多跳移动分组无线网络的吞吐率分析  

The throughput analysis of the Multihop and mobile packet wireless network

作　　者：刘凯[1] 李建东[1] 章欣 

机构地区：[1]西安电子科技大学信息科学研究所,陕西西安710071 [2]陕西医专,陕西西安710068

出　　处：《西安电子科技大学学报》2000年第1期70-75,共6页Journal of Xidian University

基　　金：国家自然科学基金资助项目 !( 6 9872 0 2 8);综合业务网及关键技术国家重点实验室资助项目

摘　　要：提出了一种应用IEEE80211RTS/CTS协议的多跳、移动的分组无线网络,分析了它的系统容量,并与时隙ALOHA,CSMA多址接入协议下的网络性能作了比较.最小ID号的分群算法可以通过较少的控制信息快速得到顽健的分群网络结构,选用合适的MAC协议能有效地利用多信道.两跳的分群结构使得在群内使用CSMA仍无法避免隐藏终端问题.RTS/CTS接入协议大大减小了隐藏终端间的分组碰撞时间,从而提高了网络性能.A multihop and mobile packet wireless network with IEEE 802 11 RTS/CTS multiple access protocol is presented. A comparison in throughput among slot ALOHA , carrier sense multiple access ( CSMA ) and it is made. In a packet wireless network, the robust clustering network structure can be achieved rapidly by the minimal identifier (ID) clustering algorithm with lower control information, and it is efficient to take advantage of multiple channels for the suitable medium access control (MAC) protocol. But it is unable to avoid the hidden terminal problem of CSMA due to two hop clustering structure in each cluster. However, the Request To Send (RTS) and Clear To Send (CTS) protocol can decrease the collision time of packet greatly so as to improve the network performance.

关 键 词：多跳 分组无线网络 通信网 吞吐率 

分 类 号：TN913.2[电子电信—通信与信息系统]