DMCA
for Video Communications in Ad Hoc Networks (2006)
BibTeX
@MISC{Wang06forvideo,
author = {Xiaojun Wang and Anil Vullikanti Co-chair and Godmar Back and Shiwen Mao and Xiaojun Wang},
title = {for Video Communications in Ad Hoc Networks},
year = {2006}
}
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Abstract
Video communication is an important application in wireless ad hoc network environment. Although current off-the-shelf video communication software would work for ad hoc network operating under stable conditions (e.g., extremely low link and node failures), video communications for ad hoc network operating under extreme conditions remain a challenging problem. This is because traditional video codec, either single steam or layered video, requires at least one relatively stable path between source and destination nodes. Recent advances in multiple description (MD) video coding have opened up new possibilities to offer video communications over ad hoc networks. In this thesis, we perform a systematic study on MD video for ad hoc networks. The theoretical foundation of this research is based on an application-centric approach to formulate a cross-layer multipath routing problem that minimizes the application layer video distortion. The solution procedure to this complex optimization problem is based on the so-called Genetic Algorithm (GA). The theoretical results have been documented in [7] and will be reviewed in Chapter 2. Although the theoretical foundation for MD video over dynamic ad hoc networks has been laid,
Keyphrases
ad hoc network video communication theoretical foundation md video wireless ad hoc network environment challenging problem new possibility systematic study destination node current off-the-shelf video communication software application-centric approach important application low link complex optimization problem stable condition extreme condition application layer video distortion multiple description stable path dynamic ad hoc network recent advance single steam node failure solution procedure traditional video codec theoretical result cross-layer multipath routing problem so-called genetic algorithm
