WDM网络中基于较少波长的多播路由算法

Multicast routing algorithm with small number of wavelengths in WDM network

在WDM网络中,由于网络资源有限,每条链路上的可用波长数也是有限的。根据网络优化需求,给出了两种寻找较少波长数的方法,提出了建立一棵使用较少波长并且跳数和阻塞率相对较低的多播树的近似算法,来解决WDM网络多播传送问题,有效地节省网络资源。

In WDM network, the number of wavelengths that can be used in each link is limited because of the limitation of network resources. According to the requirements of network optimization, two methods are presented to find a small number of wavelengths. An approximation algorithm to produce a multicast tree that has not only a small number of wavelengths but also fewer hops and lower blocking probability are presented. The multicast problem is resolved in WDM and the network resources are saved effectively.