计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (22): 107-109.DOI: 10.3778/j.issn.1002-8331.2010.22.032

• 网络、通信、安全 • 上一篇    下一篇

基于IEEE802.11自适应调度的QoS增强机制研究

殷爱菡,钱飞鹏,黄昌胜   

  1. 华东交通大学 信息工程学院,南昌 330013
  • 收稿日期:2009-03-18 修回日期:2009-05-12 出版日期:2010-08-01 发布日期:2010-08-01
  • 通讯作者: 殷爱菡

Adaptive scheduling QoS enhancement mechanism research based on IEEE802.11

YIN Ai-han,QIAN Fei-peng,HUANG Chang-sheng   

  1. School of Information Engineering,East China Jiaotong University,Nanchang 330013,China
  • Received:2009-03-18 Revised:2009-05-12 Online:2010-08-01 Published:2010-08-01
  • Contact: YIN Ai-han

摘要: 针对IEEE802.11DCF的QoS问题,提出一种增强型自适应调度的分布式EASDCF机制,并通过最大竞争窗口和重传次数进行区分服务,以较高的概率保证了实时业务优先访问信道,并使得丢包率敏感的业务得到可靠保障。仿真结果表明EASDCF所采用的分级策略具有很好的效果,使无线局域网整体的吞吐性能得到提升,使资源得到更加合理的利用。

Abstract: For the QoS problem of IEEE802.11DCF,an enhanced adaptive scheduling distributed EASDCF mechanism is proposed.This paper provides differentiated services through the largest contention window and retry limit,guarantees the real-time service prior access channel with higher probability,also makes packet drop rate sensitive service to be a reliable guarantee.Simulation results show EASDCF classification strategy has the very good effect.So that the performance of overall throughput in wireless local area network has enhanced,and enables the resources to obtain a more reasonable use.

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