Abstract
Spatial modulation is a kind of MIMO transmission technology, which can reduce the internal channel interference of communication system and has low signal detection complexity. In this paper, to improve the reliability of the spatial modulation system, a transmission scheme using multiple auxiliary antennas for spatial modulation system with space-time block code (STBC-ASM) is proposed. Numerical results show that about 8dB performance gain can be obtained at BER=10-4 by STBC-ASM system compared with traditional SM system.