Implementation of LDPC Codes and Encoding

Question 1

What are the problems with standard encoding

Answer 1

Standard encoding can be used with LPDC

The problems are:
1. Obtaining G is a complex process
2. G will most likely not be sparse as Pt will most likely not be sparse, encoding complexity and storage requirements O(n2)

Question 2

Describe the basics of 5G-NR LDPC Codes

Answer 2

Construction is based on two different base codes for different block lengths

The base cades are QC-LDPC codes with specified shifts