北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1999, Vol. 22 ›› Issue (2): 35-38.

• 学术论文 • 上一篇    下一篇

波长选路光网络的一种新的波长分配算法

魏雪松, 张杰, 顾畹仪, 李国瑞   

  1. 北京邮电大学电信工程学院, 北京 100876
  • 收稿日期:1998-08-27 出版日期:1999-03-10
  • 基金资助:
    国家“863计划”和邮电部重点科研资助项目

A New Algorithm of Wavelength Assignment in Wavelength-Routed Optical Networks

Wei Xuesong, Zhang Ji, Gu Wanyi, Li Guorui   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
  • Received:1998-08-27 Online:1999-03-10

摘要: 研究了波长选路网络光路径层设计中的波长分配问题,给出了一种新的数学描述.结合波长选路网络的特点和路径图的概念提出了一种新的波长分配算法.通过对路径图的顶点着色问题的求解得到波长分配方案.利用计算机仿真对不同规模的随机网络与一种常用算法进行了比较实验, 证明新算法有更高的波长效率.该算法可用于静态业务条件下波长资源的高效利用.

关键词: 波分复用, 光路径层设计, 波长分配算法, 波长选路光网络

Abstract: The assignment of wavelength in the design of opticalpath layer of wavelength-routed network is discussed and a new mathematical description is proposed. According to the characteristics of the wavelength-routed optical network and the concept of pathgraph, a new algorithm for wavelength assignment is proposed.The assignment of wavelength is result fromthe resolve of the vertices coloring problem of the pathgraph. Simulation on computer is carry out to compare this algorithm with a used one on random network, the higher wavelength efficiency is acquired by new algorithm . This algorithmcan be used to exploit the wavelength resources effectively under the conditionof static services.

Key words: wavelength division multiplexing, wavelength routed optical networks, wavelength assignment algorithm

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