Optical communications – Multiplex
Reexamination Certificate
2007-10-23
2007-10-23
Chan, Jason (Department: 2613)
Optical communications
Multiplex
C398S079000
Reexamination Certificate
active
10405530
ABSTRACT:
System and method for dynamically assigning wavelengths wavelength division multiplex (“WDM”) ring networks is described. In one embodiment, the invention comprises a method for dynamic wavelength assignment on a ring in a WDM network comprising, for each new requested traffic flow from a source node to a destination node on the ring, for each segment on a path around the ring between the source and destination nodes, classifying the new requested traffic flow into one of a set of spatial relationship types for each existing wavelength; determining a corresponding number of optical-to-electrical and electrical-to-optical (“OEO”) interfaces needed for each spatial relationship type selected for each segment; determining the total number of OEO interfaces needed for the entire path between the source and destination nodes along the ring; and selecting the existing wavelengths that minimize the OEO interfaces.
REFERENCES:
patent: 5801861 (1998-09-01), Majima
patent: 6304349 (2001-10-01), Alanyali et al.
patent: 6748171 (2004-06-01), Homayoun et al.
patent: 7003225 (2006-02-01), Iraschko et al.
patent: 2002/0122442 (2002-09-01), Suemura
patent: 2002/0154357 (2002-10-01), Ozveren et al.
patent: 2004/0208587 (2004-10-01), Chang et al.
patent: 2005/0002671 (2005-01-01), Smith et al.
patent: 11 122258 (1999-04-01), None
Gerstel et al. (“Dynamic wavelength allocation in all-optical ring networks”, 1997 IEEE International Conference on Communications, Jun. 8-12, 1997, vol. 1, pp. 432-436).
Yuan et al. (“Wavelength assignment to minimize the number of SONET ADMs in WDM rings”, IEEE International Conference on Communications 2002, vol. 5, pp. 2917-2921).
Wan et al. (“Grooming of arbitrary traffic in SONET/WDM rings”, Global Telecommunication Coference-Globecom'99, pp. 1012-1016).
Duser et al. (“Performance of a dynamically wavelength-routed, optical burst switched network”, IEEE Photonics Technology Letters, Feb. 2002, vol. 14, pp. 239-241).
L. Noirie et al. “Impact of intermediate traffic grouping on the dimensioning of multi-granularity optical networks”; OFC 2001, vol. 2, pp. TuG3-1-TuG3-3.
Gerstel, et al., Worst-Case Analysis of Dynamic Wavelength Allocation in Optical Networks, IEEE/ACM Transactions on Networking, Dec. 1999, pp. 883-845, vol. 7, Issue: 6.
Berry, et al., Minimizing Electronic Multiplexing Costs for Dynamic Traffic in Unidirectional SONET Ring Networks, IEEE International Conference on Communications, 1999, pp. 1724-1730, vol. 3.
Gerstel, et al., Wavelength Assignment in a WDM Ring to Minimize Cost of Embedded SONET Rings, Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies, 1998, pp. 94-101, vol. 1.
Law, et al., Online Routing and Wavelength Assignment in Single-Hub WDM Rings, IEEE Journal on Selected Areas in Communications, Oct. 2000, pp. 2111-2122, vol. 18, Issue: 10.
Zhang, et al., An Effective and Comprehensive Approach for Traffic Grooming and Wavelength Assignment in SONET/WDM Rings, IEEE/ACM Transactions on Networking, Oct. 2000, pp. 608-617, vol. 8, Issue 5.
Herrera, et al., A Framework for IP Over Resilient Packet Rings, Internet Draft, IETF Working Group IP Over Resilient Packer Rings, Jun. 2001.
Liu, et al., Wavelength Assignment in WDM Rings to Minimize SONET ADMs, INFOCOM 2000, Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies, 2000, pp. 1020-1025, vol. 2.
Waldman, et al., Dynamic Priority Strategies for Wavelength Assignment in WDM Rings, GLOBECOM '00, IEEE Global Telecommunications Conference, 2000, pp. 1288-1292, vol. 2.
Wuttisttikulkij, et al., Design of an Efficient and Practical Algorithm for Wavelength Assignment in Multi-Wavelength Ring Transport Networks, GLOBECOM '97, IEEE Global Telecommunications Conference, 1997, pp. 571-575, vol. 1.
Ghafouri-Shiraz, Effective Wavelength Assignment Algorithms for Optimizing Design Costs in SONET/WDM Rings, Journal of Lightwave Technology, vol. 19, No. 10, Oct. 2001.
Tsiang, et al., The Cisco SRP MAC Layer Protocal, RFC 2892 IETF, Network Working Group, Aug. 2000.
Ellinas, et al., Scalability of a Novel Wavelength Assignment Algorithm for WDM Shared Protection Rings, OFC '98 Technical Digest, Jun. 1998, pp. 363-364, USA.
Kumar, M.S. et al., “Lightpath Setup Time Optimization in Wavelength Routed All-Optical Networks”, Computer Communications, Elsevier Science Publishers BV, Amsterdam, NL, vol. 24, No. 10, May 15, 2001, pp. 984-995, XP004240648 ISSN: 0140-3664.
Strand, J. et al, “Importance of Wavelength Conversion in an Optical Network”, Optical Networks Magazine, SPIE, Bellingham, WA, US, vol. 2, No. 3, May 2001, pp. 33-44, XP001081229, ISSN: 1388-6916.
Chen S, et al, “An Overview of Quality of Service Routing for Next-Generation High-Speed Networks: Problems and Solutions” IEEE Network, IEEE Service Center, New York, NY, US, vol. 12, No. 6 Nov. 1998, pp. 64-79, XP000873129 ISSN: 0890-8044.
Cho Wonhong
Ge An
Sridhar Kamakshi
Alcatel Lucent
Chan Jason
Danamraj & Youst PC
Slaton Bobby D.
Wang Quan-Zhen
LandOfFree
System and method for dynamic wavelength assignment in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for dynamic wavelength assignment in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for dynamic wavelength assignment in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3861992