Chase LDPC for CC-HARQ BER Analysis

This MATLAB script calculates the Bit Error Rate (BER) for Chase-type Hybrid Automatic Repeat Request (CC-HARQ) systems using Low-Density Parity-Check (LDPC) codes as forward error correction. The implementation demonstrates cutting-edge communication technologies used in modern standards like UMTS and LTE, featuring adaptive modulation schemes, channel coding algorithms, and retransmission protocols. The code includes LDPC encoding/decoding functions and HARQ mechanism simulations to analyze communication system performance under various channel conditions.