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Planning Wireless Networks by Shortest Path

Author

Listed:
  • Carlo Mannino

    (Dipartimento di Informatica e Sistemistica, Universita' di Roma "Sapienza")

  • Sara Mattia

    (Dipartimento di Informatica e Sistemistica, Universita' di Roma "Sapienza")

  • Antonio Sassano

    (Dipartimento di Informatica e Sistemistica, Universita' di Roma "Sapienza")

Abstract

Transmitters and receivers are the basic elements of wireless networks and are characterized by a number of radio-electrical parameters. The generic planning problem consists in establishing suitable values for these parameters so as to optimize some network performance indicator. The version here addressed, namely the Power Assignment Problem (PAP), is the problem of assigning transmission powers to the transmitters of a wireless network so as to maximize the satisfied demand. This problem has relevant practical applications both in radio-broadcasting and in mobile telephony. Typical solution approaches make use of mixed integer linear programs with huge coefficients in the constraint matrix yielding numerical inaccuracy and poor bounds and cannot be exploited to solve large instances of practical interest. In order to overcome these inconveniences, we developed a two-phase heuristic to solve large instances of PAP, namely a constructive heuristic followed by an improving local search. Both phases are based on successive shortest path computations on suitable directed graphs. Computational tests on a number of instances arising in the design of the Italian Digital Video Broadcasting are presented.

Suggested Citation

  • Carlo Mannino & Sara Mattia & Antonio Sassano, 2009. "Planning Wireless Networks by Shortest Path," DIS Technical Reports 2009-02, Department of Computer, Control and Management Engineering, Universita' degli Studi di Roma "La Sapienza".
    • Handle: RePEc:aeg:wpaper:2009-2
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    File URL: http://www.dis.uniroma1.it/~bibdis/RePEc/aeg/wpaper/2009-02.pdf
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    References listed on IDEAS

    as
    1. F. Rossi & S. Smriglio & A. Sassano, 2001. "Models and Algorithms for Terrestrial Digital Broadcasting," Annals of Operations Research, Springer, vol. 107(1), pages 267-283, October.
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