MATLAB Simulation of Single-Carrier Frequency Domain Equalization System

This documentation presents a MATLAB simulation program for single-carrier frequency domain equalization systems. The simulation employs a multipath Rayleigh fading channel model to replicate real-world wireless communication conditions. The primary objective of this system is to enhance performance and reliability through sophisticated channel equalization techniques. The implementation involves several key signal processing algorithms including Fast Fourier Transform (FFT) operations for domain conversion, Least Squares (LS) or Minimum Mean Square Error (MMSE) algorithms for channel estimation, and frequency domain equalization filters for signal recovery. The simulation framework allows comprehensive performance evaluation through metrics like Bit Error Rate (BER) analysis and constellation diagram visualization. By utilizing this simulation program, researchers can analyze system behavior under various channel conditions, optimize parameters such as equalizer tap weights and training sequences, and implement performance improvements. The code structure includes modular components for signal generation, channel modeling, equalization processing, and results analysis, providing valuable reference and guidance for both academic research and practical applications in wireless communication systems.