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QoS约束的链路故障多备份路径恢复算法

崔文岩 孟相如 杨欢欢 李纪真 陈天平 康巧燕

崔文岩, 孟相如, 杨欢欢, 李纪真, 陈天平, 康巧燕. QoS约束的链路故障多备份路径恢复算法[J]. 电子与信息学报, 2016, 38(8): 1850-1857. doi: 10.11999/JEIT151230
引用本文: 崔文岩, 孟相如, 杨欢欢, 李纪真, 陈天平, 康巧燕. QoS约束的链路故障多备份路径恢复算法[J]. 电子与信息学报, 2016, 38(8): 1850-1857. doi: 10.11999/JEIT151230
CUI Wenyan, MENG Xiangru, YANG Huanhuan, LI Jizhen, CHEN Tianping, KANG Qiaoyan. Link Failure Recovery Algorithm Based on Multiple Backup Paths with QoS Constraint[J]. Journal of Electronics & Information Technology, 2016, 38(8): 1850-1857. doi: 10.11999/JEIT151230
Citation: CUI Wenyan, MENG Xiangru, YANG Huanhuan, LI Jizhen, CHEN Tianping, KANG Qiaoyan. Link Failure Recovery Algorithm Based on Multiple Backup Paths with QoS Constraint[J]. Journal of Electronics & Information Technology, 2016, 38(8): 1850-1857. doi: 10.11999/JEIT151230

QoS约束的链路故障多备份路径恢复算法

doi: 10.11999/JEIT151230
基金项目: 

国家自然科学基金(61201209, 61401499),陕西省自然科学基金(2013JQ8013,2015JM6340)

Link Failure Recovery Algorithm Based on Multiple Backup Paths with QoS Constraint

Funds: 

The National Natural Science Foundation of China (61201209, 61401499), Natural Science Foundation of Shaanxi Province (2013JQ8013, 2015JM6340)

  • 摘要: 链路故障的恢复,不仅仅是选择一条连通的备份路径问题,还应考虑网络业务故障恢复过程中的QoS需求。针对此问题,该文基于多备份路径策略,构建概率关联故障模型和重路由流量丢弃量优化目标。并基于该优化目标,以业务的QoS需求为约束,建立故障恢复问题的数学模型,提出一种QoS约束的链路故障多备份路径恢复算法。该算法构建单条备份路径时,以最大程度地减少重路由流量丢弃为目标,并采用改进的QoS约束的k最短路径法进行拼接,且给与高优先级链路更多的保护资源。此外还证明了算法的正确性并分析了时间空间复杂度。在NS2环境下的仿真结果表明,该算法显著提升了链路故障恢复率和重路由流量QoS满足率,且QoS约束条件越强,相较于其它算法优势越明显。
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出版历程
  • 收稿日期:  2015-11-03
  • 修回日期:  2016-03-03
  • 刊出日期:  2016-08-19

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