Analysis of coding schemes for modulation and error control

Author

Abdel-Chaffar, K.A.S. ; Blaum, Mario ; Weber, Jos H.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA

Volume

41

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

1955

Lastpage

1968

Abstract

Several techniques for constructing practical codes for noisy modulation channels represented by (d,k) constraints, such as in magnetic and optical recording, are analyzed. Concatenated schemes based on inner sliding-window codes are compared with concatenated schemes based on inner block codes in terms of efficiency and reliability. The performance of the schemes is investigated in detail for (1,7) constrained channels with different error characteristics. It is shown that for such channels, concatenated schemes based on inner sliding-window codes have higher code rates than concatenated schemes based on inner block codes for typical applications. However, if the channels are very noisy or extremely small decoding error probabilities are required, then the latter schemes tend to have higher code rates than the former ones

Keywords

block codes; concatenated codes; error correction codes; magnetic recording noise; modulation coding; optical noise; probability; (1,7) constrained channels; (d,k) constraints; code rates; coding schemes analysis; concatenated schemes; decoding error probabilities; efficiency; error characteristics; error control; inner block codes; inner sliding-window codes; magnetic recording; noisy modulation channels; optical recording; performance; practical codes; reliability; Block codes; Concatenated codes; Decoding; Error correction; Magnetic analysis; Magnetic modulators; Magnetic noise; Modulation coding; Optical noise; Optical recording;

fLanguage

English

Journal_Title

Information Theory, IEEE Transactions on

Publisher

ieee

ISSN

0018-9448

Type

jour

DOI

10.1109/18.476319

Filename

476319