5次握手机制(Five-Phase Reservation Protocol,FPRP)是无线自组织网中常用的信道接入控制(Medium Access Control,MAC)时隙分配协议,通过随机竞争接入为广播业务预约无冲突的信息时隙,利用信噪比来判断通信链路是否可靠、增大节点发射功率、增加比特信息、消除非孤立死锁节点、简化协议的方法进行改进.仿真实验结果表明,改进的结果与实际的仿真结果一致.
The five-phase reservation pmtocol(FPRP) is a slot assignment protocol for MAC which is com- monly used in wireless Ad Hoc networks. It appoints conflict-free information slot for broadcasting services by random contention-based(CB) access. This paper improves the protocol by using SNR to judge the reli- ability of communication links, enhancing the transmitting power of nodes, increasing bit messages, eliminat- ing non-isolatod deadlock nodes, and simplifying the protocol. The simulation results show that the result of improvement is consistent with the actual simulation results.