Decoding techniques for some specially constructed dc-free codes

Author

Soljanin, Emina

Author_Institution

Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA

Volume

3

fYear

1997

fDate

8-12 Jun 1997

Firstpage

1633

Abstract

A previously proposed coding scheme (Soljanin 1997) for generating bipolar dc-free sequences allowed construction of several new dc-free codes with lower encoding complexity than the existing codes with comparable rates. We here discuss decoding of the new codes on a 1-D² partial response channel (PR4), and test the performance of the optimal and various suboptimal detectors by simulation. In particular, we show how the special codeword structure of the newly constructed codes can be advantageously used to reduce the decoding complexity

Keywords

channel coding; computational complexity; decoding; digital magnetic recording; partial response channels; sequences; 1-D² partial response channel; PR4; bipolar dc-free sequences; codeword structure; decoding complexity; optimal detectors; performance; specially constructed dc-free codes; suboptimal detectors; Block codes; Decoding; Detectors; Euclidean distance; Frequency; Magnetic recording; Modulation coding; Partial response channels; Testing; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1997. ICC '97 Montreal, Towards the Knowledge Millennium. 1997 IEEE International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-3925-8

Type

conf

DOI

10.1109/ICC.1997.595064

Filename

595064