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

被引：24

作者：

Le, MT ^{[1
]}

Pham, VS ^{[1
]}

Mai, L ^{[1
]}

Yoon, GW ^{[1
]}

机构：

[1] Informat & Commun Univ, Sch Engn, Taejon 305714, South Korea

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2005年 / 53卷 / 11期

关键词：

diversity; maximum-likelihood (ML) detection; multiple-input multiple-output (MIMO); space-time coding; wireless communication;

D O I：

10.1109/TCOMM.2005.858688

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：1817 / 1821

页数：5

共 10 条

[1] A simple transmit diversity technique for wireless communications [J].

Alamouti, SM .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458

[2] Lattice code decoder for space-time codes [J].

Damen, O ;

Chkeif, A ;

Belfiore, JC .

IEEE COMMUNICATIONS LETTERS, 2000, 4 (05) :161-163

[3]

Golub G. H., 1996, MATRIX COMPUTATIONS

[4]

HE L, 2003, P AS C SIGN SYST COM, V1, P1022

[5] A quasi-orthogonal space-time block code [J].

Jafarkhani, H .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (01) :1-4

[6]

Jakes W.C., 1975, MICROWAVE MOBILE COM

[7] Capacity-approaching space-time codes for systems employing four transmitter antennas [J].

Papadias, CB ;

Foschini, GJ .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2003, 49 (03) :726-733

[8] A space-time coding approach for systems employing four transmit antennas [J].

Papadias, CB ;

Foschini, GJ .

2001 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-VI, PROCEEDINGS: VOL I: SPEECH PROCESSING 1; VOL II: SPEECH PROCESSING 2 IND TECHNOL TRACK DESIGN & IMPLEMENTATION OF SIGNAL PROCESSING SYSTEMS NEURALNETWORKS FOR SIGNAL PROCESSING; VOL III: IMAGE & MULTIDIMENSIONAL SIGNAL PROCESSING MULTIMEDIA SIGNAL PROCESSING, 2001, :2481-2484

[9] Improved quasi-orthogonal codes through constellation rotation [J].

Sharma, N ;

Papadias, CB .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2003, 51 (03) :332-335

[10] Space-time block codes from orthogonal designs [J].

Tarokh, V ;

Jafarkhani, H ;

Calderbank, AR .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1999, 45 (05) :1456-1467

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