Reliable and Efficient Message Dissemination by Adaptive Relay Selection in Vehicular Networks

Abstract

Successful message reception of an emergency event is the key objective of emergency message dissemination protocols in vehicular networks. This research paper proposes a new multi-hop data dissemination protocol for relay node selection for emergency events in vehicular networks. The proposed protocol is dynamically adaptive to vehicular density and link quality during the data dissemination process. Thus making it a viable solution for both practical scenarios. The protocol is evaluated by considering different vehicle density and network size. Simulation outputs confirm considerable performance improvements over existing distance-dependent protocols. In urban traffic density scenarios, over 20% improvements are achieved in delay performance to the furthest distance-based protocol with increased reliability and scalability in vehicular networks.