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应用科学学报 ›› 2011, Vol. 29 ›› Issue (6): 559-564.doi: 10.3969/j.issn.0255-8297.2011.06.002

• 通信工程 • 上一篇    下一篇

基于IEEE 802.11协议的MAC层协同组播策略

宋留斌1， 徐友云1;2， 谢威2， 余江1   

  1. 1. 解放军理工大学通信工程学院，南京210007
    2. 上海交通大学电子工程系，上海200240
  • 收稿日期:2010-09-27 修回日期:2011-05-25 出版日期:2011-11-30 发布日期:2011-11-25
  • 通信作者: 通信作者：徐友云，教授，博导，研究方向：认知无线电、Turbo编译码、协同通信等，E-mail: yyxu@vip.sina.com
  • 作者简介:通信作者：徐友云，教授，博导，研究方向：认知无线电、Turbo编译码、协同通信等，E-mail: yyxu@vip.sina.com
  • 基金资助:

    国家“863”高技术研究发展计划基金(No. 2009AA01Z249)；新一代宽带无线移动通信网科技重大专项基金(No.2010ZX03003-003-01)资助

MAC Layer Cooperative Multicast Strategy Based on IEEE 802.11 Protocol

SONG Liu-bin1, XU You-yun1;2, XIE Wei2, YU Jiang1   

  1. 1. Institute of Communication Engineering, PLA University of Science and Technology, Nanjing 210007, China
    2. Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2010-09-27 Revised:2011-05-25 Online:2011-11-30 Published:2011-11-25

PDF

2748

被引次数

2

摘要：

摘要： 提出一种基于IEEE 802.11协议的MAC(media access control)层协同组播调度策略，利用正确接收数据的组内用户充当临时中继，根据地理位置信息选择优秀的转发节点来协同传输组播数据. 分析了所提出的组播策略的中断概率和吞吐量性能，并给出了使用NS2(Network Simulator 2)工具的仿真方法. 仿真结果表明，相比于原有的MAC层协议，该策略提升了组播的吞吐量，降低了组播用户的丢包率.

关键词: 无线组播, 协同通信, Network Simulator 2, IEEE 802.11协议

Abstract:

In this paper, we propose a MAC layer cooperative multicast strategy based on the IEEE 802.11 protocol, in which correctly received data can serve as a temporary relay if the user locates a right position. We analyze the outage probability and throughput performance of the proposed strategy, and present a simulation method in NS2. Simulation results show that the new strategy has a better throughput and lower packet loss performance compared to the original MAC protocol.

Key words: wireless multicast, cooperative communication, Network Simulator 2, IEEE 802.11 protocal

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