Mobile Database Design, Access, & Transactions ❯ Wireless and Mobile Video Delivery

Overview

This project proposes a conceptual model for describing the network conditions under which multimedia data is being transmitted, as well as the modality of the mobile device which recieves the video data. An architecture is presented that deals with adaptation of multimedia data to such wireless network conditions and device capabilites, under constraints imposed by user preferences and multimedia content, to ensure effective , meaningful, and acceptable delivery of video data to mobile users. Careful application of a combination of off-line and on-line reductions to the video streams is exploited to achieve this adaptability. The project also uses the concept of descriptor schemes for describing the content of video data, and its applicability to different kinds of reductions.

Objective

The overall self describing sensor network approach is based on the need to provide a scalable, plug and play, smart sensor network that is more flexible and maintainable. The approach leverages both mature and new technologies and standards to develop the system architecture composed of the sensor platform architecture, sensor network hierarchy, and associated software framework. The main approach consists of empowering the sensor network by using surrogate code located on the sensor node to allow interpretation of the data and sensor node control. Our sensor network hardware platform includes RF communications, EEPROM for data storage, EEPROM for surrogate storage, and microprocessor for communication and data manipulation.

People

Dr. Sumi Helal
Latha Sampath
Kevin Birkett

Publications

• A. Helal, L. Sampath, K. Birkett, and J. Hammer, "Adaptive Delivery of Video Data over Wireless and Mobile Environments," the John Wiley & Sons International Journal on Wireless Communications and Mobile Computing (pdf).

• L. Sampath L, A. Helal, J. Smith, "UMA-based Wireless and Mobile Video Delivery Architecture," Proceedings of the SPIE Voice, Video and Data Communications Symposium, November 2000 (pdf).