%0 Journal Article
%T Performance Analysis of a Novel CRMA Protocol Based on Runtime Optimization<br>一种基于实时优化思想的多址接入协议性能分析
%A He Hong
%A Li Jian-dong
%A Sheng Min
%A <br>何宏
%A 李建东
%A 盛敏
%J 电子与信息学报
%D 2006
%I 
%X To improve the Binary Exponential Backoff algorithm (BEB)'s channel throughput of IEEE 802.11 protocol, a novel Collision Reduced Multiple Access protocol (CRMA) is proposed based on slow contention window decrease mechanism and runtime optimization method. By integrating slow CW decrease scheme with runtime optimization mechanism to effectively solve no state information indicating the actual contention level of BEB algorithm after a successful transmission, CRMA protocol can record the current backoff stage of the latest successful transmission under the overload network precisely. As a result, it decreases the collision times and improve the channel utilization. The CRMA protocol could be compatible completely with pre-existed IEEE 802.11 protocol, and it is represented by its simplicity, integrability, complete distribution and adaptiveness. The performance analysis and numerical results show that its performance is much better than the IEEE 802.11 protocol and other recent multiple access mechanisms because of the accurate estimation of congested level before transmission and the effective record of backoff stage after a successive transmission.
%K IEEE 802
%K 11<br>无线局域网
%K 多址接入协议
%K 退避算法
%K 性能分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=2325C37C21B4181E&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=94C357A881DFC066&sid=4A2C67480A6B9F95&eid=725C082EB6FD280F&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=13