Research on dynamic RWA algorithm supporting service-differentiated provision  

作　　者：赵继军 王丽荣 纪越峰 徐大雄 

机构地区：[1]School of Information Science and Electrical Engineering,Hebei University of Engineering [2]Handan Polytechnic College [3]Key Laboratory of Optical Communication and Lightwave Technologies of the Ministry of Education,Beijing University of Posts and Telecommunications

出　　处：《Optoelectronics Letters》2010年第4期299-301,共3页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 60572021);the Natural Science Foundation of Hebei Province (No. F2010001045);Hebei Education Department R&D Project (No. 2008110)

摘　　要：In the multi-service requirement of the next generation of optical networks,differentiated services should be provided,and the transmission quality of signal and the path reliability are two important parameters of service class differentiation.A new dynamic routing and wavelength assignment(RWA) algorithm supporting service-differentiated provision,which takes account of both requirements of the signal transmission quality and the path reliability,is proposed.The numerical results from simulation show that the algorithm can not only overcome the impact of impairment on signal transmission quality and guarantee lightpath reliability,but also offer the service-differentiated lightpath according to its class.In the multi-service requirement of the next generation of optical networks,differentiated services should be provided,and the transmission quality of signal and the path reliability are two important parameters of service class differentiation.A new dynamic routing and wavelength assignment（RWA） algorithm supporting service-differentiated provision,which takes account of both requirements of the signal transmission quality and the path reliability,is proposed.The numerical results from simulation show that the algorithm can not only overcome the impact of impairment on signal transmission quality and guarantee lightpath reliability,but also offer the service-differentiated lightpath according to its class.

关 键 词：差异化服务 配套服务 RWA 算法 路由和波长分配 下一代光网络 传输质量 可靠性 

分 类 号：TN929.11[电子电信—通信与信息系统]