软管不确定业务量模型下基于Valiant负载平衡的抗毁WDM网络研究  

On Protecting WDM Networks with Valiant Load Balancing under Hose Uncertain Traffic Model

作　　者：戴睿[1] 李乐民[1] 王晟[1] 章小宁[1] 

机构地区：[1]电子科技大学宽带光纤传输与通信网技术重点实验室,成都610054

出　　处：《电子与信息学报》2009年第12期2795-2800,共6页Journal of Electronics & Information Technology

基　　金：国家973计划项目(2007CB307104);国家自然科学基金(90604002);教育部新世纪优秀人才支持计划(NCET-05-0807)资助课题

摘　　要：该文研究WDM网状网在软管(Hose)不确定业务量模型下的鲁棒抗毁问题,提出一种基于Valiant负载平衡(Valiant Load Balancing,VLB)以及共享保护机制的分段保护算法VLB-SSP(VLB-based Shared Segment Protection)算法。该算法遵照共享保护的思想配置波长,并通过分割保护环的方式来满足恢复时间的要求。仿真表明,相对于专用通道VLB保护算法和均匀负载平衡保护方案,VLB-SSP算法不仅具有较小的全网代价,同时也提高了恢复的速度。In this paper, the issue of robust protection is investigated in WDM networks under the hose uncertain traffic model. Based on Valiant Load Balancing （VLB） and shared protection, a segment protection algorithm called VLB-SSP （VLB-based Shared Segment Protection） is proposed. The algorithm provisions wavelengths in terms of the shared protection, and splits the protection loops so as to meet the requirement of recovery time. Simulation results indicate that VLB-SSP can not only achieve a lower cost budget but also perform a faster recovery in contrast to dedicated-path protection VLB algorithm and uniform Load Balancing protection scheme.

关 键 词：WDM网状网 Hose不确定业务量模型 VALIANT负载平衡 分段保护 

分 类 号：TN915.63[电子电信—通信与信息系统]