Title :
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
fDate :
31 May-2 June 2004
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;
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
DOI :
10.1109/CASSET.2004.1321973
