Performance Analysis of Downlink Beamforming in FDD DS-CDMA Systems
S. KIM, Youngwoo Kwon, Bongsoon Kang · IEICE Transactions on Communications · 2007
In this letter, the effects of transmit beamforming on downlink performance in DS-CDMA communication systems are examined. We present a simple-to-use expression for the conditional instantaneous SINR after Rake combining. Assuming BPSK modulation, the performance of average bit error rate is evaluated. We compare the average BER performance obtained by different beamforming methods under frequency selective multipath fading channels.