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中文摘要：
针对格状光网络中的双链路故障,提出了在至少3边连通度格状光网络中,采用P圈（P-cycle）实现双链路故障保护的原理和保护圈配置策略,以及1种基于网络中工作资源分布和P圈有效跨接链路效率来配置保护圈的双链路故障启发式P圈保护算法.在OPNET软件搭建的仿真平台上,采用泛欧COST239网络拓扑和静态业务模型对算法性能进行了仿真.结果表明,该算法拥有环网快速恢复的能力,而且比已有算法具有更低的资源冗余度.
英文摘要：
The fundamental of the dual link failures protection with P-cycles in mesh optical networks was introduced. The configuration strategy of the protection cycles with P-cycles in networks with at least 3 degrees was then discussed. Furthermore, a heuristic algorithm based on the working resource distribution and the straddling links efficiency was proposed. And the proposed algorithm was simulated in COST239 network under static traffic model on OPNET simulation platform. The results show that the proposed algorithm has shorter restoration time and lower capacity redundancy.
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