An implementation of time of arrivals location positioning technique for GSM networks

  • Authors:

  • N. Deligiannis;S. Louvros;K. Ioannou;A. Garmpis;S. Kotsopoulos

  • Affiliations:

  • Wireless Telecommunication Laboratory, Department of Electrical and Computer Engineering, University of Patras, Patras, Greece;Wireless Telecommunication Laboratory, Department of Electrical and Computer Engineering, University of Patras, Patras, Greece;Wireless Telecommunication Laboratory, Department of Electrical and Computer Engineering, University of Patras, Patras, Greece;Department of Applied Informatics in Management & Economy, Technical Education Institute of Messologi, Greece;Wireless Telecommunication Laboratory, Department of Electrical and Computer Engineering, University of Patras, Patras, Greece

  • Venue:
  • TELE-INFO'06 Proceedings of the 5th WSEAS international conference on Telecommunications and informatics
  • Year:
  • 2006

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Abstract

Positioning algorithms are of great importance in recent years, as the means of providing location based services (LBS) including wireless emergency services. Telecommunication engineers are frequently puzzled by the accuracy of the implemented technique in contrast with the cost. In this paper, we summarize the most known location techniques. Then we introduce a novel Time of Arrivals (TOA) location positioning method in GSM networks using three Base Stations (BSs). In order to determine the subscriber's position, the algorithm makes use of the Turin's [5] TOA positioning algorithm. The algorithm's accuracy is improved by introducing an additional weight coefficient reflecting the LOS/nLOS propagation. Finally, the cost function is simulated in a microcellular city centre environment and compared to Turin's.