A reactive solution with a redundancy-based error correction mechanism for video dissemination over vehicular ad hoc networks

Authors:
Cristiano Rezende;Richard W. Pazzi;Azzedine Boukerche
Affiliations:
University of Ottawa, Ottawa, ON, Canada;University of Ontario Institute of Technology, Oshawa, ON, Canada;University of Ottawa, Ottawa, ON, Canada
Venue:
Proceedings of the 15th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Year:
2012

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A receiver-based video dissemination solution for vehicular networks with content transmissions decoupled from relay node selection

Ad Hoc Networks

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Abstract

Vehicular Ad Hoc Networks (VANETs) are challenging environments for video dissemination since stringent requirements have to be satisfied. We have designed a protocol that is reactive to the dynamic topology of VANETs, adaptive to the non-uniformity of vehicles density throughout a city or a highway and that deliver packets in time for the playback of video frames. The Reactive, Density-Aware and Timely Dissemination protocol (REACT-DIS) was able to achieve low end-to-end latency with an acceptable number of transmissions. In order to meet delivery ratio requirements, we have used Network Coding to implement an additional redundancy control aimed at handling packet loss. By this manner, lower rates of frame loss were achieved which fulfill delivery ratios requirements for video-streaming while maintaining suitable levels of end-to-end latency and overhead.