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The backup reprovisioning problem of NEPCs on survivable WDM networks

机译：可生存的WDM网络上NEPC的备用备份问题

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摘要

Protection techniques for optical networks mainly rely on pre-allocated backup bandwidth, which may not be able to provide full protection guarantee when multiple failures occur in a network. After recovering from the previous failure, if failure occurs again, unprotected or vulnerable lightpaths cannot be recovered. In this paper, the minimal backup reprovisioning (MBR) problem is studied, in which, the node-encircling protecting cycles [NEPCs) scheme is considered for single node-failure on WDM networks. The NEPC Recovery Algorithm is proposed to recover the protecting capabilities of the NEPC. Simulation results show that the performance of the proposed method is better than that of the traditional one.
机译：光网络的保护技术主要依赖于预分配的备用带宽，当网络中发生多个故障时，这些带宽可能无法提供完整的保护保证。从先前的故障中恢复后，如果再次发生故障，则无法恢复未受保护或易受攻击的光路。本文研究了最小备用供应（MBR）问题，其中考虑了WDM网络上单节点故障的节点环绕保护周期（NEPC）方案。提出了NEPC恢复算法，以恢复NEPC的保护能力。仿真结果表明，该方法的性能优于传统方法。

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  • 来源
    《Optical fiber technology》 |2012年第3期|p.121-130|共10页
  • 作者

    Der-Rong Din; Shu-Ling Tung;

  • 作者单位

    Department of Computer Science and Information Engineering, National Changhua University of Education, No. 1,Jin De Road, Changhua 500, Taiwan, ROC;

    Department of Computer Science and Information Engineering, National Changhua University of Education, No. 1,Jin De Road, Changhua 500, Taiwan, ROC;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    WDM; node failure; backup reprovisioning; NEPC; heuristic algorithm;

    机译：WDM;节点故障;备用调配;NEPC;启发式算法;

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