北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (1): 81-84.doi: 10.13190/jbupt.201201.81.zhaobh

• 研究报告 • 上一篇    下一篇

无线局域网络的可靠多播差错控制协议

赵保华,池信泽,李濛,周颢
  

  1. 1.中国科学技术大学 计算机科学与技术学院,合肥 230027 2.北京邮电大学 网络与交换技术国家重点实验室,北京 100876 3.中国科学技术大学 安徽省计算与通信软件重点实验室,合肥 230027
  • 收稿日期:2011-10-18 修回日期:2011-10-20 出版日期:2012-02-28 发布日期:2012-01-05
  • 通讯作者: 赵保华 E-mail:bhzhao@ustc.edu.cn;
  • 作者简介:赵保华(1947-),男,教授,E-mail:bhzhao@ustc.edu.cn
  • 基金资助:

    国家自然科学基金项目(60872009);国家高技术研究发展计划项目(2001AA01Z148);安徽高校省级自然科学研究计划重点项目(ZD2008005-2,ZD200904)

A New Reliable Multicast Control Protocol Used in Wireless Local Area Networks

ZHAO Bao-hua,CHI Xin-ze,LI Meng,ZHOU Hao
  

  1. 1.School of Computer Science and Technology, University of Science and Technology of China, Hefei  230027, China; 2.State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876, China; 3.Province Key Laboratory of Software in Computing and Communication,University of Science and Technology of China,Hefei 230027,China
  • Received:2011-10-18 Revised:2011-10-20 Online:2012-02-28 Published:2012-01-05

摘要:

为了解决现有无线局域网中媒体访问控制层协议多播时效率较低的问题,在扩展隐式媒体访问控制层确认帧协议基础上,提出了一种无线局域网下的可靠多播差错控制协议——确定时间的随机扩展隐式媒体访问控制层确认帧协议.该协议通过引入领导者(Leader)和减少纠错时多播允许发送帧数量,降低了发送数据帧时所需占用信道的时间,提高了用于数据传输的实际时间开销占整个多播过程的时间比例.仿真实验结果表明,新协议有效地提高了多播的总体性能,显著增加了网络的实际吞吐量.

关键词: 无线局域网, 媒体访问控制层, 可靠多播差错控制协议, 多播控制帧

Abstract:

In order to solve the problem that the existing medium access control(MAC) layer protocols in wireless local area networks(WLAN) are less efficient, a fixed time and random extended implicit MAC Acknowledgment protocol is proposed on basis of extended implicit MAC acknowledgment (EIA). Since the proposed protocol brings in the leader and reduces the number of the multicast clear to send  frames, the average channel holding time of transmitting data is reduced and the ratio of the real data transmission cost in entire multicast stage is increased. Simulations show that the proposed fixed time random extended implicit MAC acknwledgment  protocol effectively improves the overall performance of multicast in WLAN and effectively increases the network goodput compared with EIA.

Key words: wireless local area networks, medium access control layer, reliable multicast control protocol, multicast control frames

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