上海大学学报(自然科学版) ›› 2010, Vol. 16 ›› Issue (6): 597-602.doi: 1007-2861.2010.06.009

• 通信与信息工程 • 上一篇    下一篇

一种适用于无线网络的基于速率的端到端拥塞控制算法

  

  1. (1.上海大学 特种光纤与光接入网省部共建重点实验室,上海 200072;
    2.上海交通大学 电子信息与电气工程学院,上海 200240; 3.埃夫里大学LRSM实验室,法国 埃夫里 91025)
  • 收稿日期:2009-05-20 出版日期:2010-12-21 发布日期:2010-12-21
  • 作者简介:金彦亮(1973~),男,副教授,研究方向为移动通信、Ad hoc网络、WLAN和传感器网络. Email:jinyanliang@staff.shu.edu.cn
  • 基金资助:

    上海市重点学科建设资助项目(S30108);上海市科委重点实验室资助项目(08DZ2231100);上海市教委创新基金资助项目(09YZ33);上海市科委重点资助项目(08220510900)

Rate-Based End-to-End Congestion Control in Wireless Networks

  1. (1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China;
    2. School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    3. LRSM Research Laboratory, University of Evry, Evry 91025, France)
  • Received:2009-05-20 Online:2010-12-21 Published:2010-12-21

摘要:

高丢包率和有限带宽是无线传输系统的主要特点,同时也是决定无线多媒体网络设计成败的关键因素.提出一种适用于无线网络的可扩展拥塞控制算法(scalable congestion control algorithm for wireless networks,SCCW),该算法可以在无线网络中使用多个业务流,且在拥塞丢包和随机丢包共存的情况下,具有很好的可扩展性.仿真结果表明,该算法比非可扩展性拥塞控制算法,如加法增加乘法减少(additive increase multiplicative decrease,AIMD)、平方根计算(square root calculations,SQRT)、倒数增减加性减小(inverse increase additive decrease, IIAD)等,具有更低的数据丢包率.

关键词: 无线传输系统;拥塞控制算法;可扩展无线网络拥塞控制算法

Abstract:

 High packet loss rate and limited bandwidth are two features that present the biggest challenges in successful design of multimedia wireless networks. A scalable congestion control algorithm for wireless networks (SCCW) is proposed in this paper. The technique has excellent scalability when a large number of flows are used, and when random and congestion losses coexist in a wireless network. Simulation results show that SCCW has better performance than additive increase multiplicative decrease (AIMD) algorithm, square root calculations (SQRT) algorithm, and inverse increase additive decrease (IIAD) algorithm.

Key words: wireless transmission system; congestion control algorithm; scalable congestion control algorithm for wireless networks(SCCW)

中图分类号: