Application of generalized minimum distance decoding to hybrid-ARQ error control

Author

Rice, Michael

Author_Institution

Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA

Volume

42

Issue

234

fYear

1994

Firstpage

640

Lastpage

647

Abstract

Generalized minimum distance (GMD) decoding is modified to allow simultaneous error detection and error correction. The soft-decision information retained by the generalized minimum distance concept is used as a source of reliability information which determines when a retransmission of the received packet should be requested. The performance of hybrid-ARQ GMD decoding is shown to be comparable to the ideal reliability metrics proposed by Loeliger (1990) and superior to the performance of hard-decision decoders. Performance expressions are derived for low to moderate signal-to-noise ratios and bounds are derived for high signal-to-noise ratios which are loose by 0.5 to 1.0 dB

Keywords

decoding; error correction; error detection; protocols; satellite relay systems; automatic-repeat-request; error correction; forward error detection; generalized minimum distance decoding; hard-decision decoders; hybrid-ARQ error control; packet retransmission; reliability information; reliability metrics; satellite communications; signal-to-noise ratio; soft-decision information; Automatic repeat request; Bit error rate; Block codes; Data communication; Decoding; Error correction; Forward error correction; Protocols; Satellite broadcasting; Signal to noise ratio;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.1994.577091

Filename

577091