Low Complexity Sub-Optimal Transmit Antenna Selection Schemes for Quadrature Spatial Modulation

The main objective is to discuss low complexity algorithms for transmit antenna selection in Quadrature Spatial Modulation (QSM) to achieve transmit diversity and better error performance to overcome the exhaustive search imposed by Euclidean Distance Antenna Selection (EDAS). The antenna selection metrics has reduced complexity and show better error performance and are based on capacity of channel, antenna correlation or combination of these metrics. The simulation result pictures the better error performance of antenna-selection schemes in comparison with conventional QSM.