In this paper, a joint vehicle-vehicle/vehicle-roadside communication protocol is proposed for cooperative collision avoiding in Vehicular Ad Hoc Networks (VANETs). In this protocol, emergency warning messages are simultaneously transmitted via Vehicle-to-Vehicle (V2V) and Vehicle-to-Roadside (V2R) communications in order to achieve multipath diversity routing. In addition, to further improve communication reliability and achieve low-latency, aMulti-Channel (MC) technique based on two non-overlapping channels for Vehicle-Vehicle (V2V ) and V2R (or R2V) is proposed. The simulation results demonstrate that the proposed joint V2V/V2R (R2V) communication protocol is capable of improving the message delivery ratio and obtaining lowlatency, which are very important merits for highway traffic safety.
EURASIP Journal on Advances in Signal Processing
IEEE 892.11p, Vehicular ad hoc netwroks, highway safety, Vehicle-Vehicle, Vehicle-Roadside, AODV