This paper presents experimental results for a SpatialDivision Multiple Access cellular mobile communicationssystem. The basestation antenna array testbedused to obtain the results is described in addition tosophisticated signal processing algorithms applied tothe received data. These algorithms perform sourcetracking, beamforming for noise and interference reduction,and data detection. Simple experiments involvingmultiple co-channel users have been performedand results are presented in terms of output bit errorrate. These results show that SDMA may be a technicallyfeasible way to increase the spectrum efficiency ofcellular mobile communications networks.

Peer Reviewed