WDM中基于业务带宽的业务量疏导算法  

A traffic grooming algorithm based on bandwidth in WDM mesh networks

作　　者：杨立春[1] 蒋杰伟[1] 李凯[1] 巩稼民[1] 

机构地区：[1]西安邮电学院,西安710061

出　　处：《光通信技术》2008年第7期9-11,共3页Optical Communication Technology

摘　　要：光网络普通用户大量的一般业务请求数目及波长通道带宽的不断增加,极大地增加了网络中电层和光层设备的处理负担,加大了网络成本。对低速电信号复用到高速光通道进行优化,减少网络电层设备的使用,降低网络成本的业务疏导技术成为目前光网络研究的一个热点。文章提出了一种基于带宽优先级的启发式算法,将业务的选路与波长分配同时完成。仿真表明,该算法在波长连续性限制,网络波长数目有限的情况下具有较低的阻塞率。The continuously increasing in the number of general traffic and the bandwidth of wavelength channel significantly aggravates the burden of the facility in both electronic and optical layer, also the cost of network. Multiplexing for low-speed signal, improvement of high-speed optical channel, decreasing the use of electronic equipments and reducing network research. On this traffic grooming algorithm, routing and wavelength assignment can be realized at the same time. The simulations show it has lower network blocking probability under the constraints of wavelength continuity and limited wavelengt.

关 键 词：业务量疏导 波分复用 选路和波长分配 

分 类 号：TN929.11[电子电信—通信与信息系统]