Performance of low-density generator matrix codes on perpendicular recording channels

Author

Sankaranarayanan, S. ; Kurtas, E. ; Vasic, B.

Author_Institution

Arizona Univ., Tucson, AZ, USA

fYear

2003

fDate

6-8 Jan. 2003

Firstpage

44

Abstract

Cheng (Doctoral Dissertation, CIT, Pasadena, California, 1997) introduced a class of linear codes called low-density generator matrix (LDGM) codes and studied its performance on a memoryless additive white Gaussian noise (AWGN) channel. In this paper, we study its performance on perpendicular magnetic recording channels. The results shown in this paper indicate that the bit-error rate (BER) performance of some LDGM-codes is comparable to that of low-density parity check (LDPC) codes of the same rate.

Keywords

AWGN channels; error statistics; iterative decoding; linear codes; parity check codes; perpendicular magnetic recording; AWGN; BER; LDGM code bit-error rate performance; LDPC code rate; iterative decoding; linear codes; low-density generator matrix code performance; low-density parity check codes; memoryless additive white Gaussian noise channels; perpendicular magnetic recording channels; AWGN; Bipartite graph; Bit error rate; Gaussian noise; Iterative algorithms; Iterative decoding; Linear code; Parity check codes; Perpendicular magnetic recording; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Joint NAPMRC 2003. Digest of Technical Papers [Perpendicular Magnetic Recording Conference]

Conference_Location

Monterey, CA, USA

Print_ISBN

0-7803-7746-X

Type

conf

DOI

10.1109/NAPMRC.2003.1177048

Filename

1177048