Relay-assisted multiuser MIMO-DQSM system for correlated fading channels
This paper presents the performance evaluation of an amplify-and-forward (AF) relay-assisted multiuser multiple input-multiple output (MU-MIMO) downlink transmission system for correlated fading channels.The overall system performance was improved by incorporating a double-quadrature spatial modulation (DQSM) scheme.The bit error rate (BER) perform