Combining ECC with modulation: performance comparisons

Author

Blaum, Mario

Author_Institution

IBM Almaden Res. Center, San Jose, CA, USA

Volume

37

Issue

3

fYear

1991

fDate

5/1/1991 12:00:00 AM

Firstpage

945

Lastpage

949

Abstract

A technique for combining error correcting codes (ECCs) with modulation codes of the block type is described. Its performance is analyzed with respect to the traditional method in magnetic recording, which involves the concatenation of error-correcting code with a convolutional modulation code. Conditions are established under which the new method is superior to the concatenated scheme. For a fixed number of information bits, the total redundancy with the two methods is calculated and conditions are established under which the redundancy of the new method is smaller than the redundancy of the traditional method. In particular, performance with respect to the

Keywords

encoding; error correction codes; magnetic storage; modulation; ECC; block codes; concatenation; convolutional codes; error correcting codes; magnetic recording; modulation codes; modulation constraints; noisy channel; random errors; redundancy; Audio recording; Block codes; Computer errors; Error correction; Error correction codes; Magnetic noise; Modular construction; Modulation coding; Upper bound; Video recording;

fLanguage

English

Journal_Title

Information Theory, IEEE Transactions on

Publisher

ieee

ISSN

0018-9448

Type

jour

DOI

10.1109/18.79966

Filename

79966