WDM光网络中支持QoS的波长分配算法  

QoS-based wavelength assignment algorithm in all-optical networks with partial wavelength conversion

作　　者：刘海霞[1] 

机构地区：[1]潍坊学院信息与控制工程学院,潍坊261061

出　　处：《电子测试》2008年第7期20-23,共4页Electronic Test

摘　　要：基于在波长可变光网络中的波长分层图模型,本文提出了一种在动态业务情况下的支持不同QoS要求的路由波长分配算法,根据客户层业务不同的QoS要求,通过分层图模型中参数的不同取值,对其光路建立请求区别对待,提供不同级别的光路建立。仿真结果表明该算法具有很好的性能,提高了全网的资源利用率,满足了客户层业务在建立光通路时不同的QoS要求对网络阻塞率的要求。We propose a dynamic routing and wavelength assignment based on quality of service, utilizing the model of layered graph in all-optical networks with partial wavelength conversion. We base different quality of service on client server layer, utilizing to recompose the parameter in model of layered graph. We build the optical routing according the different priority request, This algorithm fits the demand of different business for asking the grade of corresponding different services in the modern all-optical network than the original algorithm. By using the algorithm, the blocking rate of the high priority request is guaranteed to be a lower degree. This results show that this algorithm can not only meet the different quality of service, requirements of the client layer＇s service, but also utilize the finite networking resources efficiently with the reduced blocking probability.

关 键 词：生存性 分层图 路由波长分配 QOS 阻塞率 

分 类 号：TN929.1[电子电信—通信与信息系统]