routing and wavelength assignment

Stochastic RWA and Lightpath Rerouting in WDM Networks

  • Maryam Daryalal
  • Merve Bodur
    • Categories Stochastic Programming, Telecommunications Tags , , ,

    In a telecommunication network, Routing and Wavelength Assignment (RWA) is the problem of finding lightpaths for incoming connection requests. When facing a dynamic traffic, greedy assignment of lightpaths to incoming requests based on predefined deterministic policies leads to a fragmented network that cannot make use of its full capacity due to stranded bandwidth. At this … Read more

    Efficient implementations of heuristics for routing and wavelength assignment

  • Thiago F. Noronha
  • Mauricio G.C. Resende
  • Celso C. Ribeiro
    • Categories Combinatorial Optimization, Telecommunications Tags , ,

    The problem of Routing and Wavelength Assignment in Wavelength Division Multiplexing (WDM) optical networks consists in routing a set of lightpaths and assigning a wavelength to each of them, such that lightpaths whose routes share a common fiber are assigned to different wavelengths. When the objective is to minimize the total number of wavelengths used, … Read more