Joint turbo and modulated code encoding decoding for ISI channels

Author

Zhang, Y. J Alan ; Xia, Xiang Gen

Author_Institution

Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE, USA

fYear

2001

fDate

2001

Firstpage

266

Abstract

Modulated codes (MC) are convolutional codes defined over the real/complex field and therefore can be naturally combined with an intersymbol interference (ISI) channel. The linear combination provides the convenience of the optimal study. It was shown by Xia (see Modulated codes for Intersymbol Interference, Marcel Dekker, New York, 2000) that for any finite tap ISI channel, there exists MC such that the MC coded ISI channel outperforms the ideal AWGN channel at low channel SNR. It is known that turbo coding approaches the AWGN channel capacity at low SNR. This motivates us to combine turbo coding and modulated coding for ISI channel with AWGN. It turns out that the combination of turbo and MC coding for ISI channel may outperform the AWGN channel capacity at low SNR

Keywords

AWGN channels; channel capacity; channel coding; concatenated codes; convolutional codes; decoding; intersymbol interference; modulation coding; turbo codes; AWGN channel capacity; ISI channels; channel coding; convolutional codes; intersymbol interference; joint turbo code encoding decoding; low channel SNR; modulated code encoding decoding; parallel concatenated convolutional code; turbo coding; AWGN channels; Channel capacity; Convolutional codes; Intersymbol interference; MIMO; Maximum likelihood decoding; Maximum likelihood estimation; Modulation coding; Transmitters; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on

Conference_Location

Washington, DC

Print_ISBN

0-7803-7123-2

Type

conf

DOI

10.1109/ISIT.2001.936129

Filename

936129