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RWA problem for designing DWDM networks - delay against capacity optimisation
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Kavian, Y. S., Rashvand, H. F., Ren, W., Leeson, Mark S., Hines, Evor and Naderi, M. (2007) RWA problem for designing DWDM networks - delay against capacity optimisation. Electronics Letters, Vol.43 (No.16). pp. 892-893. doi:10.1049/el:20071219 ISSN 0013-5194.
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Official URL: http://dx.doi.org/10.1049/el:20071219
Abstract
Adaptation of QoS in DWDM optical networks routing and the wavelength assignment (RWA) problem, known as an NP-hard problem, are addressed. The QoS constraint based routing RWA computes lightpaths for the original-destination node pair, (0, D), to meet the QoS propagation delay requirements. A heuristic algorithm based on a genetic algorithm (GA) is then developed to solve this problem. A simulation program is developed to demonstrate the efficiency of the GA for the COST 239 network. The trade-off between the capacity and the propagation delay has been analysed. Results show that the trade-off is 8.7% of the average capacity, increasing to 10.6% decrease for the average delay.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Electronics Letters | ||||
Publisher: | Institution of Engineering and Technology | ||||
ISSN: | 0013-5194 | ||||
Official Date: | 2 August 2007 | ||||
Dates: |
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Volume: | Vol.43 | ||||
Number: | No.16 | ||||
Number of Pages: | 2 | ||||
Page Range: | pp. 892-893 | ||||
DOI: | 10.1049/el:20071219 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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