The cellular alamouti technique — increasing transmit diversity at the cell border

In this paper we investigated the potential of a transmit diversity technique to increase and to offer a stable performance in the most critical area, namely the cell border. The technique is based on the Alamouti scheme which is applied on adjacent base stations in a cellular OFDMA communications system. Our investigations showed that at the cell border the system achieves a higher throughput; performs robust to different velocities and to non-stationary fading channel; can provide reliable performances simultaneously for one or two mobile terminals; allows to decrease the overall inter-cellular interference.