Low-complexity maximum-likelihood decoder for four-transmit-antenna quasi-orthogonal space-time block code

This letter proposes a very low-complexity maximum-likelihood (ML) detection algorithm based on QR decomposition for the quasi-orthogonal space-time block code (QSTBC) with four transmit antennas, called the LC-ML decoder. The proposed algorithm enables the QSTBC to achieve ML performance with signi...

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Bibliographic Details
Published in:IEEE transactions on communications 2005-11, Vol.53 (11), p.1817-1821
Main Authors: LE, Minh-Tuan, PHAM, Van-Su, MAI, Linh, YOON, Giwan
Format: Article
Language:English
Subjects:
Algorithms
Amplitude modulation
Antennas
Applied sciences
Block codes
Coding, codes
Computation
Decoders
Decomposition
Diversity
Diversity reception
Exact sciences and technology
Information, signal and communications theory
Maximum likelihood decoding
Maximum likelihood detection
maximum-likelihood (ML) detection
MIMO
Modulation
Modulation, demodulation
multiple-input multiple-output (MIMO)
Radiocommunications
Random variables
Receiving antennas
Reduction
Signal and communications theory
space-time coding
Telecommunications
Telecommunications and information theory
Transmitting antennas
Wireless communication
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Summary:This letter proposes a very low-complexity maximum-likelihood (ML) detection algorithm based on QR decomposition for the quasi-orthogonal space-time block code (QSTBC) with four transmit antennas, called the LC-ML decoder. The proposed algorithm enables the QSTBC to achieve ML performance with significant reduction in computational load for any high-level modulation scheme.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2005.858688