Improved algorithm for minimum cost range assignment problem for linear radio networks

  • Authors:
  • Gautam K. Das;Sasthi C. Ghosh;Subhas C. Nandy

  • Affiliations:
  • Indian Statistical Institute, Kolkata, India;Indian Statistical Institute, Kolkata, India;Indian Statistical Institute, Kolkata, India

  • Venue:
  • IWDC'04 Proceedings of the 6th international conference on Distributed Computing
  • Year:
  • 2004

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Abstract

The unbounded version of the 1D range assignment problem for radio-stations is studied. Here a set of n radio stations are placed arbitrarily on a line. The objective is to assign ranges to these radio-stations such that the total power consumption is minimum. A simple incremental algorithm is proposed which produces optimum solution in O(n3) time and O(n2) space. This improves the running time of the best known existing algorithm by a factor of n.