Performance analysis of dedicated protection and shared protection for   waveband switching based on multi-granularity optical cross-connect

doi:10.1016/j.optcom.2010.09.067

CORC > 北京大学 > 信息科学技术学院

	Performance analysis of dedicated protection and shared protection for waveband switching based on multi-granularity optical cross-connect
	Guo, Lei ; Wang, Xingwei ; Jiang, Dingde ; Hou, Weigang ; Ji, Wei
刊名	optics communications
	2011
关键词	Waveband switching Optical cross connect (OXC) Multi granularity optical cross connect (MG OXC) Dedicated protection Shared protection WDM MESH NETWORKS ALGORITHM
DOI	10.1016/j.optcom.2010.09.067
英文摘要	In order to save the switching ports and the cost of Multi-Granularity Optical Cross-Connect (MG-OXC) the waveband switching technique was proposed to groom multiple wavelength-level traffic to a few waveband tunnels to be switched by a few switching ports in MG-OXC At the same time protection for fibers is very important to ensure the service continuity since each wavelength carries a lot of traffic Although existing works have addressed the waveband switching protection most of them separately considered only the dedicated protection or shared protection in static demand scenario and did not deeply analyze and compare the dedicated protection and shared protection in dynamic demand scenario Therefore in this paper we deeply study the consumptions of wavelengths in fibers and ports in MG-OXCs for Waveband Shared Protection (WSP) and Waveband Dedicated Protection (WDP) in dynamic demand scenario and propose the port-cost calculation and update methods based on a new waveband layered auxiliary graph that is developed based on MG-OXC structure In simulations we compare WSP WDP traditional end-to-end waveband shared protection and traditional end-to-end waveband dedicated protection Simulation results show that the shared protection has smaller port-cost better wavelength utilization efficiency and lower blocking probability than the dedicated protection with the same waveband switching policy and the sub-path waveband switching has bigger port-cost better wavelength utilization efficiency and lower blocking probability than the end-to-end waveband switching with the same backup wavelength assignment policy (C) 2010 Elsevier B V All rights reserved; Optics; SCI(E); EI; 2; ARTICLE; 3; 764-776; 284
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152696]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Guo, Lei,Wang, Xingwei,Jiang, Dingde,et al. Performance analysis of dedicated protection and shared protection for waveband switching based on multi-granularity optical cross-connect[J]. optics communications,2011.
APA	Guo, Lei,Wang, Xingwei,Jiang, Dingde,Hou, Weigang,&Ji, Wei.(2011).Performance analysis of dedicated protection and shared protection for waveband switching based on multi-granularity optical cross-connect.optics communications.
MLA	Guo, Lei,et al."Performance analysis of dedicated protection and shared protection for waveband switching based on multi-granularity optical cross-connect".optics communications (2011).