Improved signal constellations for differential unitary space-time modulations with more than two transmit antennas

In this paper, we propose new and improved unitary signal constellations for differential unitary space-time modulations utilizing more than two transmit antennas. The proposed unitary designs are constructed from fundamental building blocks which comprise the generator matrices of diagonal cyclic c...

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Veröffentlicht in:	IEEE communications letters 2005-01, Vol.9 (1), p.7-9
Hauptverfasser:	Soh, Thian Ping, Ng, Chun Sum, Kam, Pooi Yuen
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Constellation diagram Exact sciences and technology Fading Gaussian noise Information, signal and communications theory Modulation coding Modulation, demodulation Rayleigh channels Receiving antennas Scattering Signal and communications theory Signal to noise ratio Telecommunications and information theory Transmitting antennas
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Beschreibung
Zusammenfassung:	In this paper, we propose new and improved unitary signal constellations for differential unitary space-time modulations utilizing more than two transmit antennas. The proposed unitary designs are constructed from fundamental building blocks which comprise the generator matrices of diagonal cyclic codes, and the 2/spl times/2 and 3/spl times/3 rotational matrices. The performances of the proposed codes are superior to those of previously proposed codes.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2005.01023