Decoupled Transmit and Receive Antenna Selection for Precoding-Aided Spatial Modulation

This paper proposes an optimal joint transmit and receive antenna subsets (TRASs) selection scheme for linear precoding-aided spatial modulation (PSM) systems. The TRASs is performed by exhaustively searching, so that it difficult to analyze achievable diversity gain has a huge complexity. To tackle this problem, we propose decoupled TRAS method which selects subset (RAS) (TAS) in two-step serial manner. By computing lower bound on the pairwise error probability conducting extensive simulations, shown zero-forcing (ZF)-based PSM system with $N_{T} $ antennas, $N_{S} selected $N_{R} $N_{D} antennas achieves order of $(N_{T} -N_{D} +1)(N_{R} +1)$ even TAS selection. Furthermore, decreasing number active after RAS analytically always degrade bit rate performance. analysis results are validated simulations. These analytical simulation can be regarded as natural extensions earlier works In addition, study compare two efficient algorithms First, incremental decremental employed separable successive selection, respectively, have excellent It computational complexity first proposed suboptimal enormously reduced compared algorithms. Second, approach replaces strategy algorithm further reduce