INFLUENCE OF MOBILE USERS' DENSITY DISTRIBUTION ON THE CDMA BASE STATION POWER

Aleksandar Lebl – Dragan Mitić – Miroslav Popović – Žarko Markov – Mladen Mileusnić – Vladimir Matić

   In this paper we analyze the influence of users' density distribution in one cell of CDMA mobile network (ie adjusted power control on the forward link) on base station emission power. This influence is analyzed for different circles radii around base station within which same emission power is generated for all mobile users, and for different values of propagation loss coefficient. It is proved that emission power in this cell must be increased comparing to the similar cell, which uses complete power control. The power increase is greater when greater number of users are situated near base station, and for greater values of propagation loss coefficient. The results are presented, illustrated by numerical examples and verified by simulation for three users' density distributions: uniform, decreasing and increasing density from the base station to the cell rim. The simulation process, which is based on random traffic process, is presented briefly.

Keywords: mobile cell, user density, forward and reverse power control, CDMA, GSM, adjusted power control

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