Rate-compatible puncturing of low-density parity-check codes

被引：230
|
作者：
Ha, J [1 ]
Kim, J [1 ]
McLaughlin, SW [1 ]
机构：
[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
来源：
IEEE TRANSACTIONS ON INFORMATION THEORY | 2004年 / 50卷 / 11期
关键词：
capacity-approaching code; low-density parity-check (LDPC) code; puncturing;
D O I：
10.1109/TIT.2004.836667
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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.
引用
收藏
页码：2824 / 2836
页数：13
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