LTE 4G MATLAB Code Implementation

This collection provides MATLAB-based modeling, simulation, and implementation code for LTE 4G systems. The implementation includes convolutional coding with parallel concatenated constituent encoders for Turbo encoding, and iterative decoding using MAP algorithms for Turbo decoding. BER measurement modules implement error rate calculation through bit-by-bit comparison between transmitted and received data streams. Early termination mechanism employs CRC checks or threshold-based criteria to reduce decoding iterations, optimizing computational efficiency. Timing measurement modules analyze processing delays using MATLAB's tic/toc functions or performance profiling tools. Rate matching algorithms implement puncturing and repetition techniques to achieve target code rates through circular buffer operations. Code block segmentation handles large transport blocks by dividing them into smaller code blocks with CRC attachment, ensuring efficient processing. LTE transport channel processing integrates all components into a complete transmission chain, simulating physical layer procedures including channel coding, modulation, and signal transmission. All code implementations include detailed comments and parameter configurations for research and educational purposes.