Kavian, Y. S., Rashvand, H. F., Ren, W., Leeson, Mark S., 1963-, Hines, Evor, 1957- and Naderi, M.. (2007) RWA problem for designing DWDM networks - delay against capacity optimisation. Electronics Letters, Vol.43 (No.16). pp. 892-893. ISSN 0013-5194

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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
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	Electronics Letters
Publisher:	Institution of Engineering and Technology
ISSN:	0013-5194
Date:	2 August 2007
Volume:	Vol.43
Number:	No.16
Number of Pages:	2
Page Range:	pp. 892-893
Identification Number:	10.1049/el:20071219
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/31622

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