北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (3): 19-22.doi: 10.13190/jbupt.200703.19.137

• 论文 • 上一篇    下一篇

状态相关的多纤WDM网络阻塞率分析新模型

刘晓红, 赵剑力, 纪越峰   

  1. 北京邮电大学 光通信与光波技术教育部重点实验室,北京100876
  • 收稿日期:2006-03-09 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 刘晓红

A New State-Dependent Analytical Model for Blocking Performance in
Multifiber WDM Networks

LIU Xiao-hong, ZHAO Jian-li, JI Yue-feng   

  1. Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education,Beijing University of Posts and Telecommunications, Beijing 100876,China
  • Received:2006-03-09 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30
  • Contact: LIU Xiao-hong

摘要:

提出了一种基于状态相关的多纤WDM网络阻塞率分析模型. 该模型通过把独立链路的各个波长的空闲状态处理为马尔可夫链, 可以分析采用First-fit波长分配及固定路由算法的多纤波长路由网络,解决了以往模型只能处理随机波长分配算法的问题. 数值分析表明,提出的模型能更加精确地估计波长路由WDM网络的阻塞率,并反映不同波长的利用率情况.

关键词: 阻塞率, 多纤波分复用光网络, 波长分配

Abstract:

A new state-dependent blocking probabilities analysis model is proposed for multi-fiber WDM (wavelength division multiplexing) network. By processing the idle states of each wavelength of the independent links as the markov chain, this model can be used to analyze the multi-fiber routing network with First-fit wavelength assignment (FF-WA) and fix routing algorithms, and break the limitation of the previous models which can only handle the random wavelength assignment algorithm. Numerical analysis proves that the new model can estimate the blocking probabilities in wavelength-routed WDM network more accurately, and capture the utilization changes of different wavelength.

Key words: blocking probability, mulitifiber Wavelength Division Multiplexing optical networks, wavelength assignment

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