计算机工程 ›› 2010, Vol. 36 ›› Issue (1): 107-109.doi: 10.3969/j.issn.1000-3428.2010.01.038

• 网络与通信 • 上一篇    下一篇

基于GM(1,1)预测的MANET拥塞控制

魏姝杰,白光伟,沈 航,靳 勇   

  1. (南京工业大学计算机科学与技术系,南京 210009)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-01-05 发布日期:2010-01-05

MANET Congestion Control Based on GM(1,1) Prediction

WEI Shu-jie, BAI Guang-wei, SHEN Hang, JIN Yong   

  1. (Department of Computer Science and Technology, Nanjing University of Technology, Nanjing 210009)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-01-05 Published:2010-01-05

摘要: 提出一种用于无线移动Ad hoc网络的TCP自适应拥塞控制机制(TCP_Acc),在给定数据链路层统计带宽的情况下,使用GM(1,1)模型预测未来的网络状态,并根据预测得到的带宽信息自适应地调节拥塞窗口。仿真实验结果表明,该机制能够有效地改进无线移动Ad hoc网络中实时TCP通信的可靠性和无线实时通信的服务质量,如较低的丢包率以及端到端延迟等。

关键词: 带宽预测, 拥塞窗口, 跨层设计, GM(1,1)模型

Abstract: An adaptive congestion control mechanism called TCP_Acc for wireless Mobile Ad hoc NETwork(MANET) is proposed. For a given statistical bandwidth at the data link layer, this mechanism uses a GM(1,1) model to predict the network conditions in the future, and adjusts the congestion window adaptively, according to the predicted bandwidth. Simulations experimental results demonstrate this mechanism can improve significantly and effectively the TCP reliability and QoS of real-time communication over wireless MANET, in terms of lower packet loss rate, end-to-end delay, and so on.

Key words: bandwidth prediction, congestion window, cross-layer design, GM(1,1) model

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