A Low Complexity Decoding Scheme for Quasi-Orthogonal Space-Time Block Coding

被引：6

作者：

Jiang, Cunliang ^{[1
]}

Zhang, Haixia ^{[1
]}

Yuan, Dongfeng ^{[1
]}

Chen, Hsiao-Hwa ^{[2
]}

机构：

[1] Shandong Univ, Sch Informat Sci & Eng, Jinan, Shandong, Peoples R China

[2] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 701, Taiwan

来源：

2008 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2008年

关键词：

MIMO; quasi-orthogonal space-time block code; maximum-likelihood; null space;

D O I：

10.1109/SAM.2008.4606813

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：

In this paper, we propose a decoding approach for quasi-orthogonal space-time block code (QO-STBC) based on array processing. This approach works with single symbol and can deduce delay generated by the decoder as well as the decoding computational load. In this scheme, signals transmitted via different antennas are separated by null space, and then they are decoded linearly. Numerical results show that with the proposed decoding method the decoding complexity of quasi-orthogonal space-time block code can be greatly deduced. With 256-QAM modulation scheme, the computational complexity of the new decoder can be lower than that of the traditional decoder with 16-QAM.

引用

页码：9 / +

页数：2

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]

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

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

Jafarkhani, H .

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

[4] Low-complexity maximum-likelihood decoder for four-transmit-antenna quasi-orthogonal space-time block code [J].

Le, MT ;

Pham, VS ;

Mai, L ;

Yoon, GW .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2005, 53 (11) :1817-1821

[5] 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

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

Sharma, N ;

Papadias, CB .

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

[7] Signal constellations for quasi-orthogonal space-time block codes with full diversity [J].

Su, WF ;

Xia, XG .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2004, 50 (10) :2331-2347

[8] Combined array processing and space-time coding [J].

Tarokh, V ;

Naguib, A ;

Seshadri, N ;

Calderbank, AR .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1999, 45 (04) :1121-1128

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

Tarokh, V ;

Jafarkhani, H ;

Calderbank, AR .

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

[10]

Vucetic B., 2003, SPACE TIME CODING

← 1 →