Spatio-Temporal MIMO Systems for Multiuser Communications under Frequency Selective Fading

This paper presents multiple input multiple output (MIMO) system adopting spatio-temporal processing in both transmitter and receiver sides for multiuser communication under frequency selective fading (FSF). The proposed system assumes the perfect channel state information (CSI) at the base station (BS), and all the weights are computed at BS and then fed back to mobile stations (MSs). The weights of both sides are calculated circularly based on maximum SINR criterion fixing the weights in one side of BS or MS during the optimization of the other side. Computer simulations are carried out to verify the effectiveness and the performance of the proposed scheme.