Comparative Simulation Analysis of SM, V-BLAST, and MRC Systems

In this paper, we present a comprehensive comparison of simulation results for Spatial Multiplexing (SM), Vertical Bell Labs Layered Space-Time (V-BLAST), and Maximum Ratio Combining (MRC) systems. We conduct simulation tests for 6-bit transmission scenarios and perform detailed analysis of the results. To thoroughly evaluate the performance characteristics of these three systems, we employ multiple testing parameters including bit error rate (BER), transmission rate, and signal-to-noise ratio (SNR), with results systematically recorded in comparison tables. The simulation framework implements key algorithms for each system: SM utilizes spatial diversity coding schemes, V-BLAST employs successive interference cancellation with optimal ordering, and MRC applies coherent combining of received signals. Performance metrics are calculated using Monte Carlo simulations with appropriate modulation schemes (typically QAM or PSK) for the 6-bit transmission constraint. We conduct rigorous assessments of each system's strengths and limitations, focusing on implementation complexity, computational requirements, and channel condition adaptability. The comparative analysis includes receiver structure implementations, decoding algorithms, and performance under varying channel conditions (Rayleigh fading, AWGN scenarios). Through these comprehensive tests and evaluations, we aim to provide readers with detailed technical insights into SM, V-BLAST, and MRC systems, enabling informed decision-making for practical applications in wireless communication scenarios. The study particularly highlights trade-offs between spectral efficiency, implementation complexity, and error performance across different signal-to-noise ratio conditions.