MATLAB Code Implementation for OFDM Simulation

I have developed a complete OFDM simulation program implemented in MATLAB that utilizes QPSK modulation and incorporates channel estimation functionality. The simulation includes key components such as orthogonal subcarrier allocation, cyclic prefix insertion for mitigating inter-symbol interference, and pilot-based channel estimation using techniques like Least Squares or MMSE estimation. The QPSK modulation is implemented through constellation mapping and demodulation with error calculation capabilities. I welcome discussions regarding program usage, optimization methods, and potential enhancements to improve its applicability in real-world scenarios. The code structure includes modular functions for signal generation, channel modeling, and performance analysis through BER calculations. Please share any suggestions or ideas for improving the algorithm efficiency or expanding simulation features. Thank you for your participation and insights!