Title :
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
fDate :
27 Jun-1 Jul 1994
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;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394976
