Danger-Aware Resource Management In V2X Network

IEEE 802.11p is one of the key technologies that enable dedicated short-range communications (DSRC) in intelligent transportation system (ITS) for safety on the road. The main challenge in vehicular communication is the large amount of data to be processed. As vehicle density and velocity increases, the data to be transmitted also increases. We proposed a protocol that reduces the number of data to be transmitted at every second according to the level of danger that the transmitter vehicle experiences. The proposed protocol measures inter-vehicle distance, as the representative of the danger of a vehicle, to determine the priority for transmission. Our results show that this prioritization of transmissions directly reduces the number of transmitter stations at a time, and hence the results in higher performance in terms of key metrics i.e., packet deliver rate (PDR), throughput, delay, probabilities of channel busy and collision. INDEX WORDS: V2X; IEEE 802.11p; DSRC; Packet congestion; Danger-based packet filterin