一种基于Ad hoc网络的拥塞检测方法  

A Congestion Detecting Method Based on Ad hoc Network

作　　者：印石林[1] 姚放吾[1] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210003

出　　处：《计算机技术与发展》2010年第6期171-174,共4页Computer Technology and Development

基　　金：国家"863"高技术研究发展计划项目(2006AA01Z208)

摘　　要：在移动Ad hoc网络中传输多媒体流会因为无线网络中诸如节点移动、网络拥塞、信道故障等各种复杂的网络事件而变得很具有挑战性和研究价值。如何区分各种不同的网络事件从而采取相应的对策是一大难题。在文中,基于TCP友好协议TFRC,提出了一种检测网络事件的方法,能够将网络拥塞事件和其他的网络事件区分出来,从而能更好地应用于多媒体流的传输。最终通过NS2仿真来验证这种多参数的检测方法比起单一的端到端的检测方法具有更好的精确性,能够更好地为多媒体流服务。Since there are lots of complicated events such as nodes movement,network congestion,channel errors,the transmission of the real-time multimedia stream in the Ad hoc network is challenging and requires deep research.And how to distinguish all the different events and take actions is a big problem.In the paper,based on the TCP-friendly protocol TFRC proposed a method to observe the network congestion from other events so that this protocol can perform better in multimedia stream.Use the NS2 simulator to prove the advance of this multi-metric method to other single metric end-to-end method.

关 键 词：AD HOC TFRC 拥塞控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]