计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (36): 122-125.DOI: 10.3778/j.issn.1002-8331.2008.36.034

• 网络、通信、安全 • 上一篇    下一篇

基于ns-2的快速冲突分解算法实现及性能分析

宋 军,金艳华   

  1. 重庆交通大学 信息科学与工程学院,重庆 400074
  • 收稿日期:2008-08-15 修回日期:2008-11-03 出版日期:2008-12-21 发布日期:2008-12-21
  • 通讯作者: 宋 军

Fast collision resolution algorithm implementatlon and performance analysis based on ns-2

SONG Jun,JIN Yan-hua   

  1. College of Information Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2008-08-15 Revised:2008-11-03 Online:2008-12-21 Published:2008-12-21
  • Contact: SONG Jun

摘要: 分析了IEE802.11无线局域网MAC层快速冲突分解算法,修改和扩展了ns-2网络仿真软件的IEE802.11无线局域网仿真模块,实现了ns-2对快速冲突分解算法的仿真。仿真结果表明,快速冲突分解算法提高了网络的平均吞吐量、减小了平均时延,但网络的时延抖动和公平性却更加恶化。

Abstract: Analyzed the Fast Collision Resolution(FCR) algorithm of MAC layer in IEEE802.11 WLAN.Modified and extended the IEEE802.11 simulation module in ns-2.Implemented the simulation of FCR algorithm in ns-2.Simulation results indicate,the FCR algorithm enhances the average throughput and cuts down the average delay,but degrades the jitter and fairness of IEEE802.11 WLAN.