System performance of concatenated STBC and block turbo codes in dispersive fading channels

Authors:
Yinggang Du;Kam Tai Chan
Affiliations:
Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong and Department of Electronic Engineering, Nanjing University of Science & Technology, Nanjing, Jian ...;Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2005

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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 is 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 maximuma posteriori probability expectation-maximization (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.