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Protection by diversity in elastic optical networks subject to single link failure

机译:Protection by diversity in elastic optical networks subject to single link failure

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摘要

? 2022Among the multipath protection schemes found in the literature, the Partitioning Dedicated Path Protection — PDPP proposes to divide the total transmission rate required by the connection in equal parts, and then proceed the transmission of each part using multiple disjoint paths. Nevertheless, it is also possible to partition the transmission rate unequally among paths, enabling benefits to network performance. This article proposes a mixed-integer linear programming (MILP) formulation to find an optimized unequally partitioning of connections’ transmission rate among multiple disjoint paths, in order to provide dedicated protection and reduction in maximum number of slots on network and average bandwidth squeezing. The solution is analysed over a number of realistic networks, showing that the proposed formulation significantly reduces the spectral usage compared to traditional protection mechanisms and reduces the amount of squeezing required compared to the former PDPP approach.

著录项

  • 来源
    《Optical fiber technology》 |2023年第1期|103208.1-103208.11|共11页
  • 作者单位

    Federal University of Bahia Electrical and Computer Engineering DepartmentFederal University of Bahia Electrical and Computer Engineering Department||Smart Internet Lab University of Bristol;

    ||Smart Internet Lab University of Bristol;

    Department of Electronics and Systems Federal University of PernambucoDepartment of Electronics and Systems Federal University of Pernambuco||Computer Engineering Department Polytechnic School of Pernambuco University of PernambucoSchool of Computer Science and Electronic Engineering University of EssexScience and Technology Center on Energy and Sustainability Federal University of Rec?ncavo da BahiaComputer Engineering Department Polytechnic School of Pernambuco University of Pernambuco;

  • 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 英语
  • 中图分类
  • 关键词

    Elastic optical network; Protection; Routing and spectrum assignment;

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