一种适用于无线移动Ad Hoc网络的分布式并行MAC协议

众所周知，无线系统是带宽受限系统，信道分配算法至关重要。本文研究了Ad Hoc网络的MAC层协议，通过对无线令牌环协议WTRP进行改进，提出了一种新的具有QOS保障的无竞争的分布式并行MAC协议，即基于动态优先级的缓冲区状态控制协议（DP—BSCP）。仿真结果分析表明，该协议的平均排队等待延迟和平均等待队列长度均比WTRP有很大降低；对不同优先级的数据包均有良好的适应性，满足不同优先级的性能需求。从而使系统的稳定性大大增强，更加适用于多业务的综合服务系统。

A Distributed & Parallel MAC Protocol for Mobile Ad Hoc Networks

As we know that the wireless system is a band-limited system,so the channel allocation algorithm is very im- portant. After studing some kinds of MAC protocol of Ad hoc network and by modifying the protocol of WTRP,a new uncontested distributed parallel MAC protocol that can provide MAC QoS guarantees for Ad hoc network is presented, that is Distributed & Parallel Protocol based on Buffer Status Control(DP-BSCP), which is up to dynamic PRI of the queues. The simulation results show that the average delay and average queue length in DP BSCP system are much more lower than those in WTRP system and also show that it can meet the demand of the performance asked by the varied PRI data packets, so the stability is highly enhanced. As a result,it is a better MAC protocol for the integrated services.