A novel structure of high rate (3,L) regular QC-LDPC codes for magnetic recording channels

Author

Kupimai, Mongkol ; Imtawil, Virasit ; Meesomboon, Anupap ; Suthisopapan, Puripong

Author_Institution

Dept. of Electr. Eng., Khon Kaen Univ., Khon Kaen, Thailand

fYear

2010

fDate

Oct. 31 2010-Nov. 3 2010

Firstpage

17

Lastpage

22

Abstract

The novel structure of high rate (3,L) regular QC-LDPC codes based on circulant permutation matrices are presented in this paper. The parity-check matrix of the proposed code consists of permutation matrices, their transpose matrices and identity matrices. With this new method, the proposed code is free from girth 4, girth 6, and sometimes girth 8. The construction of parity-check matrix of the proposed codes easily is obtained comparing to those of previously found (3,L) regular QC-LDPC codes. Simulation results on magnetic recording channels show that the BER performance of the proposed codes is very closed to that of other (3,L) regular QC-LDPC codes.

Keywords

error statistics; magnetic recording; matrix algebra; parity check codes; BER performance; circulant permutation matrices; identity matrices; magnetic recording channel; parity check matrix; regular QC-LDPC codes; transpose matrices; AWGN; Decoding; Detectors; Magnetic recording; Parity check codes; Signal to noise ratio; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (APCC), 2010 16th Asia-Pacific Conference on

Conference_Location

Auckland

Print_ISBN

978-1-4244-8128-6

Electronic_ISBN

978-1-4244-8127-9

Type

conf

DOI

10.1109/APCC.2010.5679760

Filename

5679760