Minimizing number of wavelengths in multicast routing trees in WDM networks

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	Minimizing number of wavelengths in multicast routing trees in WDM networks
	Li, DY ; Du, XF ; Hu, XD; Lu, R ; Jia, XH
	2000-07-01
发表期刊	NETWORKS
ISSN	0028-3045
卷号	35 期号:4 页码:260-265
摘要	In a WDM network under multihop architecture, each link is associated with a set of wavelengths available for channel connections, and in the network, the number of wavelengths that can be used is limited. Data transmission over one wavelength to another requires wavelength conversion, which causes a long delay. Given a multicast connection, routing is to construct a tree for the connection that is rooted from the source and connects all destinations. In this paper, we consider the problem of constructing a routing tree with a minimal number of wavelengths on the tree. We first prove that this problem is NP-hard and then propose an approximation algorithm, which produces a routing tree that has not only a small number of wavelengths but also a short delay from the source to all destinations. (C) 2000 John Wiley & Sons, Inc.
关键词	WDM networks multicast communication routing wavelength assignment wavelength conversion
语种	英语
WOS研究方向	Computer Science ; Operations Research & Management Science
WOS类目	Computer Science, Hardware & Architecture ; Operations Research & Management Science
WOS记录号	WOS:000087752700004
出版者	JOHN WILEY & SONS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/15425
专题	应用数学研究所
通讯作者	Jia, XH
作者单位	1.City Univ Hong Kong, Dept Comp Sci, Kowloon, Hong Kong, Peoples R China 2.Cent China Normal Univ, Dept Math, Hubei 430079, Peoples R China 3.Univ Qiqihaer, Dept Math, Heilongjiang, Peoples R China 4.Chinese Acad Sci, Inst Appl Math, Beijing 100080, Peoples R China 5.Univ Minnesota, Dept Comp Sci, Minneapolis, MN 55455 USA
推荐引用方式 GB/T 7714	Li, DY,Du, XF,Hu, XD,et al. Minimizing number of wavelengths in multicast routing trees in WDM networks[J]. NETWORKS,2000,35(4):260-265.
APA	Li, DY,Du, XF,Hu, XD,Lu, R,&Jia, XH.(2000).Minimizing number of wavelengths in multicast routing trees in WDM networks.NETWORKS,35(4),260-265.
MLA	Li, DY,et al."Minimizing number of wavelengths in multicast routing trees in WDM networks".NETWORKS 35.4(2000):260-265.