Applying QC-LDPC codes with girth 12 Irregular Frame error rate performance, using QR decomposition technique in Water fall region. Multidisciplinary, Scientific Work and Management Journal [Internet]. 2026 May 11 [cited 2026 Jul. 15];36(2):56-9. Available from: https://mswmanagementj.com/index.php/home/article/view/3814