Performance of the distributed antenna systems in a multi-cell environment

Performance of the proposed generalized distributed antenna system (GDAS) [W. Roh et.al. (2002)] in a multi-cell network is presented. A multi-cell signal model for GDAS is introduced and a framework for obtaining the output SINR of optimum and sub-optimum combiners for GDAS is discussed. The actual Monte Carlo simulation is performed first with the simplified signal model to investigate the interaction among parameters on performance without dealing with path loss variation, and later with the original model in cellular geometry to draw a conclusion in realistic conditions. The outage and BER performance of various combining techniques are obtained from the observed SINR statistics, and the decision for best scheme is made based on the network condition such as the number of interferers (J), GDAS parameters N and L, SIR and SNR.