Wavelength Reusability of Failure Protection Based on Rerouting in Wavelength-routed Optical Networks  

作　　者：杨旭东 Zeng Qingji Wang Yun Liu Fengqing ZHU Xu 

机构地区：[1]R&D Center for Broadband Optical Networking Techonology,Shanghai Jiaotong University, Shanghai 200030, P.R.China

出　　处：《High Technology Letters》2004年第1期8-12,共5页高技术通讯（英文版）

基　　金：国家高技术研究发展计划(863计划)

摘　　要：This paper investigates the wavelength efficiency of failure protection based on rerouting in wavelength-routed optical networks. In order to study the impacts of different traffic pattern over the efficiency, a parameter, wavelength reusability ρ, is introduced as an evaluation criterion. Performance of different failure protection methods and the influence of different routing schemes over the performance are investigated. The routing and wavelength assignment problem involved in failure protection is formulated as integer linear programming problem, relevant heuristic optimization algorithms are also developed, numerical results are presented and discussed in detail.

关 键 词：密集波长复用技术 故障保护 波长路径 光学网络 拥塞 最优化算法 线性程序 数据传输网 

分 类 号：TN919[电子电信—通信与信息系统]