OBS系统仿真平台的构建及分析

分析了光突发交换网络核心交换节点的基本交换结构、交换控制模块的主要功能以及核心交换模块的构成；对光突发交换系统进行了仿真平台的构建，讨论了系统仿真中所使用的主要模块及其功能、所涉及的关键技术，给出了所构建的仿真平台和可以设置的参数；在多种交换方式下，分别建立了核心交换节点仿真模型，并进行了仿真；讨论了采用不同交换结构对光突发丢失率性能的影响。
关 键 词 光突发交换; 核心交换节点; 可调波长变换器; 光纤延迟器

Abstract The basic architecture of optical burst switching network core switch node is briefly presented in this paper. The function of switch control module and the structure of core switch node are introduced in brief. Constructing the simulation platform of OBS system is presented. This paper introduces the function of main modules in OBS system, the key technologies involved and the parameters which can be configured. Several structures of OBS core switch node simulation module are built in this paper. Simulation results and analysis of the network performance are also presented. This paper analysis the impaction of burst lost ratio by using different switching structures.
Key words optical burst switching; core switch node; tunable wavelength converter; fiber delay line