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应用层组播共享拥塞链路消除算法
引用本文:王德志,余镇危,王德毓.应用层组播共享拥塞链路消除算法[J].计算机工程,2007,33(5):84-86.
作者姓名:王德志  余镇危  王德毓
作者单位:1. 中国矿业大学研究生院,北京,100083
2. 华北科技学院电信系,北京,101601
基金项目:高等学校博士学科点专项科研项目
摘    要:应用层组播网络由于是构造在基础网络之上的覆盖网络,因此在应用层组播路由中产生了共享拥塞链路问题。根据共享拥塞链路的不同特点,提出了一种新的基于组播会话流而改变组播树拓扑结构的应用层组播树生成算法,消除组播树中的共享拥塞链路。仿真实验表明,与基于延迟或带宽的同类路由算法相比,此算法在综合考虑组播树的带宽利用率和延迟条件下具有更好的性能。

关 键 词:应用层组播  共享拥塞链路  路由算法
文章编号:1000-3428(2007)05-0084-03
修稿时间:2006-03-20

Congestion Link Shared Eliminating Algorithm for Application Level Multicast
WANG Dezhi,YU Zhenwei,WANG Deyu.Congestion Link Shared Eliminating Algorithm for Application Level Multicast[J].Computer Engineering,2007,33(5):84-86.
Authors:WANG Dezhi  YU Zhenwei  WANG Deyu
Affiliation:1. Graduate School, China University of Mining and Technology, Beijing 100083; 2. Department of Electricity and Information, North China Institute of Science Technology, Beijing 101601
Abstract:Because an application level multicast is on top of the infrastructure,it produces a congestion link shared problem in the application level multicast routing.A new routing algorithm called congestion link shared elimination(CLSE),which is based on different multicast session and adjusts the multicast tree topology,is proposed.It can eliminate all congestion links shared in a finite number of iterations.The simulation results show that,comparing with the similar routing algorithm which based on delay or bandwidth constrain,the CLSE algorithm presents better performance with integrated considering delay and bandwidth constrains.
Keywords:Application level multicast  Congestion link shared  Routing algorithm
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