弹性光网络中基于效用的公平性感知动态频谱分配方案(英文)  

A Utility-based Fairness Aware Dynamic Spectrum Allocation Scheme in Elastic Optical Networks

作　　者：马松威 郭秉礼[1] 陈新[1] 李巨浩[1] 陈章渊[1] 何永琪[1] 

机构地区：[1]北京大学区域光纤通信网与新型光通信系统国家重点实验室,北京100871

出　　处：《光子学报》2014年第7期57-61,共5页Acta Photonica Sinica

基　　金：The National Key Basic Research and Development Program of China(Nos.2010CB328201,2010CB328202);the National Natural Science Foundation of China(Nos.60907030,60736003,61205058);the National High Technology Research and Development Program of China(No.2011AA01A106);the Open Fund of State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications)

摘　　要：针对弹性光网络中不同粒度业务之间的服务公平性问题,提出了公平性感知的动态频谱分配算法.通过引入一个新的效用函数,使得进行频谱分配时不仅考虑不同粒度业务间的服务公平性,而且还兼顾网络整体的频谱资源利用率,从而大大缓解了网络整体阻塞性能损伤.仿真结果表明,在动态网络环境下,该方案可以极大地提高弹性光网络中不同粒度业务之间的服务公平性,并且没有明显的阻塞性能恶化.In order to address the service fairness issue of traffic with different granularities in elastic optical networks, a fairness aware dynamic spectrum allocation scheme was proposed. A novel utility function was introduced to take into consideration the spectrum utilization together with the service unfairness during spectrum allocation process, thus greatly migitating the overall blocking performance deterioration. Simulation results reveal that the proposed scheme migitaes service unfairness problem remarkably without significant blocking performance deterioration.

关 键 词：弹性光网络 路由频谱分配 服务公平性 带宽阻塞比 

分 类 号：TN929[电子电信—通信与信息系统] TP30[电子电信—信息与通信工程]