optical network design

A Routing and Network Dimensioning Strategy to reduce Wavelength Continuity Conflicts in All-Optical Networks

  • Arie M.C.A. Koster
  • Matthias Scheffel
    • Categories (Mixed) Integer Linear Programming, Network Optimization, Telecommunications Tags , , ,

    Due to the high computational complexity of exact methods (e.g., integer programming) for routing and wavelength assigment in optical networks, it is beneficial to decompose the problem into a routing task and a wavelength allocation task. However, by this decomposition it is not necessarily possible to obtain a valid wavelength assignment for a given routing … Read more

    Transparent optical network design with sparse wavelength conversion

  • Arie M.C.A. Koster
  • Adrian Zymolka
  • Roland Wessäly
    • Categories (Mixed) Integer Linear Programming, Network Optimization, Telecommunications Tags , ,

    We consider the design of transparent optical networks from a practical perspective. Network operators aim at satisfying the communication demands at minimum cost. Such an optimization involves three interdependent planning issues: the dimensioning of the physical topology, the routing of lightpaths, and the wavelength assignment. Further topics include the reliability of the configuration and sparse … Read more