A simultaneous transmission spatial modulation technique with optimum detection

A simultaneous transmission spatial modulation (SM) technique is introduced in this paper. Unlike in conventional SM where only one antenna transmits at a time, the simultaneous spatial modulation (SSM) transmits from two antennas at the same time. The proposed technique utilizes a unique symbol to antenna assignment algorithm at the transmitter and the SM optimum detector at the receiver. The paper compares the performances of the proposed technique to those of the conventional and optimum SM techniques and V-BLAST. The results show that the proposed technique outperforms the conventional one in terms of BER performance under different channel conditions.