Performance Optimization of a Contention Based Broadcasting Algorithm in VANETs

Sharing emergency messages amongst vehicles on the road can greatly reduce traffic accidents. In Vehicular Ad Hoc Networks (VANETs) to share these emergency messages, fast and reliable message dissemination is the key objective in a highly dynamic VANET environment. This research proposes a novel broadcasting protocol to achieve these goals by introducing handshake-less broadcasting, ACK Decoupling and efficient collision resolution mechanism. A key contribution of this paper is to analyze and optimize the broadcasting algorithm using thorough mathematical modeling with extensive simulations. With the suggested optimization process, the message propagation delay can be significantly reduced.