Encoding and Decoding Method for 8×8 SAST Code

doi:10.13190/jbupt.201204.55.tianxj

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (4): 55-58.doi: 10.13190/jbupt.201204.55.tianxj

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Encoding and Decoding Method for 8×8 SAST Code

TIAN Xin-ji1,XU Yan-ping1,LI Ya1,HU Zi-wei2

1.School of Computer Science and Technology, Henan Polytechnic University2.School of Information and Communication Engineering, Beijing University of Posts and Telecommunications

Received:2011-10-25 Revised:2012-05-02 Online:2012-08-28 Published:2012-07-08
Contact: TIAN Xin-Jin E-mail:tianxinji.world@yahoo.com.cn

Abstract

Abstract:

In order to reduce decoding complexity for 8×8 semiorthogonal algebraic spacetime code (SAST), a new encoding and decoding method is proposed for 8×8 SAST code with QAM modulated signals. In the proposed method, through part of the transmitted signals rotated by a certain angle according to the feedback information, the real part and the imaginary part of the first half and the second half of the transmitted signal vectors are mutually orthogonal. So its decoding complexity is proportional to the square of the modulation order. Simulation shows that the decoding complexity is reduced greatly by the proposed code only with 5 bit feedback. 

Key words: semi-orthogonal algebraic space-time code, decoding complexity, feedback, modulation order

CLC Number:

TN911.22

TIAN Xin-ji,XU Yan-ping,LI Ya,HU Zi-wei. Encoding and Decoding Method for 8×8 SAST Code[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2012, 35(4): 55-58.

References

［1］Gesbert D, Shafi M, Shiu D. From theory to practice: an overview of MIMO space time coded wireless systems[J]. IEEE Journal on Selected Areas in Communications, 2003, 21(3): 281-302. ［2］Bhatangar M, Hjrungnes A, Song L. Linear precoding of STBC over correlated rice MIMO channels[J]. IEEE Trans Wireless Commun, 2010, 9(6): 1832-1836. ［3］车正泰, 啜钢. 满速率、满分集空时分组码的研究[J]. 北京邮电大学学报, 2008, 31(5): 65-69. Che Zhengtai, Chuai Gang. A study of full rate full diversity STBC[J]. Journal of Beijing University of Posts and Telecommunications, 2008, 31(5): 65-69. ［4］Bhatangar M, Hjrungnes A, Song L. Double differential orthogonal space time block codes for arbitrarily correlated Rayleigh channels with carrier offsets[J]. IEEE Trans Wireless Commun, 2010, 9(1): 145-155. ［5］Bjornson E, Jorswieck E, Ottersten B. Impact of spatial correlation and precoding design in OSTBC MIMO systems[J]. IEEE Trans Wireless Commun, 2010, 9(11): 3578-3589. ［6］Alamouti S M. A simple transmit diversity technique for wireless communications[J]. IEEE Journal on Selected Areas in Communications, 1998, 16(8): 1451-1458. ［7］Jafarkhani H. Quasi orthogonal space time block code[J]. IEEE Transactions on Communications, 2001, 49(1): 1-4. ［8］Gharavi M, Gershman A B. Constellation space invariance of orthogonal space time block codes[J]. IEEE Transactions on Information Theory, 2005, 51(1): 331-334. ［9］Damen M, Gamal H. Linear threaded algebraic space time constellations[J]. IEEE Transaction on Information Theory, 2010, 49(10): 2596-2616. ［10］Dao N, Tellambura C. Semi orthogonal space time block codes[J]. IEEE Transaction on Information Theory, 2010, 56(1): 168-180. ［11］Lee H, Park S, Lee I. Orthogonalized spatial multiplexing for closed loop MIMO systems [J]. IEEE Trans on Communications, 2007, 55(5): 1044-1052.

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Encoding and Decoding Method for 8×8 SAST Code

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