Restoration and Spare Capacity Assignment in WDM Networks

  • B. Van Caenegem
  • F. Deturck
  • P. Demeester
Part of the IFIP — The International Federation for Information Processing book series (IFIPAICT)


WDM technology is an emerging technology to enhance the capacity of the existing fiber plant. The throughput is in the order of tens or hundreds of Gbit/s, even in the order of Tbit/s [1,2]. This urges on finding adequate and cost effective means to survive failures in the network. In this paper restoration techniques in WDM networks are discussed and their spare capacity requirement is compared.


spare capacity planning + strategies for network restoration optimisation techniques (integer linear programming) 


  1. [1]
    H. Onaka et al, 1.1 Tb/s WDM transmission over 150 km 1.3 pm zero-dispersion single-mode fiber,” Conference on Optical Fiber Communications (OFC’96),San Jose, CA, February 26 - March 1, 1996, post-deadline paper PD19.Google Scholar
  2. [2]
    Y.Yano et al., “2.6 Terabit/s WDM Transmission Experiment using Optical Duobinary Coding”, ThB.3.1, ECOC’96, Oslo, Sept. 16 - 19 1996.Google Scholar
  3. [3]
    M. HERZBERG, “A Decomposition Approach to Assign Spare Channels in Self-Healing Networks”, GLOBECOM ’93, pp 1601 - 1605, 1993.Google Scholar
  4. [4]
    B.Van Caenegem, N. Wauters, P. Demeester, “Spare Capacity Assignment for Different Restoration Strategies in Mesh Survivable Networks”, ICC’97, Montreal, Canada, June 1997Google Scholar
  5. [5]
    N. Wauters, P. Demeester, “Design of the Optical Path Layer in Multiwavelength Cross-Connected Networks”, IEEE Journal on Selected Areas in Communications, Vol. 14, NO. 5, June 1996Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • B. Van Caenegem
    • 1
  • F. Deturck
    • 1
  • P. Demeester
    • 1
  1. 1.Dep. of Information TechnologyUniv. of Gent — IMECBelgium

Personalised recommendations