A UNIVERSAL CONDITION FOR THE VELOCITY DISTRIBUTION ALLOWING SUITABLE DWELL TIME MODELING FOR WIRELESS COMMUNICATION SYSTEMS

Enrico Jugl - Holger Boche

   The mobility behavior of the subscribers strongly influences the performance of wireless communication systems. There are two approaches for mobility modeling: simulations and analytical models. First, the European Telecommunication Standards Institute (ETSI) has chosen a set of mobility models for the purpose of simulation in its selection procedures. These models are very simple and often disregarding real user behavior. Second, analytical models (eg dwell time models) are important because they are suitable for a fundamental performance evaluation. An important aspect of dwell time modeling is the proper modeling of the distribution of the velocity because of its significant influence on the dwell time. In this contribution a universal condition for the probability density function of the velocity is derived. With it an unbounded mean value of the dwell time can be prevented.

Keywords: wireless communication systems, universal mobile telecommunication system, dwell time modeling

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