On the optimal placement of wavelength converters in WDM networks
文献类型：期刊论文
| 作者 | Jia, XH; Du, DZ; Hu, XD ; Huang, HJ; Li, DY
|
| 刊名 | COMPUTER COMMUNICATIONS
 |
| 出版日期 | 2003-06-02 |
| 卷号 | 26期号:9页码:986-995 |
| 关键词 | WDM networks Multihop systems wavelength conversion converter placement wavelength assignment |
| ISSN号 | 0140-3664 |
| 英文摘要 | An important goal of the design of wavelength division multiplexing (WDM) networks is to use less wavelengths to serve more communication needs. According to the wavelength conflict rule, we know that the number of wavelengths required in a WDM network is at least equal to the maximal number of channels over a fiber (called maximal link load) in the network. By placing wavelength converters at some nodes in the network, the number of wavelengths needed can be made equal to the maximal link load. In this paper, we study the problem of placing the minimal number of converters in a network to achieve that the number of wavelengths in use is equal to the maximal link load. For duplex communication channels, we prove that the optimal solution can be obtained in polynomial-time. For unidirectional communication channels, which was proved to be NP-complete, we develop a set of lemmas which lead to a simple approximation algorithm whose theoretically guaranteed performance ratio is at most two. (C) 2002 Elsevier Science B.V. All rights reserved. |
| WOS研究方向 | Computer Science ; Engineering ; Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:000182813400006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/18752]  |
| 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.Univ Minnesota, Dept Comp Sci, Minneapolis, MN 55455 USA 3.Chinese Acad Sci, Inst Appl Math, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, XH,Du, DZ,Hu, XD,et al. On the optimal placement of wavelength converters in WDM networks[J]. COMPUTER COMMUNICATIONS,2003,26(9):986-995. |
| APA | Jia, XH,Du, DZ,Hu, XD,Huang, HJ,&Li, DY.(2003).On the optimal placement of wavelength converters in WDM networks.COMPUTER COMMUNICATIONS,26(9),986-995. |
| MLA | Jia, XH,et al."On the optimal placement of wavelength converters in WDM networks".COMPUTER COMMUNICATIONS 26.9(2003):986-995. |
入库方式： OAI收割
来源：数学与系统科学研究院
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