Ad Hoc网络中隐藏和暴露终端问题的分析与研究  

Analysis and Research on Hidden Terminal and Exposed Terminal Problems in Ad Hoc Networks

作　　者：兰丽[1] 单志龙[1] 

机构地区：[1]华南师范大学计算机学院,广州510631

出　　处：《现代计算机》2009年第4期4-8,共5页Modern Computer

基　　金：国家自然科学基金(No.10771080);广东省博士启动基金(No.06300907)

摘　　要：隐藏终端和暴露终端问题是Ad Hoc网络MAC层的固有问题,成为制约网络性能的关键因素。阐述Ad Hoc网络中存在的隐藏终端和暴露终端问题,分析目前采用的解决隐藏终端和暴露终端问题的若干方法,重点对比分析基于802.11协议的、根据节点当前所处状态和数据包大小情况、让隐藏终断和暴露终端参与同时并行通信的协议,并提出改进措施。Hidden terminal problems and exposed terminal problems are the inherent problems in MAC layer in Ad Hoc networks, and becomes the vital factor of limiting the performance of the network. Describes the problems of hidden terminal and exposed terminal, analyzes the ways of solving this problems, contrast several protocols, which based on IEEE 802.11 protocol, taking into account of the nodes＇ states and packets＇ sizes, making the hidden terminal and exposed terminal join in the concurrent communication, proposes some improved measures.

关 键 词：AD HOC网络 隐藏终端 暴露终端 

分 类 号：TN929.5[电子电信—通信与信息系统]