在线多点广播路由的动态方法探讨

A Restricted Dynamic Algorithm of on-Line Multicast Routing

多点广播是网络支持多媒体业务的关键技术之一。在线多点广播问题是指组中的成员加入或离开后多点广播路由树的更新问题。本文以服务质量(QoS)指标中的带宽和时延为优化选路准则,提出了一种受限的动态多点广播路由算法,仿真结果证明了该算法比传统算法更简洁。

Multicast is becoming a key requirement of network supporting multimedia applications. On-line multicast routing problem is how multicast routing tree is changed when nodes join or leave the networks. In this paper, we propose a restricted dynamic algorithm of on-line multicast routing based on bandwidth and delay of multiple Quality of Service (QoS) metrics. The simulation shows that the proposed algorithm is more concise than old methods.