Process Control Module and Convolutional Encoding/Decoding Module

In this implementation, we can freely modify any sub-functions called by the main function to facilitate easier usage of various modules. These modules include process control (handling program flow and state transitions), convolutional encoding/decoding (implementing error correction using shift registers and polynomial generators), interleaving/deinterleaving (rearranging data sequences to combat burst errors), modulation/demodulation (supporting various digital modulation schemes), OFDM modulation/demodulation (utilizing IFFT/FFT operations for orthogonal subcarriers), channel module (simulating multipath Rayleigh fading with customizable tap delays and gains), and equalization module (employing algorithms like LMS or ZF for channel compensation). All modules function properly and are particularly suitable for OFDM system research. The code contains comprehensive annotations I personally wrote, ensuring easy comprehension. This represents a classic collection for communication system simulations!