基于多重可备用的跨层资源优化方法  

Multi-backupable based cross-layer resources optimization method

作　　者：曲桦[1] 吴晓燕[2] 赵季红[2] 王力[1] 

机构地区：[1]西安交通大学,西安710049 [2]西安邮电学院通信工程系,西安710061

出　　处：《光通信技术》2011年第3期1-4,共4页Optical Communication Technology

基　　金：国家自然科学基金(61071126,60872058)资助;新一代无线重大专项(2010ZX03004)资助;国家863计划项目(2009AA01Z213)资助

摘　　要：为了减少多层网络中的资源分配冗余,降低网络资源配置代价,提供必要的生存性保证,提出了基于多重可备用的跨层资源优化方法。该方法考虑不同业务的生存性需求,将多跳业务分为三类,对不同业务应用不同的资源分配方法;在最小化网络资源配置代价的约束下,提出多重可备用的思想,即同时使用层间备用和层内备用;最后应用ILP(Integer Linear programming,整数线性规划)技术对该方法进行分析和验证。In order to reduce the redundancy of network resources assignment, the cost of resources configuration, and guarantee the survivability requirments, it provided the Multi-backupable based cross-layer resources optimization method. This method classified multi-hops service to three classes based on Diffserv model considering the different requirements of different service, and used different resource assignment method to different service classes; It provided the concept of multi-backupable,used inter-layer and intra-layer backup resources sharing at the same time based on the constraint that minimize the cost of resources configuration; Finally, it analyzed the performance of the method, it indicates that this method improves the resources utilization, reduces the cost of resources configuration, maximizes the resources sharing in multilayer networks while guarantees the service survivability.

关 键 词：区分业务生存性 层间备用 层内备用 多层网络 多重可备用 

分 类 号：TN915[电子电信—通信与信息系统]