Title :
Rate-compatible array LDPC codes
Author :
Dholakia, Ajay ; Ölçer, Sedat
Author_Institution :
IBM Zurich Res. Lab., Ruschlikon, Switzerland
fDate :
27 June-2 July 2004
Abstract :
Rate-compatible low-density parity-check (LDPC) codes obtained from the class of array LDPC codes are presented. Our approach builds on the deterministic array LDPC code construction and allows efficient encodability across all codes in a rate-compatible family. Furthermore, the use of permutation matrices as building blocks of the parity-check matrix permits efficient decoder implementation. The suitability of rate-compatible array (RCA) LDPC codes for various applications is examined.
Keywords :
matrix algebra; parity check codes; LDPC code; decoder implementation; deterministic rate-compatible array; low-density parity-check code; permutation matrices; Automatic repeat request; Bit error rate; Convolutional codes; Decoding; Encoding; Laboratories; Parity check codes; Sparse matrices; Throughput; Turbo codes;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365191
