Shen et al. (2001) Heuristic Algorithm for Efficient Light-Path Routing and Wavelength Assignment in WDM Networks under Dynamically Varying Loads

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Heuristic Algorithm for Efficient Light-Path Routing and Wavelength Assignment in WDM Networks under Dynamically Varying Loads

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CONTRIBUTORS:

	Author:	Shen, Gangxiang (University of Alberta)
	Author:	Sanjay K. Bose
	Author:	Cheng, Tee Hiang
	Author:	Lu, Chao
	Author:	Chai, Teck Yoong

JOURNAL:

Computer Communications, 24(3-4), 364 - 373.

YEAR:

2001

PUB TYPE:

Journal Article

SUBJECT(S):

None

DISCIPLINE:

Computer Science

HTTP:

http://feynman.ee.ualberta.ca/~egxshen/pdf/Journal/RWA.pdf

LANGUAGE:

English

PUB ID:

103-397-670 (Last edited on 2003/12/05 16:18:13 US/Mountain)

SPONSOR(S):

ABSTRACT:
This paper presents heuristic algorithms that may be used for light-path routing and wavelength assignment in optical WDM networks under dynamically varying traf�c conditions. We consider both the situations where the wavelength continuity constraint is enforced or not enforced along a light-path. The performance of these algorithms has been studied through simulations. We also compare their performance with that of a simpler system that uses �xed shortest-path routing. Our proposed algorithms provide lower blocking probabilities and are simple enough to be applied for real time network control and management. The heuristic algorithms are computationally simple and effcient to implement and provide good wavelength utilisation leading to ef�cient usage of the network's resources.

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