MARCHANG, Jims, SANDERS, Benjamin and JOY, Dany (2018). Adaptive V2V routing with RSUs and gateway support to enhance network performance in VANET. In: CHOWDHURY, K. R., DI FELICE, M., MATTA, A. and SHENG, B., (eds.) Wired/Wireless Internet Communications: 16th IFIP WG 6.2 international conference 2018 proceedings. Lecture Notes in Computer Science: Computer Communication Networks and Telecommunications (10866). Springer, 293-310.
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Marchang-AdaptiveV2VRouteringWithRSUs(AM).pdf - Accepted Version
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Marchang-AdaptiveV2VRouteringWithRSUs(AM).pdf - Accepted Version
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Abstract
In a VANET communication, link stability can neither be guaranteed nor make
the established route link permanent due to the dynamic nature of the network. In V2V communication
without the involvement of any infrastructural units like RSU access points or gateway,
the probability of successful link establishment decreases when vehicle’s speed varies, red traffic
light increases, cross-road increases and finally when the density of the running vehicles is sparse.
To ensure route establishment and control route request broadcast in a sparse VANET with crossroad
layout, RSUs are used in this paper for route discovery within one gateway zone when a
next hop vehicle to relay the route request packet is unavailable. RSUs are static but the vehicles
are dynamic in nature, so relying completely on RSU for forwarding data is not recommended
because chances of link failure, link re-establishment, and handoff overhead will be high. So, in
this paper, RSUs and Gateways are evoked for route discovery and data forwarding only when
necessary. Moreover, a local route repair is attempted in this paper when the path length is high
to reduce or avoid loss of buffered packets along the route and to maintain a more stable link
with the help of RSUs.
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