• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2011, Vol. 33 ›› Issue (2): 7-11.doi: 10.3969/j.issn.1007130X.2011.

• 论文 • 上一篇    下一篇

基于价格的拥塞控制模型扩展

彭立宏,张鹤颖,姜新文,窦文华   

  1. (国防科学技术大学计算机学院,湖南 长沙410073)
  • 收稿日期:2009-01-07 修回日期:2009-04-30 出版日期:2011-02-25 发布日期:2011-02-25
  • 通讯作者: 彭立宏
  • 作者简介:彭立宏(1972),女,湖南衡山人,博士生,研究方向为计算机网络拥塞控制。张鹤颖(1976),女,陕西西安人,博士,研究方向为计算机网络。
  • 基金资助:

    国家自然科学基金资助项目(60603064)

Development of a PriceBased Congestion Control Model

PENG Lihong,ZHANG Heying,JIANG Xinwen,DOU Wenhua   

  1. (School of Computer Science,National University of Defense Technology,Changsha 410073,China)
  • Received:2009-01-07 Revised:2009-04-30 Online:2011-02-25 Published:2011-02-25

摘要:

基于价格的拥塞控制模型将网络拥塞控制问题抽象为聚合效用最大化的优化问题,已经成为拥塞控制机制设计和分析的一般框架。然而简化的线性模型与现实网络环境有一定差距,不能准确有效地指导新协议的设计与分析。因此,近年来研究人员正试图结合新的技术和应用,扩展完善基于价格的模型,建立更为准确有效的模型来反映现实的网络环境。为了系统地了解该领域研究工作的进展,本文首先简要回顾了基于价格的模型,分析其不足,介绍近年来在模型扩展方面的研究工作,最后指出几个有意义的研究方向。

关键词: 拥塞控制, 网络效用最大化, 基于价格的拥塞控制模型

Abstract:

The congestion control problem in communication networks has been abstracted as an aggregate utility maximization problem in pricebased congestion control model. Pricebased model has become the general framework to design and analyze congestion control mechanisms. However, a pricebased model is different from real network environments since it is a simplified linear model. In recent years, research efforts are made to extend and improve the pricebased model. In order to systemicaly understand the development of this research area, we first briefly review the concept of pricebased model, and analyzes its limitation, then summarizes the research efforts. Finally, we provide some further interesting research directions.

Key words: congestion control;network utility maximization;pricebased congestion control model