Throughput Optimization of Broadcasting Protocol in Vehicular Ad hoc Networks

摘要

It is important to maximize the saturated throughput of VANET broadcasting protocol for fully utilizing wireless channel. The saturated throughput of broadcasting protocol is related to contention windows valve and contending nodes in the networks. We propose a discrete markov analytic model for performance evaluation broadcasting protocol under saturation condition for VANET, and analysis the relationship between the number of vehicle nodes and the contention windows. So, the analysis results show suitable contention window value can optimize the throughput of broadcasting protocol of VANET. The results show that the proposed analytic model and optimization contention windows value can enhance the system throughput.