Complexity reduced maximum likelihood detection for SDM-OFDM system

This paper proposes two complexity reduced maximum likelihood detection (MLD) methods for SDM-OFDM system to exploit the spatial diversity so as to achieve the improved transmission quality. The proposed methods enable to outperform the other suboptimal detection methods and achieve the near MLD performance with significant reduction of calculation complexity. The various computer simulation results confirm that the proposed methods could realize the above targets and might be promising solution in practical systems.