A reduced-complexity soft detector for iterative MIMO receivers

In recent years there has been much interest in wireless communication systems employing multiple antennas at both the transmit and the receive end. This class of systems, commonly referred to as multiple-input multiple-output (MIMO), has the potential of achieving remarkably high spectral efficiency in “rich” multipath environments. However, the design of practical signalling and signal processing schemes capable of supporting data rates close to the MIMO capacity limit remains a major challenge.