多纤IP over WDM网中的一种新型联合路由算法  

A Novel Integrated Routing Algorithm in Multifiber IP/WDM Networks

作　　者：薄明霞[1] 潘晓菲[1] 马芳华[1] 顾畹仪[1] 

机构地区：[1]北京邮电大学光通信中心,北京100876

出　　处：《北京邮电大学学报》2006年第5期120-124,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(60372096;90104003);国家"863计划"项目

摘　　要：对动态自相似业务下,多纤IP over WDM网中的联合路由问题进行了研究,提出了一种新型的基于备用选路策略的联合路由算法———最小影响算法(min-influence).该算法能精确地描述新建光路对全网状态的影响,更利于促进网络资源的合理分配,从而改善全网的阻塞概率性能.以连接阻塞概率(CBP)及带宽阻塞率(BBR)作为性能指标,通过在几种具有代表性的拓扑上进行仿真,结果表明,在不同的自相似业务参数(突发度、均值、方差)下,该算法优于已有算法.The integrated routing algorithm in IP over WDM networks under the self-similar traffic is studied, and a new integrated on-line routing algorithm, min_ influence algorithm, is proposed. It can model the state of the whole network more accurately after assigning resource than other algorithms, and facilitate the distribution of network resource more reasonably, which consequently improves the Network performance. Extensive simulations in three respective network topologies show that min_ influence algorithm performs better in terms of connection blocking probability（CBP） and bandwidth blocking ratio（BBR） than other existing approaches under the parameters of self-similar traffic（hurst, mean and variance）.

关 键 词：联合路由 自相似业务 网络性能 

分 类 号：TN913.24[电子电信—通信与信息系统]