一种基于业务整合的WDM环网结构优化设计  

Optimal design for WDM ring network in traffic-grooming

作　　者：韩一石[1] 黄雯[1] 何赛灵[1] 

机构地区：[1]浙江大学光电信息工程学系光及电磁波研究中心现代光学仪器国家重点实验室,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2004年第9期1140-1143,1195,共5页Journal of Zhejiang University：Engineering Science

基　　金：浙江省科技计划重大资助项目(001101027).

摘　　要：讨论了WDM环网中业务整合算法在控制网络成本中的作用,并基于业务整合算法提出一种适用于光传送网的多Hub环网分层结构.根据网络中业务的流向和所处的地位把光传送网分为WDM层、Hub层和非Hub层.分析表明,这种分层结构能够在不增加所需波长的情况下大幅度减少网络的端口数,降低网络成本;同时由于细化环网中各层业务的接入模式,使得这种结构还具有较强的业务接入能力和网络安全性.After investigating the traffic-grooming problem and the cost of a wavelength division multiplexing (WDM) ring network in optical transport network (OTN), a layered network with multiple Hubs was presented to minimize the total cost of network ports. Based on the position and route of the traffic, the network was divided into three layers: the WDM layer, the Hub layer and the non-Hub layer. The analysis shows that by choosing appropriate number of hub, the layered network can significantly reduce the total number of the network ports without any additional wavelength. As the network is divided into three layers, this architecture can also be used in various applications and is more robust than other architectures.

关 键 词：业务整合 WDM环网 结构设计 优化 网络成本 多Hub环网 分层网络 

分 类 号：TN915.02[电子电信—通信与信息系统]