重庆邮电大学学报（自然科学版）2017，Vol.29Issue(3)：313-319,7.DOI:10.3979/j.issn.1673-825X.2017.03.005
恢复时间敏感的光网络混合通路保护算法
Recovery-time aware hybrid path protection algorithm in optical networks
摘要
Abstract
For the requirement of surviving against double-link failures in WDM (wavelength division multiplexing) optical networks,we study and propose a recovery-time aware hybrid path protection algorithm.By introducing a constraint of service connection recovery time,as well as exploiting its characteristics of short service switching time of dedicated protection and high resource utilization ratio of shared protection,the proposed algorithm cooperates the dedicated path protection (DPP) and the shared path protection (SPP) to solve the conflict between the service switching time and the network resource utilization ratio,then,in accordance with the service level agreement (SLA),preferentially assigns protection resource for high-level services under a lack of network resource,so as to provide flexible recovery-degree-differentiated resource deployments for muhi-level services.The simulation results indicate that,compared with the traditional DPP and SPP,the recovery-time aware hybrid path protection can meet the requirement of service recovery-time threshold,while achieving a good trade-off among average recovery-time,network resource utilization ratio,and service connection recovery degree.关键词
波分复用(WDM)/光网络/生存性/恢复时间敏感/混合通路保护Key words
wavelength division multiplexing (WDM)/optical network/survivability/recovery-time aware/hybrid path protection分类
信息技术与安全科学引用本文复制引用
鲍宁海,苏国庆,陈静波..恢复时间敏感的光网络混合通路保护算法[J].重庆邮电大学学报（自然科学版）,2017,29(3):313-319,7.基金项目
国家自然科学基金(61671092) （61671092）
重庆市基础科学与前沿技术研究项目(cstc2016jcyjA0083) （cstc2016jcyjA0083）
重庆市高校创新团队(KJTD201312)The National Natural Science Foundation of China (61671092) （KJTD201312）
The Fundamental Science and Frontier Technology Research Project of Chongqing (cstc2016jcyjA0083) （cstc2016jcyjA0083）
The Chongqing City College Innovation Team (KJTD201312) （KJTD201312）
