DWDM optical network planning method

Optical communications – Multiplex – Optical local area network

Reexamination Certificate

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Details

C398S034000, C398S048000, C398S057000, C398S074000, C370S254000, C370S255000, C370S238000

Reexamination Certificate

active

07623785

ABSTRACT:
Various embodiments of the present invention are directed to a method for creating and optimizing a DWDM optical fiber network that is configured to service a set of demands associated with a region of interest. The method may include the following steps: 1) determining the highest aggregate demand from a set of demands within a region of interest; 2) determining a total number of lightpaths at discrete line granularities beginning with the highest aggregate demand; 3) determining a DWDM network topology comprised of a plurality of nodes and one or more wavelengths extending between the nodes based on the total number of lightpaths at discrete line granularities; 4) routing lightpaths along the wavelengths extending between the plurality of nodes based at least on predetermined decision criteria; 5) routing demands onto tributaries extending along the lightpaths based at least on predetermined guidelines; 6) calculating a cost associated with the node-related hardware parameters; and 7) outputting the node-related hardware parameters and the associated cost.

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patent: 6798752 (2004-09-01), Pope
patent: 7088920 (2006-08-01), Krishnaswamy et al.
patent: 7286480 (2007-10-01), Carpenter et al.
patent: 2003/0099014 (2003-05-01), Egner et al.
patent: 2004/0221060 (2004-11-01), Alicherry et al.
patent: 2005/0232157 (2005-10-01), Tyan et al.

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