Enhancements of STBC-OFDM systems by concatenating block turbo codes

Author

Du, Yinggang ; Chan, Kam Tai

Author_Institution

Dept. of Electr. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

2

fYear

2004

fDate

31 May-2 June 2004

Firstpage

655

Abstract

A new scheme of concatenating the block turbo code (BTC) with the space-time block code (STBC) for an OFDM system in dispersive fading channels has been investigated in this paper. The good error correcting capability of BTC and the large diversity gain characteristics of STBC can be achieved simultaneously. The resulting receiver outperforms the iterative convolutional turbo receiver with MAP-EM algorithm. Because of its ability to perform the encoding and decoding processes in parallel, the proposed system is easy to implement in real time.

Keywords

OFDM modulation; block codes; concatenated codes; dispersive channels; diversity reception; error correction; fading channels; space-time codes; turbo codes; STBC-OFDM systems; concatenating block turbo codes; dispersive fading channels; diversity gain; encoding-decoding process; error correcting capability; space-time block code; Block codes; Convolutional codes; Dispersion; Diversity methods; Error correction; Fading; Iterative algorithms; Iterative decoding; OFDM; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on

Print_ISBN

0-7803-7938-1

Type

conf

DOI

10.1109/CASSET.2004.1321973

Filename

1321973