WDM网状网中具有业务量疏导能力的共享通路保护算法

Shared Path-Protection Algorithm with Traffic Grooming Capability in WDM Mesh Networks

研究了WDM网状网中具有抗毁能力的动态业务量疏导问题 ,提出一种新的具有业务量疏导能力的共享通路保护算法· 该算法既可以保证用户业务的可靠性要求 ,同时又能够有效提高全网的资源利用率 ,从而大大降低全网的业务阻塞率· 对所提算法进行了仿真研究 。

Dynamical establishment of dependable connections in WDM mesh networks with traffic grooming capabilities was addressed. A new routing algorithm for shared path-protection was proposed. The algorithm proposed establishes link-disjoint primary and backup traffic stream paths between the source-destination node pair and reduces the spare capacity. It provides the same level of protection against single link failure as dedicated path-protection scheme. Moreover it is better than dedicated path-protection scheme in network utilization. Network performance, based on dynamic traffic with different load, was investigated via simulations. The scheme can improve the performance of the network significantly.