Computationally efficient signal detection for MIMO SC-FDMA systems with block circulant channel structure

In this paper, we propose a computationally effective projection scheme for non-overlapping subsystems based multiple-input-multiple-output (MIMO) single-carrier frequency-division multiple access (SC-FDMA) signal detection. We consider the block circulant channel structure and exploit singular value decomposition. The simulation confirm that the proposed technique reduces the all costs of MIMO SC-FDMA signal detection without error performance degradation.