Newly developed quasi-cyclic low density parity check codes for hard disks record data

Journal article

Authors / Editors

Yahya, Abid

Research Areas

No matching items found.

Publication Details

Author list: Yahya A, Ghani F, Ahmed RB

Publisher: NATL INST OPTOELECTRONICS

Place: BUCHAREST-MAGURELE

Publication year: 2011

Journal acronym: OPTOELECTRON ADV MAT

Volume number: 5

Issue number: 7

Start page: 745

End page: 750

Number of pages: 6

ISSN: 1842-6573

Languages: English-Great Britain (EN-GB)

View in Web of Science | View citing articles in Web of Science

Abstract

This paper presents a new technique for constructing the Quasi-Cyclic low density parity check (QC-LDPC) codes based on row division method. The new codes offer more flexibility in term of girth, code rates and codeword length. In this method of code construction, the rows are used to form as the distance graph. Then they are transformed to a parity-check matrix in order to acquire the desired girth. Simulation results show that the proposed QC-LDPC codes achieve a 0.1dB coding gain over randomly constructed codes and perform 1.3 dB from the Shannon-limit at a BER of 10(-6) with a code rate of 0.89 for block length of 1332.

Keywords

Bit error rate, Communication channels, Encoding, QC-LDPC

Documents