OFDM Detection under Rayleigh Channel Conditions

This source code provides an efficient and user-friendly implementation for OFDM signal detection under Rayleigh channel conditions using MATLAB's rayleighchan function. The code implements key signal processing components including: - Rayleigh fading channel modeling with configurable Doppler spread and delay profiles - OFDM transmitter chain with cyclic prefix insertion and pilot symbol allocation - Frequency domain equalization techniques for channel compensation - Signal detection algorithms with error rate calculation capabilities The implementation offers a modular structure that allows easy customization of parameters such as FFT size, modulation scheme (QPSK, 16-QAM, etc.), and channel characteristics. Users can modify channel parameters including maximum Doppler shift, path delays, and average path gains to simulate various mobile scenarios. Both beginners and experienced users will benefit from the well-documented code structure that includes: - Clear comments explaining each processing stage - Performance visualization through BER vs SNR plots - Configurable simulation parameters for different testing scenarios - Efficient matrix operations optimized for MATLAB execution The code serves as an excellent educational tool for understanding wireless communication systems and provides a solid foundation for developing more advanced OFDM-based communication protocols. Users can extend the functionality by implementing additional features like channel coding, MIMO systems, or advanced equalization techniques.