Optimized channel assignment scheme for TETRA networks

  • Authors:

  • E. Dimitriadou;K. Ioannou;I. Panoutsopoulos;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, Technological Educational Institution of Messolonghi, Messolonghi, Greece;Wireless Telecommunication Laboratory, Department of Electrical and Computer Engineering, University of Patras, Patras, Greece

  • Venue:
  • ELECTROSCIENCE'05 Proceedings of the 5th WSEAS international conference on Applied electromagnetics, wireless and optical communications
  • Year:
  • 2005

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Abstract

This paper presents a channel management scheme in a Tetra Network based on a two-layer cellular architecture which optimizes the blocking probability performance of Low Moving Terminals (LMT) in a congested urban area. The lower layer of the proposed architecture is based on a microcellular solution, for absorbing the traffic loads of both the handoff and new calls of the Low Moving Terminals (LMT). The higher layer is based on a macro-cell umbrella solution, for absorbing the traffic load of the handoff and new calls of the Fast Moving Terminals (FMT). The results show that using the optimum number of channels in each layer, the QoS of the HMT is optimized having the minimum effect on the QoS of the LMT.