Outage Performance with Handover Triggering in Cellular Mobile Networks

  • Authors:

  • F. Graziosi;M. Pratesi;M. Ruggieri;F. Santucci

  • Affiliations:

  • University of L'Aquila, Department of Electrical Engineering, Poggio di Roio, I-67040 L'Aquila, Italy;University of Roma, Department of Electronics Engineering, Via di Tor Vergata, I-00133 Roma, Italy;University of Roma, Department of Electronics Engineering, Via di Tor Vergata, I-00133 Roma, Italy;University of L'Aquila, Department of Electrical Engineering, Poggio di Roio, I-67040 L'Aquila, Italy

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2001

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Abstract

An approach to performance evaluation of cellular mobile networksis proposed, which includes the behavior of handover algorithmsin the computation of outage probability.In a general system scenario, with a central cluster and interferingbase stations, the average outage probability is computed along a trip of themobile terminal that involves crossing the boundary between adjacent cells.The effects of correlated co-channel interferersare accounted for in the computationof outage probability, as well as in the dynamics of a relative signalstrengthhandover algorithm.Numerical results are provided and discussed as obtained over a wide rangeof values of system parameters, namely cluster size and channel parameters.Trade-off curves are shown in terms of outage probability and cross-overpoint versus the average number of handovers, and possible design criteriaare outlined.It is also seen that the local outage analysis (without handover triggering)can be referred to as a lower performance bound in cases of practicalinterest.