Rate-compatible puncturing of low-density parity-check codes |
| |
Authors: | Jeongseok Ha Jaehong Kim McLaughlin SW |
| |
Affiliation: | Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA; |
| |
Abstract: | In this correspondence, we consider puncturing of low-density parity-check (LDPC) codes for additive white Gaussian noise (AWGN) channels. We show that good puncturing patterns exist and that the puncturing can be performed in a rate-compatible fashion. Furthermore, rate-compatible puncturing results in a small loss of performance with respect to threshold, namely, the punctured code is good (in terms of threshold) across a range of rates when compared with the optimal codes for each rate. This allows one to implement a single "mother" encoder and decoder that is good across a wide range of rates. |
| |
Keywords: | |
|
|