Precoding-Based Full Rate Quasi-Orthogonal Space-Time Block Codes

Gong Zheng-wei; Zhang Tai-yi; Zhang Rui-ping

doi:10.3724/SP.J.1146.2006.01625

Volume 30 Issue 5

Dec. 2010

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Gong Zheng-wei, Zhang Tai-yi, Zhang Rui-ping. Precoding-Based Full Rate Quasi-Orthogonal Space-Time Block Codes[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1163-1166. doi: 10.3724/SP.J.1146.2006.01625

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Gong Zheng-wei, Zhang Tai-yi, Zhang Rui-ping. Precoding-Based Full Rate Quasi-Orthogonal Space-Time Block Codes[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1163-1166. doi: 10.3724/SP.J.1146.2006.01625

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Precoding-Based Full Rate Quasi-Orthogonal Space-Time Block Codes

doi: 10.3724/SP.J.1146.2006.01625

Received Date: 2006-10-23
Rev Recd Date: 2007-04-09
Publish Date: 2008-05-19

Abstract

Abstract

Due to the high decoding complexity of the conventional full rate Quasi-Orthogonal Space-Time Block Code (QOSTBC) over eight transmit antennas, two precoding-based transmit schemes are proposed. The new QOSTBC is extended from the OSTBC over four antennas. With the precoding matrix constructed with the two phase feedbacks, the orthogonalization of channel matrix cancels the Inter-Symbol Interference (ISI). The Maximum Likelihood (ML) decoding of independent symbol is realized. An extra performance improvement is achieved with the interleaving at the transmitter. Meanwhile, the ML decoding of two joint symbols is carried out. Unlike the constellation rotation scheme for the full diversity, the precoding scheme improves the performance of QOSTBC with reducing ISI to the most extent. Simulation results show that two precdoing-based QOSTBCs outperform the conventional QOSTBC with constellation rotation and achieve the lower decoding complexity.

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References(1)

References

Alamouti S M. A simple transmit diversity technique forwireless communications[J].IEEE J on Select Areas Commun.1998, 16(8):1451-1458[2]Tarokh V, Jafarkhani H, and Calderbank A R. Space-timeblock codes from orthogonal designs[J].IEEE Trans on InformTheory.1999, 45(5):1456-1467[3]Jafarkhani H. A quasi-orthogonal space-time block code[J].IEEE Trans on Commun.2001, 49(1):1-4[4]Sharma N and Papadias C B. Full-rate full-diversity linearquasi-orthogonal space-time codes for any number oftransmit antennas. EURASIP Journal on Applied SignalProcessing, 2004, 2004(9): 1246-1256.[5]Su Weifeng and Xia XiangGen. Signal constellations forquasi-orthogonal space-time block codes with full diversity[J].IEEE Trans Inform on Theory.2004, 50(10):2331-2347[6]Dalton Lori A and Georghiades Costas N. A full-rate,full-diversity four-antenna quasi-orthogonal space-time blockcode[J].IEEE Trans on Wireless Commun.2005, 4(2):363-366[7]Rouquette S, Merigeault S, and Gosse K. Orthogonal fulldiversity space-time block coding based on transmit channelstate information for 4 Tx antennas. IEEE Proc Int ConfCommun, New York, 2002, Vol.1: 558-562.[8]Milleth J Klutto, Giridhar K, and Jalihal Devendra. Onchannel orthogonalization using space-time block codingwith partial feedback[J].IEEE Trans on Commun.2006, 54(6):1121-1130

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