Abstract
Recent advances in 5G wireless technology, including multiple-input multiple-output (MIMO) systems and full-duplex communications, have opened the gate for Internet of Things (IoT) applications, especially for wireless sensor nodes to collect and transfer data between environment and control center. This study analyzes the deployment of transmit antenna selection (TAS) in spatial modulation (SM) MIMO full-duplex relaying (FDR) system (SM-MIMO-FDR), where relay uses decode-and-forward (DF) protocol. Due to the computational complexity, TAS was usually neglected in previous studies on SM-MIMO system, especially when FDR is employed in the system. Here, we derive the exact form of outage probability (OP) and symbol error rate (SER) to indicate the performance of SM-MIMO-FDR system with TAS over Rayleigh fading channel. A comparison between SM-MIMO-FDR with TAS and conventional SM-MIMO-FDR shows a significant performance enhancement. Also, this study includes the impact of antenna quantity, data transmission rate, and residual self-interference (RSI) on the OP and SER through derived mathematical expressions. Finally, the correctness of the analysis is verified by numerical results through Monte Carlo simulations.
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