传输规划SDH与WDM网络的经济性比较  

Comparing Economics Between SDH and WDM Systems in Planning Transmission Network

作　　者：熊锦华[1] 杨旭[1] 梁雄健[1] 

机构地区：[1]北京邮电大学,北京100086

出　　处：《光通信技术》2004年第11期20-22,共3页Optical Communication Technology

摘　　要：分析了传输网络升级时引入点对点WDM系统,来承载SDH系统的合适时机;提出了SDH环和WDM环的成本构成模型,计算分析了在不同的环节点数量和不同的业务流量情况下二者的成本。通过SDH网络和WDM网络的经济性比较,指导网络规划建设SDH向WDM的发展演进。This paper analyzes the good time when the point-to- point WDM system is introduced to carry SDH system for network upgrade. Further more, the paper puts forward cost structure models of SDH ring and WDM ring and calculates the two rings'costs with varying ring size and traffic volume.The comparison of economics between SDH and WDM networks directs the evolution from SDH to WDM in the process of planning and constructing of transmission network.

关 键 词：SDH WDM 网络经济性比较 

分 类 号：TN929.11[电子电信—通信与信息系统]