A Novel Unitary Space-Time Modulation

Zou Li; Zhao Yu-ping; Wang Bing; Xiang Hai-ge; Liang Qing-lin

Volume 26 Issue 7

Jul. 2004

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Article Navigation > Journal of Electronics & Information Technology > 2004 > 26(7): 1009-1016

Zou Li, Zhao Yu-ping, Wang Bing, Xiang Hai-ge, Liang Qing-lin. A Novel Unitary Space-Time Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(7): 1009-1016.

Citation:

Zou Li, Zhao Yu-ping, Wang Bing, Xiang Hai-ge, Liang Qing-lin. A Novel Unitary Space-Time Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(7): 1009-1016.

Zou Li, Zhao Yu-ping, Wang Bing, Xiang Hai-ge, Liang Qing-lin. A Novel Unitary Space-Time Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(7): 1009-1016.

Citation:

Zou Li, Zhao Yu-ping, Wang Bing, Xiang Hai-ge, Liang Qing-lin. A Novel Unitary Space-Time Modulation[J]. Journal of Electronics & Information Technology, 2004, 26(7): 1009-1016.

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A Novel Unitary Space-Time Modulation

Received Date: 2003-03-21
Rev Recd Date: 2003-06-05
Publish Date: 2004-07-19

Abstract

Abstract

In order to improve the spectral efficiency, this paper proposes a new framework for designing a modulation consisting of more than one modulation method. The new modulation method is able to provide better spectral efficiency while preserving the merits of Unitary Space-Time Modulation (USTM), such as low error rate and demodulation simplicity. The necessary condition for this set of modulations is presented and several different options satisfying the condition are given. Finally a novel modulation called Differential Phase Unitary Space-Time Modulation (DPUSTM) is designed as a special case. DPUSTM, which consists of USTM and Differential Phase-Shift Keying (DPSK) modulation, is not only easier to improve the spectral efficiency than USTM, but also simpler to demodulate. The novel modulation can achieve low bit error rate as UST signals and be exploited in multi-rate data communication. The simulation results not only verify the theoretical analysis, but also show that DPUSTM provides a better performance than USTM and DSTM.

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References(1)

References

Larsson E G. Unitary nonuniform space-time constellations for the broadcast channel[J].IEEE Commun. Letters.2003, 7(1):21-23[2]Hochwald B M, Marzetta T L. Unitary space-time modulation for multiple-antenna communication in Rayleigh flat fading[J].IEEE Trans. on Information Theory.2000, 46(2):543-564[3]Hochwald B M, Sweldens W. Differential unitary space-time modulation. IEEE Trans.on Commun. 2000, 48(12): 2041-2052.[4]Hughes B L. Differential space-time modulation[J].IEEE Trans. on Information Theory.2000,46(7):2567-2578[5]Marzetta T L, Hochwald B M. Capacity of a mobile multiple-antenna communication link in Rayleigh flat-fading[J].IEEE Trans. on Information Theory.1999, 45(1):139-157[6]Hochwald B M, Marzetta T L, Rich ardson T J, Rudiger W S. Systematic design of unitary space-time constellations[J].IEEE Trans. on Information Theory.2000, 46(6):1962-1973[7]Liang Xue-bin, Xia Xiang-gen. Unitary signal constellations for differential space-time modulation with two transmit antennas: Parametric codes, optimal designs and bounds[J].IEEE Trans. on Information Theory.2002, 48(8):2291-2232[8]Shokrollahi A, Hassibi B, Hochwald B M, Sweldens W. Representation theory for high-rate multiple-antenna code design[J].IEEE Trans. on Information Theory.2001, 47(6):2335-2367[9]程云鹏.矩阵论.第二版,西安:西北工业大学出版社,2001:126页.

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