为降低电力通信网多优先级业务传输的失效概率,提高系统可靠性,提出一种基于业务优先级和共享风险链路组(shared risk link groups,SRLG)的电力需求响应调度优化算法。根据电力通信网业务的分类,将需求响应业务进行业务优先级的分区定位...为降低电力通信网多优先级业务传输的失效概率,提高系统可靠性,提出一种基于业务优先级和共享风险链路组(shared risk link groups,SRLG)的电力需求响应调度优化算法。根据电力通信网业务的分类,将需求响应业务进行业务优先级的分区定位,提出电力需求响应业务传输的信用值整形机制(credit-basedshaper,CBS),对不同优先级业务的传输调度机制进行描述。考虑电力通信网的共享风险链路组,对不同优先级业务调度路径的选择进行优化,实现所选路径的高可靠性。仿真结果表明,所提算法可以有效降低需求响应业务调度路径的SRLG综合失效概率和风险,平均节点处理时延较小,很好地保证了需求响应业务传输的可靠性和安全性。展开更多
光网络中引入了共享风险链路组(SRLG)的概念,要求工作通道与保护通道不能处于同一个SRLG之中。文章提出了一种基于SRLG限制的动态共享通道保护算法——动态链路权重配置(Dynamic Link Weight Configuration,DLWC)算法,该算法的关键在于...光网络中引入了共享风险链路组(SRLG)的概念,要求工作通道与保护通道不能处于同一个SRLG之中。文章提出了一种基于SRLG限制的动态共享通道保护算法——动态链路权重配置(Dynamic Link Weight Configuration,DLWC)算法,该算法的关键在于为链路定义了两个动态权重。在计算工作通道和保护通道时,它能综合解决SRLG限制、动态负载均衡和自陷等3个关键问题。展开更多
WDM光网络中引入了共享风险链路组(SRLG)的概念,要求工作通路与保护通路不能处于同一个SRLG之中.提出了一种基于SRLG限制的动态共享通道保护算法,即满足K对业务的动态链路权重配置(K-Dynamic Link Weight Con-figuration,K-DLWC)算法,...WDM光网络中引入了共享风险链路组(SRLG)的概念,要求工作通路与保护通路不能处于同一个SRLG之中.提出了一种基于SRLG限制的动态共享通道保护算法,即满足K对业务的动态链路权重配置(K-Dynamic Link Weight Con-figuration,K-DLWC)算法,该算法的关键在于为链路定义了2个动态权重.在计算工作通路和保护通路时,它能综合解决SRLG限制、局部最优等关键问题.展开更多
Previous dynamic resource allocation methods (Separate Path Select, SPS) for survivable networks are always separated into two steps, that is, to determine an optimal primary path first and then select a backup path f...Previous dynamic resource allocation methods (Separate Path Select, SPS) for survivable networks are always separated into two steps, that is, to determine an optimal primary path first and then select a backup path for the primary path. But SPS cannot achieve a good network performance. In this paper we analyze the drawback of the traditional SPS technique and propose an efficient shared protection method called M _ SPS. Instead of rejecting an arrival call immediately when a backup lightpath for the optimal primary lightpath cannot be found, M _ SPS continue to try the sub-optimal one until a legal primarybackup pair can be selected. We apply M SPS to CERNET_ Like and NSFNET networks. The results show that M _ SPS improves the network performance remarkably.展开更多
文摘为降低电力通信网多优先级业务传输的失效概率,提高系统可靠性,提出一种基于业务优先级和共享风险链路组(shared risk link groups,SRLG)的电力需求响应调度优化算法。根据电力通信网业务的分类,将需求响应业务进行业务优先级的分区定位,提出电力需求响应业务传输的信用值整形机制(credit-basedshaper,CBS),对不同优先级业务的传输调度机制进行描述。考虑电力通信网的共享风险链路组,对不同优先级业务调度路径的选择进行优化,实现所选路径的高可靠性。仿真结果表明,所提算法可以有效降低需求响应业务调度路径的SRLG综合失效概率和风险,平均节点处理时延较小,很好地保证了需求响应业务传输的可靠性和安全性。
文摘光网络中引入了共享风险链路组(SRLG)的概念,要求工作通道与保护通道不能处于同一个SRLG之中。文章提出了一种基于SRLG限制的动态共享通道保护算法——动态链路权重配置(Dynamic Link Weight Configuration,DLWC)算法,该算法的关键在于为链路定义了两个动态权重。在计算工作通道和保护通道时,它能综合解决SRLG限制、动态负载均衡和自陷等3个关键问题。
文摘WDM光网络中引入了共享风险链路组(SRLG)的概念,要求工作通路与保护通路不能处于同一个SRLG之中.提出了一种基于SRLG限制的动态共享通道保护算法,即满足K对业务的动态链路权重配置(K-Dynamic Link Weight Con-figuration,K-DLWC)算法,该算法的关键在于为链路定义了2个动态权重.在计算工作通路和保护通路时,它能综合解决SRLG限制、局部最优等关键问题.
文摘Previous dynamic resource allocation methods (Separate Path Select, SPS) for survivable networks are always separated into two steps, that is, to determine an optimal primary path first and then select a backup path for the primary path. But SPS cannot achieve a good network performance. In this paper we analyze the drawback of the traditional SPS technique and propose an efficient shared protection method called M _ SPS. Instead of rejecting an arrival call immediately when a backup lightpath for the optimal primary lightpath cannot be found, M _ SPS continue to try the sub-optimal one until a legal primarybackup pair can be selected. We apply M SPS to CERNET_ Like and NSFNET networks. The results show that M _ SPS improves the network performance remarkably.
