POWER-CONTROL AND DIVERSITY IN MOBILE RADIO CELLULAR-SYSTEMS IN THE PRESENCE OF RICEAN FADING AND LOG-NORMAL SHADOWING

In this paper the performance of a cellular mobile radio system with f requency reuse is evaluated in terms of outage probability. Determinis tic path loss, log-normal shadowing, and Ricean fading are accounted f or, and the use of diversity and power control is considered in order to enhance system performance. Both hexagonal and lineal cells are con sidered. Particular attention is given to the sensitivity of the outag e probability to the system parameters, especially those related to th e propagation model (fading, shadowing, and path loss). It is seen tha t diversity and power control can improve the system behavior. The per formance is sensitive to the fading parameter (i.e., the Rice factor) of the intended user, but is relatively independent of that of the int erferers. Also, a significant dependence is observed on the shadowing parameter, whereas a limited dependence is seen on the outage threshol d and the channel utilization. Finally, the presence of a dual path lo ss law degrades the performance, and the outage probability increases as the breakpoint distance gets larger.