A Multi-user SC-FDE-MIMO System for Frequency-Selective Channels

This paper proposes a multi-user multiple input-multiple output (MIMO) system based on a singlecarrier frequency-domain equalization (SC-FDE) technique for frequency-dispersive multipath environments, where the signals are corrupted by both co-channel interference (CCI) and intersymbol interference (ISI). The proposed scheme effectively suppresses both CCI and ISI simultaneously with relatively low complexity. Furthermore, it does not impose any restriction on the number of available antennas. Simulation results show that the proposed scheme offers improved bit error rate and throughput performance and is superior to multi-carrier systems. The proposed scheme will make the multi-user MIMO system for frequency-selective channels more practically feasible.