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Optimization of wavelength assignment for QoS multicast in WDM networks
Jia, XH; Du, DZ; Hu, XD; Lee, MK; Gu, J
2001-02-01
Source PublicationIEEE TRANSACTIONS ON COMMUNICATIONS
ISSN0090-6778
Volume49Issue:2Pages:341-350
AbstractThis paper discusses quality-of-service (QoS) multicast in wavelength-division multiplexing (WDM) networks. Given a set of QoS multicast requests, we are to find a set of cost suboptimal QoS routing trees and assign wavelengths to them. The objective is to minimize the number of wavelengths in the system. This is a challenging issue. It involves not only optimal QoS multicast routing, but also the optimal wavelength assignment. Existing methods consider channel setup in WDM networks in two separate steps: routing and wavelength assignment, which has limited power in minimizing the number of wavelengths. In this paper, we propose a new optimization method, which integrates routing and wavelength assignment in optimization of wavelengths. Two optimization algorithms are also proposed in minimizing the number of wavelengths. One algorithm minimizes the number of wavelengths through reducing the maximal link load in the system; while the other does it by trying to free out the least used wavelengths. Simulation results demonstrate that the proposed algorithms can produce suboptimal QoS routing trees and substantially save the number of wavelengths.
Keywordlight-tree QoS multicast routing wavelength assignment WDM network
Language英语
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000167225900017
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Cited Times:68[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/16527
Collection中国科学院数学与系统科学研究院
Affiliation1.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
4.Hong Kong Univ Sci & Technol, Dept Comp Sci, Kowloon, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Jia, XH,Du, DZ,Hu, XD,et al. Optimization of wavelength assignment for QoS multicast in WDM networks[J]. IEEE TRANSACTIONS ON COMMUNICATIONS,2001,49(2):341-350.
APA Jia, XH,Du, DZ,Hu, XD,Lee, MK,&Gu, J.(2001).Optimization of wavelength assignment for QoS multicast in WDM networks.IEEE TRANSACTIONS ON COMMUNICATIONS,49(2),341-350.
MLA Jia, XH,et al."Optimization of wavelength assignment for QoS multicast in WDM networks".IEEE TRANSACTIONS ON COMMUNICATIONS 49.2(2001):341-350.
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