WDM疏导网络中基于光路的动态恢复  

Lightpath-based dynamic restoration in WDM grooming networks

作　　者：姚华雄[1] 杨艳[1] 

机构地区：[1]华中师范大学计算机科学系,湖北武汉430079

出　　处：《光通信研究》2010年第1期5-7,共3页Study on Optical Communications

基　　金：国家自然科学基金资助项目(60772088)

摘　　要：针对波分复用(WDM)网络中单链路出错的生存性流量疏导问题,文章提出了一种基于光路的动态恢复机制(DRAL)。DRAL不预留任何资源,当链路出错时,通过在网络中动态地发现资源来对错误链路进行恢复,将一个出错的光路转发到一条新建立的光路或其他可用的光路上。仿真结果显示,DRAL拥有很高的恢复概率。In view of the survivable traffic grooming due to single link failures in WDM networks, this paper presents a novel lightpath-based dynamic restoration mechanism, which reserves no resources. When a link failure occurs, it restores the failure by dynamic discovery of network resources and reroutes the failed lightpath to a new lightpath or other available ones. Simulation results show that the proposed scheme has a high restoration performance.

关 键 词：光纤通信 动态恢复 流量疏导 生存性 

分 类 号：TN929.11[电子电信—通信与信息系统]