Methods of channel-optimised trellis source coding for the AWGN channel

Author

Secker, P.L. ; Ogunbona, P.O.

Author_Institution

Dept. of Electr. & Comput. Eng., Wollongong Univ., NSW, Australia

fYear

1994

fDate

27 Jun-1 Jul 1994

Firstpage

236

Abstract

Improvements to channel-optimised trellis source coding for the AWGN channel are obtained by using, in various forms, real or `soft´ channel information. The proposed 1 bit/sample systems use a channel-optimised encoder matched to (1) a simple decision feedback detector, (2) an expanded codebook with 2-bit quantized information and (3) an optimum non-linear estimator decoder. The third system is further improved by considering vector alphabets and both constant and average energy constrained 2D signal constellations

Keywords

Gaussian channels; automatic repeat request; decoding; feedback; signal detection; source coding; trellis codes; 2D signal constellations; AWGN channel; average energy constrained signal; channel-optimised encoder; channel-optimised trellis source coding; codebook; constant energy constrained signal; decision feedback detector; optimum nonlinear estimator decoder; quantized information; soft channel information; vector alphabets; AWGN channels; Australia; Binary phase shift keying; Costs; Decoding; Detectors; Feedback; Indexing; Modulation coding; Source coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on

Conference_Location

Trondheim

Print_ISBN

0-7803-2015-8

Type

conf

DOI

10.1109/ISIT.1994.394976

Filename

394976