Performance analysis of optical burst switching node with limited wavelength conversion capabilities

作     者：许毅 史开源 范戈 

作者机构：State Key Laboratory of Advanced Optical Communication System and Network Shanghai Jiao Tong University Weapon and Task System Research Office92728 Army of the Chinese People's Liberation Army 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2009年第16卷第5期

页      面：794-801页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：Project(60632010) supported by the National Natural Science Foundation of China 

主　　题：optical burst switching (OBS) limited range wavelength conversion (LRWC) wavelength converter burst contention burst loss probability 

摘      要：The systematical and scalable frameworks were provided for estimating the blocking probabilities under asynchronous traffic in optical burst switching(OBS) nodes with limited wavelength conversion capability(LWCC) . The relevant system architectures of limited range and limited number of wavelength converters(WCs) deployed by a share-per-fiber(SPF) mode were developed,and the novel theoretical analysis of node blocking probability was derived by combining the calculation of discouraged arrival rate in a birth-death process and two-dimensional Markov chain model of SPF. The simulation results on single node performance verify the accuracy and effectiveness of the analysis models. Under most scenarios,it is difficult to distinguish the plots generated by the analysis and simulation. As the conversion degree increases,the accuracy of the analysis model worsens slightly. However,the utmost error on burst loss probability is far less than one order of magnitude and hence,still allows for an accurate estimate. Some results are of actual significance to the construction of next-generation commercial OBS backbones.