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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Vydáno v:	IEEE transactions on communications Ročník 53; číslo 11; s. 1817 - 1821
Hlavní autoři:	Le, M.-T., Pham, V.-S., Mai, L., Yoon, G.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.11.2005 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	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 Performance evaluation MIMO system Block code Space-time codes maximum-likelihood (ML) detection Wireless telecommunication space-time coding Diversity multiple-input multiple-output (MIMO) Algorithm Computational complexity Maximum likelihood decoding wireless communication Transmitting antenna Modulation QR factorization Maximum likelihood
ISSN:	0090-6778, 1558-0857
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Popis
Shrnutí:	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.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 content type line 23
ISSN:	0090-6778 1558-0857
DOI:	10.1109/TCOMM.2005.858688