北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2002, Vol. 25 ›› Issue (2): 33-37.

• 学术论文 • 上一篇    下一篇

波长可变光网络中的动态路由和波长#br# 分配算法研究

温向明,关若其,朱芸,朱祥华   

  1. 北京邮电大学继续教育学院, 北京 100876
  • 收稿日期:2001-07-02 出版日期:2002-03-10
  • 作者简介: 温向明(1959—),男,北京邮电大学教授
  • 基金资助:
    国家自然科学基金资助项目(69972007)

Research on Dynamic Routing and Wavelength Assignment #br# Algorithm in Wavelength Convertible Optical Networks

WEN Xiang-ming, GUAN Ruo-qi, ZHU Yun, ZHU Xiang-hua   

  1. Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2001-07-02 Online:2002-03-10
  • Supported by:
     

摘要: 研究了光网络中的路由选择和波长分配问题,并结合分层图模型,提出了一种用于波长可变光网络的动态RWA算法,它一次性地完成了寻找路由和分配波长2个任务。通过计算机模拟证明,算法借助波长转换技术提高了波长资源的利用率。

关键词: 波分复用, 路由选择和波长分配, 分层图, 阻塞率

Abstract: After researching the problem of routing and wavelength assignment in all-optical network, based on the layered-graph model, we propose a dynamic RWA algorithm in the wavelength convertible optical network, which considers the two subproblems of routing selection and wavelength assignment simultaneously. The computer simulation verifies that the algorithm improves thewavelength utilities by virtue of wavelength conversion.

Key words: wavelength division multiplexing, RWA, layered-graph, blocking probability

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