OFDM System Simulation with Comprehensive Code Implementation

This code implements a highly detailed OFDM system simulation with comprehensive educational features. To enhance learner understanding, the simulation includes separate implementations for both real and imaginary components of defined functions, demonstrating complex signal processing aspects. The code covers the complete transmission chain, simulating both pre-demodulation stages (including modulation, IFFT processing, and cyclic prefix addition) and post-demodulation stages (featuring FFT processing, demodulation, and error calculation algorithms). Additionally, the implementation incorporates normalized power simulations to maintain signal integrity throughout the transmission process. The simulation framework allows for extension through additional features such as comparative analysis of different OFDM parameters (including varying FFT sizes, cyclic prefix lengths, and modulation schemes) and error evaluation mechanisms for assessing simulation accuracy. Learners can further enhance their understanding by implementing performance metrics like Bit Error Rate calculations and spectral efficiency analysis using the provided code structure. The code structure employs MATLAB's signal processing toolbox functions for efficient FFT/IFFT computations and includes custom functions for constellation mapping using QAM/PSK modulation schemes. Key algorithm implementations feature proper handling of complex numbers through real/imaginary component separation, ensuring clear demonstration of OFDM mathematical principles.