Performance of a base station feedback-type adaptive array antenna with decision feedback equalizer at mobile station

In cellular mobile communication systems, co-channel interference and fading degrade the transmission performance. The adaptive array antenna (AAA) with a wide antenna element spacing, placed only at the base station (BS), has been studied to cope with co-channel interference and multipath fading. When signals are subjected to frequency selective fading, the AAA system cannot cope well with performance degradation due to intersymbol interference. In order to cope with this problem, we extend the system by introducing a decision feedback equalizer at the mobile station.