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Deriving new quasi-orthogonal space-time block codes and relaxed designing viewpoints with full transmit diversity

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5 Author(s)
Ming-Yang Chen ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Chiang-Yu Chen ; Hua-Chieh Li ; Soo-Chang Pei
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It has been shown that a complex orthogonal design that provides full diversity and full transmission rate is not possible for more than two transmit antennas. The paper presents a new class of quasi-orthogonal space-time block codes using a group-theoretic method. The new designs can achieve full diversity for quadrature phase-shift-keying modulation, like the system using rotated constellations. Based upon the analysis of the new codes, a relaxed designing viewpoint for full diversity is proposed for arbitrary signal constellations.

Published in:

IEEE International Conference on Communications, 2005. ICC 2005. 2005  (Volume:5 )

Date of Conference:

16-20 May 2005