science in 2000 (Citeseer Jul '03)]
Refereed Conference Paper Proceedings
-
A. Helmy, "A Multicast-based Protocol for IP Mobility Support", ACM SIGCOMM
Second International
Workshop on Networked Group Communication (NGC), Palo Alto, CA, ACM press, pp. 49-58, November 2000. [Acceptance rate: 24% of 49 submissions].
[ppt]
- A. Helmy, S. Gupta, D. Estrin, A. Cerpa, Y. Yu,
"Systematic
Performance Evaluation of Multipoint Protocols", IFIP Formal
Description Techniques & Protocol Specification, Testing, and Verification
(FORTE/PSTV), pp. 187-202, October 2000. [Acceptance: 34% of 63].
-
S. Begum, M. Sharma, A. Helmy, S. Gupta, "Systematic Testing of Protocol Robustness:
Case Studies on Mobile IP and MARS", IEEE LCN, Florida, pp. 369-380, November 2000.
- A. Helmy, D. Estrin, S. Gupta, "Systematic Testing of Multicast Routing
Protocols: Analysis of
Forward and Backward Search Techniques", IEEE ICCCN (IC3N), pp. 590-597, October 2000.
- D. Estrin, M. Handley, A. Helmy, P. Huang, D. Thaler,
"A Dynamic Bootstrap Mechanism for Rendezvous-based Multicast Routing",
IEEE INFOCOM, Vol. 3, pp. 1090-1098, March 1999. [Acceptance rate: 30% of 600 submissions].
- A. Helmy, D. Estrin, S. Gupta, "Fault-oriented
Test Generation for
Multicast Routing Protocol Design", IFIP FORTE/PSTV, Paris, pp.
93-109, November 1998. [Acceptance rate: 30% of 85].
- A. Helmy, D. Estrin, "Simulation-based `STRESS' Testing Case Study: A
Multicast Routing Protocol", IEEE Sixth Int'l Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems
(MASCOTS),
Montreal, Canada, pp. 36-43, July 1998.
Internet Standards & RFCs
-
D. Estrin, D. Farinacci, A. Helmy, D. Thaler, S. Deering, V. Jacobson, M. Handley, C. Liu, P. Sharma, L. Wei,
"Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol
Specification",
RFCs 2362 of the Internet Engineering Task Force (IETF),
Inter-Domain Multicast Routing (IDMR), June 1998.
[RFC2362. Earlier version as RFC2117 in 1997]
- D. Estrin, D. Farinacci, A. Helmy, D. Thaler, S. Deering, V. Jacobson, M. Handley, C. Liu, P. Sharma, L. Wei, "Protocol
Independent Multicast (PIM): Motivation and Architecture", Proposed RFC of the IETF, Inter-Domain Multicast Routing (IDMR), October 1996.
- D. Estrin, D. Farinacci, A. Helmy, V. Jacobson, L. Wei, "Protocol Independent Multicast -
Dense Mode (PIM-DM):
Protocol Specification", Proposed IETF RFC for IDMR Internet Engineering Task Force (IETF), Inter-Domain Multicast Routing (IDMR), September
1996.
- A. Helmy, "Protocol Independent Multicast-Sparse Mode (PIM-SM): Implementation
Document", Internet-Draft (I-D) of the IDMR/MBone Deployment (Mboned), December 1996.
- A. Helmy, D. Thaler, D. Estrin, L. Wei, "Protocol Independent
Multicast-Sparse Mode (PIM-SM): Deployment Guidelines", Internet-Draft of the IETF/Mboned, December 1996.
- A. Helmy, D. Thaler, D. Estrin, "PIM Multicast Border Router (PMBR) specification for
connecting PIM-SM domains to a DVMRP Backbone", Internet-Draft of IDMR, September 1996.
- S. Deering, W. Fenner, D. Estrin, A. Helmy, D. Farinacci, L. Wei, M. Handley, V. Jacobson, D. Thaler, "Hierarchical PIM for
Inter-Domain Multicast Routing", Internet-Draft of IDMR, Dec 1995.
- S. Deering, W. Fenner, D. Estrin, A. Helmy, D. Farinacci, L. Wei, M. Handley, V. Jacobson, D. Thaler, "Interoperability Mechanisms for PIM and DVMRP", Internet-Draft of IDMR, Dec 1995.
[Note: This page is being updated. For more info check the C.V.
& the Old
publications page]