首页 | 本学科首页   官方微博 | 高级检索  
     

Ad Hoc中一种改进后退机制的基于多包接收的MAC算法
引用本文:李洁,杨震. Ad Hoc中一种改进后退机制的基于多包接收的MAC算法[J]. 信息技术, 2006, 30(9): 8-11
作者姓名:李洁  杨震
作者单位:南京邮电大学通信与信息工程学院,南京,210003
基金项目:国家高技术研究发展计划(863计划)
摘    要:物理层多包接收技术的发展给利用物理层多包接收能力的媒体接入控制(MAC)协议的设计带来了挑战。IEEE802.11 DCF是目前WIAN最成熟的分布式MAC协议之一,对其在多包接收模型下进行性能改善将有很大的应用价值。在物理层具有多包接收能力的基础上,提出了一种改进的802.11 DCF协议,并将该协议应用于现有的基于802.11 DCF的多包接收MAC算法(MDCF),理论分析和NS-2仿真实验结果表明,该算法与IEEE 802.11 DCF和MDCF相比,在网络吞吐量和时延性能方面有很大的改善。

关 键 词:媒体接入控制  多包接收  后退机制  吞吐量
文章编号:1009-2552(2006)09-0008-03
修稿时间:2006-02-17

An improved medium access control algorithm based on multi-packet reception in Ad Hoc network
LI Jie,YANG Zhen. An improved medium access control algorithm based on multi-packet reception in Ad Hoc network[J]. Information Technology, 2006, 30(9): 8-11
Authors:LI Jie  YANG Zhen
Abstract:The improvement of the physical layer's multi-packet reception ability introduces great challenges to MAC protocol design.Since IEEE 802.11 DCF is one of the most widely used protocols in WLAN,impro-(ving) its performance based on the MPR model could have widespread benefits.In this paper,based on IEEE 802.11 DCF and MDCF,a back-off time modified MAC algorithm based on MPR is proposed.Compared with IEEE 802.11 MAC protocol and MDCF,the simulation results under NS-2 show that the new algorithm works well in throughput performances.
Keywords:MAC  MPR  back-off  throughput
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号