关键词: 空间调制, 天线选择, 分组映射, 多极化信道

Abstract: A Block Mapping Spatial Modulation（BMSM） scheme is proposed. Multiple antennas are activated at any one time instant. Besides the information bits transmitted by the active multiple antennas with the amplitude and/or phase modulation techniques, some other information bits are carried by specifically activated antenna indices. Compared with the conventional Spatial Modulation（SM） technique, the proposed scheme can increase the spectral efficiency of conventional SM system effectively. The simulation results in the Rayleigh fading channel exhibits that the Bit Error Rate（BER） performance of the proposed scheme is better than those of original SM and MIMO multiple antennas techniques. Combined with the transmit Antenna Selection（AS） technology, the communication quality can be further improved. The measurement and simulation results in actual multi-polarization MIMO channel under the condition of the same number of selected transmit antenna show that the BMSM scheme behaves better than traditional SM, the performance of modulation system combined AS outperforms system without combining AS.

Key words: spatial modulation, antenna selection, block mapping, multi-polarization channel