Modeling, Planning, and Optimization of CDMA Cellular Radio Networks (July 2000 - June 2002)

Funded by the European Commission as part of the Marie-Curie program. .


Next generation mobile communication systems (UMTS) will mainly use CDMA technology. To design such networks a thorough understanding of the basic influential factors is inevitable, particularly the channel / air interface behaviour and the mobility dynamics of subscribers. Both are subject to random effects such that methods from stochastic modeling are best suited. The present project aims at modeling, planning and otimization of cellular radio networks employing CDMA technology. It consists of the following five major steps.

  1. Development and simulation of time dependent planar point processes which take account of clustering and inhomogeneity.
  2. The parameters of the above planar processes will be adapted to real scenarios.
  3. The cell size of a CDMA radio cell (=the corresponding area with a high enough C/I) depends on the number of active users connected to the respective base station. In the research project analytical descriptions of this effect will be developed and simulated.
  4. The outage probability and capacity will be determined for practically relevant scenarios. Model based results will be compared with simulation studies.
  5. The impact of soft hand-off will be included in the model.

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