A Cluster-Based Cooperative Data Transmission in VANETs

Vehicular Ad hoc Networks (VANETs) is designed to have the capability to communicate directly with other vehicles or indirectly using the existing infrastructure. Due to the high-speed mobility of the vehicles, it is a challenging issue to route the messages to their final destination. In this paper, we discuss three relationship of velocity, mobility, relative distance, then a combined Quality of Service (QoS) metric based on them is proposed to meet the clustering requirement. Thereafter, a QoS-aware clustering protocol consisting of cluster head election and multipoints relay selection algorithms is proposed for Vehicle-to-Vehicle (V2V) communication and implemented with ns-2 simulator. Simulation results have confirmed the analysis and expected performance in terms of cluster head duration, packet delivery ratio, etc.

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