Design of Efficiently-Encodable Rate-Compatible Irregular LDPC Codes

Jaehong Kim, Aditya Ramamoorthy, Steven McLaughlin
2006 2006 IEEE International Conference on Communications  
We present a new class of irregular low-density parity-check (LDPC) codes for moderate block lengths (up to a few thousand bits) that are well-suited for rate-compatible puncturing. The proposed codes show good performance under puncturing over a wide range of rates and are suitable for usage in incremental redundancy hybrid-automatic repeat request (ARQ) systems. In addition, these codes are linear-time encodable with simple shift-register circuits. For a block length of 1200 bits the codes
more » ... 0 bits the codes outperform optimized irregular LDPC codes and extended irregular repeat-accumulate (eIRA) codes for all puncturing rates 0.6~0.9 (base code performance is almost the same) and are particularly good at high puncturing rates where good puncturing performance has been previously difficult to achieve.
doi:10.1109/icc.2006.254899 dblp:conf/icc/KimRM06 fatcat:6d5q72kqlnerph44vfy4xl4jdm