NDLI: Fast optimum routing and wavelength assignment for WDM ring transport networks

Content Provider	IEEE Xplore Digital Library
Author	Knoke, M. Hartmann, H.L.
Copyright Year	2002
Description	Author affiliation: Inst. for Comput. & Commun. Network Eng., Technische Univ. Braunschweig, Germany (Knoke, M.; Hartmann, H.L.)
Abstract	A new method for fast optimum wavelength assignments (WLA) within two fiber optical transparent WDM rings is proposed. The combinatorial WLA problem is solved optimally by a heuristic. The generalized shortest path routing matrix (GM) is used and its decomposition in 4 areas significantly simplifies the global WLA by a fast sequential algorithm. This algorithm is less complex and its calculation time is far below the time needed for other heuristics, e.g. one order of magnitude faster than the cyclic shift method. A second compact WLA algorithm that is based on formulas is proposed. The complexity of its implementation reduces to less than 15 lines of code. This algorithm supports either local WLAs with the time complexity O(1) per demand pair or global WLAs for WDM rings of F facility nodes with O(F/sup 2/).
Starting Page	2740
Ending Page	2744
File Size	610543
Page Count	5
File Format	PDF
ISBN	0780374002
DOI	10.1109/ICC.2002.997341
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelength routing Wavelength assignment Wavelength division multiplexing WDM networks Optical fiber networks Matrix decomposition Optical add-drop multiplexers High speed optical techniques Displays Tensile stress
Content Type	Text
Resource Type	Article

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