负载均衡和服务分级的RWA算法在光网络静态规划中的应用  

作　　者：程亚锋[1] 

机构地区：[1]中国联合网络通信有限公司广东省分公司运行维护部,广东广州510627

出　　处：《数字技术与应用》2010年第8期72-75,共4页Digital Technology & Application

摘　　要：WDM光网络中的路由和波长分配问题,常常被拆分成路由选择和波长分配两个字问题来加以解决。然而对于路由的选择问题,有很多种选路算法和实现方法,而且对于链路故障也有不同的处理方法。文章首先对光网络的保护和恢复进行了讨论,然后对服务分级和负载均衡两个问题进行了研究。文章主要研究了网络的静态规划、生存性处理以及静态规划中影响网络服务质量的各种主要因素,并使用了仿真进行处理分析,得到了各种因素的影响规律。The problem of routing and wavelength assignment （RWA） in the WDM optical network is typically partitioned into two sub- problems：the routing sub-problem and the wavelength assignment sub-problem. For routing sub-problem,there are many approaches to the routing and carrying out. And there are also many methods to the link-failure. First the study talks about the protection and restoration in the optical network,then studies thc service level and the load-balance. The static programming approach,the survivability of the optical network and some factors affecting the quality of nctwork service will be talked in this study. By using the results of simulatlons,lt gets the rules of influence.

关 键 词：光网络 生存性 服务等级 负载均衡 路由与波长分配 静态规划 

分 类 号：TN913.7[电子电信—通信与信息系统]