IP over WDM网络联合恢复策略的研究  

Study of integrated restoration strategy in IP/WDM networks

作　　者：马芳华[1] 薄明霞[1] 周锡增 张杰[1] 顾畹仪[1] 

机构地区：[1]北京邮电大学光通信与光波技术教育部重点实验室,北京100876 [2]台湾元智大学

出　　处：《光通信研究》2007年第4期5-8,30,共5页Study on Optical Communications

基　　金：教育部新世纪优秀人才计划资助项目(NCET-05-0112);北京邮电大学和台湾元智大学合作研究项目

摘　　要：文章对动态自相似业务在多纤IP over WDM网中的联合恢复问题进行了系统的研究,提出了3种联合恢复策略,算法的实现基于一种扩展的多纤分层图模型。通过大量的动态仿真实验,以业务中断率和恢复效率为性能指标,研究了上述3种恢复策略在不同自相似参数(突发度、均值和方差)中的性能,最后通过分析和比较得出联合通道恢复策略是最优的。In this paper, a systematic study is made of the integrated restoration of dynamic self-similar traffics in muhifiber IP/ WDM networks. Three integrated restoration strategies are proposed and the implementation of the algorithms is based on an extended Multifiber Layered Graph Model. Through extensive dynamic simulations, the performances of the above strategies, which are determined by the traffic interruption ratio and restoration efficiency, are studied under different parameters （Hurst, Mean and Variance） of the self-similar traffic model. By comparison and analysis, it is concluded that Integrated Path Restoration （IPR） is the best of the three restoration strategies.

关 键 词：联合恢复 自相似 分层图模型 IP OVER WDM 

分 类 号：TN915[电子电信—通信与信息系统]