Shared-p-cycles method for design of survivable WDM networks  

作　　者：Zhenrong ZHANG Lixin ZHU Zhengbin LI Anshi XU 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems&Networks,Peking University,Beijing 100871,China [2]School of Computer,Electronics and Information,Guangxi University,Nanning 530004,China

出　　处：《Frontiers of Electrical and Electronic Engineering in China》2009年第4期362-370,共9页中国电气与电子工程前沿（英文版）

基　　金：supported by China Postdoctoral Science Foundation (Nos.20070420013,200801030);Open Fund of National Laboratory on Local Fiber-Optic Communication Networks&Advanced Optical Communication Systems,Peking University,China,Guangxi Science Foundation (No.0731003);Science Foundation of Guangxi University (No.X071032).

摘　　要：In future high-capacity wavelength division multiplexed(WDM)optical networks,the failure of a network component such as a fiber link can lead to severe disruption in the networks’traffic.Hence,it is imperatively important to provide fast and full protection in WDM optical networks.In this paper,we propose a new approach,called shared preconfigured protection cycles(shared-p-cycles),for the design of survivable WDM networks.We develop an integer linear program(ILP)formulation to solve the problem of shared-p-cycles design for WDM networks with and without wavelength conversion.Numerical results show that the shared-p-cycles design is more efficient in the use of spare capacity and requires much less spare capacity than the conventional pcycles design.

关 键 词：wavelength division multiplexed(WDM)optical networks integer linear program(ILP) P-CYCLE 

分 类 号：TN9[电子电信—信息与通信工程]