Structured Peer-to-Peer Real Time Video Transmission over Vehicular Ad Hoc Networks

Authors:
Sergio Machado;Javier Ozón;Alberto J. González;Kayhan Zrar Ghafoor
Affiliations:
Department of Telematic Engineering, Technical University of Catalonia, Castelldefels, Spain 08860;Department of Telematic Engineering, Technical University of Catalonia, Castelldefels, Spain 08860;NicePeopleAtWork, Barcelona, Spain 08005;Faculty of Engineering, University of Koya, Koya, Region-Iraq KOY45
Venue:
Mobile Networks and Applications
Year:
2013

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Abstract

Video communication over Vehicular Ad Hoc Networks (VANET) has several applications such as road safety, commercial advertisements and on-road entertainment. In this paper we present a structured peer-to-peer (P2P) network designed for the distribution of live-content, with low bandwidth consumption, within a VANET. This P2P network is modelled using a media distribution graph. The implementation of a structured network allows a peer to schedule consecutive data chunks produced by the media source by means of a scheduling algorithm. In our analysis we obtain a bound for the maximum delay between the media source and any of the peers of the network and the buffer size needed to allow consecutive scheduling. We study a type of media distribution graph and we calculate its order and diameter, which means that under stable conditions we can ensure certain quality-of-service parameters. The results of simulation over NS2 show the fitness of the mathematical analysis.