中国邮电高校学报(英文) ›› 2009, Vol. 16 ›› Issue (5): 78-85.doi: 10.1016/S1005-8885(08)60272-1

• Networks • 上一篇    下一篇

Performance analysis of rate-adaptive cooperative MAC based
on wireless local area networks

张杨,徐洪锟,常永宇,杨大成,王亚峰   

  1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2008-10-28 修回日期:1900-01-01 出版日期:2009-10-30
  • 通讯作者: 张杨

Performance analysis of rate-adaptive cooperative MAC based
on wireless local area networks

ZHANG Yang , XU Hong-kun, CHANG Yong-yu, YANG Da-cheng, WANG Ya-feng   

  1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2008-10-28 Revised:1900-01-01 Online:2009-10-30
  • Contact: ZHANG Yang

摘要:

Bi-dimensional Markov chain model based on cooperative medium access control (MAC) of wireless local area networks (WLAN) is considered to reflect system performance accurately. Two basic factors that affect the analysis results are station retry limits and non-saturated transmit probability. A uniform solution considering both factors is proposed. To prove the theoretical analysis, a cooperative MAC (CoopMAC) topology is established and the simulation model is enhanced by changing the cooperative table to the nodes’ memory with more information added. Meanwhile, the three-way handshake scheme is modified and a handshake threshold is set based on the packet size. Simulation results show the performance analytical model is accurate, and the rate-adaptive cooperative MAC protocol significantly improves the network performance in terms of non-saturated system throughput and delay.

关键词:

performance;analysis,;cooperative;MAC,;bi-dimensional;Markov;Chain,;non-saturated;transmit,;station;retry;limit

Abstract:

Bi-dimensional Markov chain model based on cooperative medium access control (MAC) of wireless local area networks (WLAN) is considered to reflect system performance accurately. Two basic factors that affect the analysis results are station retry limits and non-saturated transmit probability. A uniform solution considering both factors is proposed. To prove the theoretical analysis, a cooperative MAC (CoopMAC) topology is established and the simulation model is enhanced by changing the cooperative table to the nodes’ memory with more information added. Meanwhile, the three-way handshake scheme is modified and a handshake threshold is set based on the packet size. Simulation results show the performance analytical model is accurate, and the rate-adaptive cooperative MAC protocol significantly improves the network performance in terms of non-saturated system throughput and delay.

Key words:

performance analysis;cooperative MAC;bi-dimensional Markov Chain;non-saturated transmit;station retry limit