Design of contention resolution over backup path in path computation element based wavelength-switched optical networks  

作　　者：侯连兴 陆月明 王俊华 纪越峰 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2010年第4期372-376,共5页中国光学快报（英文版）

基　　金：supported in part by the National"863"Program of China(No.2007AA01Z252);the National Natural Science Foundation of China(Nos.60772024 and 60711140087);the National"973"Program of China (No.2007CB310705);the Specialized Research Fund for the Doctoral Program of Higher Education(SRFDP) of Ministry of Education of China(No.200800130001);the Program for Changjiang Scholars and Innovative Research Team(PCSIRT,No.IRT0609);the International S&T Cooperation Program of China(ISTCP,No. 2006DFA11040);the New Century Excellent Talents in University(NCET,No.06-0090)

摘　　要：A contention resolution scheme.P-cycle auto-switching（PCAS）.is proposed in wavelength-switched optical networks（WSONs） based on generalized multi-protocol label switching（GMPLS） to solve backward blocking.This system permits the preferable request and switches the other to a backup path generated by the P-cycle.Simulation results show that the PCAS scheme is effective in mitigating backward blocking, especially under concentrated load.A contention resolution scheme.P-cycle auto-switching（PCAS）.is proposed in wavelength-switched optical networks（WSONs） based on generalized multi-protocol label switching（GMPLS） to solve backward blocking.This system permits the preferable request and switches the other to a backup path generated by the P-cycle.Simulation results show that the PCAS scheme is effective in mitigating backward blocking, especially under concentrated load.

关 键 词：Optical materials Routing protocols 

分 类 号：TN929.1[电子电信—通信与信息系统]