Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2006-03-28
2006-03-28
Bello, Agustin (Department: 2633)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S057000, C398S058000
Reexamination Certificate
active
07020394
ABSTRACT:
A method and apparatus for determining a shortest path between a source node and a destination node in an optical network of nodes interconnected with optical transmission links is disclosed. A wavelength graph is used to represent an optical network as a set of electronic nodes and optical channel nodes corresponding to the network nodes with a set of internal links and optical channel links. The electronic node represents the electronic switching fabric that interconnects OEO equipment within a physical node. A single-source shortest path algorithm (e.g., Dijkstra's algorithm) is applied to the wavelength graph to determine a shortest path. The transformation of the network representation to include the electronic node greatly reduces the number of links in the wavelength graph and significantly increases the computational efficiency.
REFERENCES:
patent: 5940372 (1999-08-01), Bertin et al.
patent: 5963546 (1999-10-01), Shoji
patent: 6016306 (2000-01-01), Le Boudec et al.
patent: 6260072 (2001-07-01), Rodriguez-Moral
patent: 6304349 (2001-10-01), Alanyall et al.
patent: 6529301 (2003-03-01), Wang
patent: 6757494 (2004-06-01), Lu et al.
patent: 6798993 (2004-09-01), Adams et al.
patent: 2002/0018264 (2002-02-01), Kodialam et al.
patent: 2003/0099014 (2003-05-01), Egner et al.
Chlamtac, I., et al., Lightpath (Wavelength) Routing in Large WDM Networks,IEEE Journal on Selected Areas in Communications, 14(5): 909-913, (Jun. 1996).
Cormen, T.H., et al., “25.2 Dijkstra's Algorithm.” InIntroduction to Algorithms, eds. (NY: McGraw-Hill), pp. 527-531 (1992).
Effenberger Frank J.
Lee Kyoo J.
Zhang Hongbiao
Bello Agustin
Quantum Bridge Communications Inc.
LandOfFree
Method and apparatus for path selection and wavelength... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for path selection and wavelength..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for path selection and wavelength... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3545622