Title :
Soft decoding of several classes of array codes
Author :
Blaum, Mario ; Fan, John L. ; Xu, Lihao
Author_Institution :
Res. Div., IBM Corp., San Jose, CA, USA
Abstract :
The potential of using various classes of MDS array codes as LDPC codes is examined. These codes include the BR code, a modified EVENODD code, and the X-code. The algebraic structures of the array codes can enable more efficient encoding and decoding in terms of memory space and computation time. Experimental results show iterative decoding of these array codes provides comparable or slightly better error correction performance than a regular LDPC code with similar parameters. In addition, these codes can be decoded as array codes.
Keywords :
algebraic codes; error correction codes; iterative decoding; parity check codes; BR code; EVENODD code; LDPC codes; MDS codes; X-code; algebraic structures; array codes; error correction performance; iterative coding; soft decoding; AWGN; Additive white noise; Belief propagation; Computer science; Degradation; Encoding; Error correction codes; Iterative decoding; Parity check codes; Signal to noise ratio;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023640
