Title :
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
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;
Conference_Titel :
Joint NAPMRC 2003. Digest of Technical Papers [Perpendicular Magnetic Recording Conference]
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-7746-X
DOI :
10.1109/NAPMRC.2003.1177048
