Transmit antenna selection with precoding for spatial modulation MIMO systems

Spatial Modulation (SM) is an efficient transmission technique for multiple input multiple output (MIMO) wireless systems, which is proposed to implement MIMO systems with low complexity and cost. In order to obtain transmit diversity gain, transmit antenna selection (TAS) technique is adopted in SM systems to achieve better performance. In this paper, we present a novel transmit antenna selection method with precoding for multiple input multiple output SM-MIMO systems, denoted as TASP. The proposed TASP scheme is totally different from the existing TAS schemes. Because it is not just a common TAS scheme, but it can also combine with all of the existing TAS schemes to further improve their performance. The simulation results show that the proposed TASP scheme brings a clear superiority in performance than conventional space shift keying (SSK), SM and the capacity optimized antenna selection (COAS) scheme. It also shows performance improvement when combining with other TAS schemes.