A Classic MIMO+OFDM System-Level Simulation Framework

This document presents a classic MIMO+OFDM system-level simulation framework that serves as an excellent learning resource for beginners. The implementation typically includes core components such as spatial multiplexing algorithms, channel estimation modules, and OFDM modulation/demodulation chains. Key functions often involve generating Rayleigh fading channels, implementing zero-forcing or MMSE equalizers, and calculating bit error rate (BER) performance metrics. Beyond the program structure, we explore practical application scenarios like 5G NR compatibility testing, wireless LAN simulations, and massive MIMO configurations. The algorithmic foundation covers Singular Value Decomposition (SVD) for precoding, cyclic prefix insertion for OFDM synchronization, and maximum likelihood detection schemes. Supplemental materials include constellation diagrams visualizing modulation schemes, throughput comparison graphs across different antenna configurations, and code注释 explaining critical parameters like pilot symbol allocation and channel correlation matrices. These enhancements provide beginners with comprehensive references to master both theoretical concepts and practical implementation techniques for this classical MIMO+OFDM simulation framework.