一种长距离无线网络媒体接入控制协议及性能分析  

Performance Analysis of a MAC Protocol Suitable for Long Distance Wireless Network

作　　者：卓永宁[1] 严少虎[1] 吴诗其[1] 

机构地区：[1]电子科技大学卫星通信技术研究中心,四川成都610054

出　　处：《计算机应用研究》2005年第8期201-203,共3页Application Research of Computers

基　　金：国家自然科学基金资助(60372013;603905403)

摘　　要：基于预约多址PRMA协议提出一种改进的MAC层协议PRMAHSCR,以减少长时延带来的数据包信道竞争,提高实时业务的服务质量。给出了系统模型,对协议进行了理论分析并通过仿真研究了协议的接入阻塞率和丢包率性能,结果表明该协议能够有效传输突发实时业务,适应长距离网络的传输特性。Based on packet reservation multiple access protocol (PRMA),we propose a new MAC protocol named PRMA-HSCR to decrease the channel competition among packets, then increase the quality of service for the real time traffic service. We give the system model and perform the theoretic analysis, and conclude the protocol’s performance of the packet dropping probability and the throughput by simulation. The result indicate that the protocol deliver the burst real time traffic effectively and accommodate the characteristic of long distance networks.

关 键 词：媒体控制 PRMA 分组预约 性能 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]