摘要： 介绍了一种应用于无线移动自组网的同步MAC 协议FPRP（Five-Phase Reservation Protocol）并提出了I-FPRP（Improved Five-PhaseReservation Protocol）。协议采用竞争的方式为节点预约业务时隙，是一种分布式的MAC 协议。协议通过5 次握手解决了“隐藏终端”问题并有效减小了业务资源的冲突概率。通过仿真，对FPRP 及I-FPRP 的性能进行了分析和比较。

关键词: 移动自组织网络；媒体接入技术；同步

Abstract: This paper introduces a synchronous MAC protocol——FPRP and present I-FPRP used in wireless mobile Ad Hoc network. FPRP andI-FPRP are, based on a contention mechanism for the reservation of information slot, distributed MAC protocol. The protocol resolves “hiddenterminal” problem and reduces effectively the collision probability of information resource by five-handshake. It also studies the performance ofFPRP and I-FPRP via simulation.

Key words: Mobile Ad Hoc network; MAC; Synchronization