Telecommunications

Frequency Planning and Ramifications of Coloring

  • Andreas Eisenblaetter
  • Martin Groetschel
  • Arie M.C.A. Koster
    • Categories Graphs and Matroids, Telecommunications Tags ,

    This paper surveys frequency assignment problems coming up in planning wireless communication services. It particularly focuses on cellular mobile phone systems such as GSM, a technology that revolutionizes communication. Traditional vertex coloring provides a conceptual framework for the mathematical modeling of many frequency planning problems. This basic form, however, needs various extensions to cover technical … Read more

    Re-Optimization of Signaling Transfer Points

  • Arie M.C.A. Koster
    • Categories Integer Programming, Telecommunications Tags , ,

    In this paper we describe the results of a computational study towards the (re)optimization of signaling transfer points (STPs) in telecommunication networks. The best performance of an STP is achieved whenever the traffic load is evenly distributed among the internal components. Due to the continuously changing traffic pattern, the load of the components has to … Read more