Low-Density Parity-Check Code Design Techniques to Simplify Encoding
Jesús M. Pérez, Kenneth S. Andrews · Interplanetary Network Progress Report · 2007
This work describes a method for encoding low-density parity-check (LDPC) codes based on the accumulate–repeat–4–jagged–accumulate (AR4JA) scheme, using the low-density parity-check matrix H instead of the dense generator matrix G. The use of the H matrix to encode allows a significant reduction in memory consumption and provides the encoder design a great flexibility. Also described are new hardware-efficient codes, based on the same kind of protographs, which require less memory storage and area, allowing at the same time a reduction in the encoding delay.