WDM光网络双链路故障混合保护算法  

Two-link failure in WDM optical networks with mixed protection algorithm

作　　者：陈超[1,2] 王大彬[1,2] 徐同亚[1,2] 

机构地区：[1]重庆邮电大学计算机科学与技术学院,重庆400065 [2]电子科技大学光互联网及移动信息网络研究中心,成都611731

出　　处：《计算机应用研究》2011年第10期3855-3857,共3页Application Research of Computers

基　　金：国家"973"计划资助项目(2007CB310706);国家自然科学基金资助项目(60873263);四川省青年基金资助项目(09ZQ026-032);国家"863"计划资助项目(2009AA01Z215)

摘　　要：针对WDM光网络中的双链路故障,采用P-cycle与共享通路保护结合的方式来实现。其主要思路是:对给定的工作路径,在寻找一条与工作通路分离的保护通路的同时,再为工作通路上的每条链路寻找与保护通路部分分离的P-cycle。最后在三种不同的业务模型下进行了仿真,结果显示该算法能实现双链路故障的100%恢复,并且具有较低的阻塞率和资源冗余度。This paper combined P-cycle and shared path protection for two link failures in WDM optical networks,and put forward a mixed protection scheme whose main idea was as follow：for a given work path,found a primary protection which separated with the work path,and then for each link on the work path looked for a P-cycle protection which partly separated with the primary protection.Finally,the simulation results under three different business models show that the algorithm can achieve a recovery rate of 100%,and has a lower rejecting rate and resource redundancy.

关 键 词：波分复用 双链路失效 共享通路保护 P-CYCLE 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]