Resource efficient survivability approach for resilient WDM optical networks

D. K. Tyagi, V. S. Shekhawat, V. K. Chaubey
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引用次数: 1

Abstract

This paper presents an overview of various existing network survivability techniques implemented in optical WDM networks and proposes an efficient network survivability approach. The proposed approach works on the principle of preplanned protection which adopts dynamic restoration strategy to improve the wavelength usages and call connection rate under single link failure scenario. The resiliency in the network is achieved through backup paths utilizing pre-provisioning at the time of connection establishment process and also by reserving wavelengths during the failure recovery time. The proposed approach has been analyzed and compared with the preplanned protection and dynamic restoration method through simulation to confirm an improvement in call acceptance ratio.
弹性WDM光网络的资源高效生存性方法
本文概述了现有的各种网络生存性技术在光WDM网络中实现,并提出了一种有效的网络生存性方法。该方法基于预计划保护原理,采用动态恢复策略提高单链路故障情况下的波长利用率和呼叫接通率。网络的弹性是通过在连接建立过程中利用预先配置的备份路径以及在故障恢复期间保留波长来实现的。通过仿真分析了该方法与预计划保护和动态恢复方法的对比,验证了该方法在呼叫接受率上的提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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