Title :
Deriving new quasi-orthogonal space-time block codes and relaxed designing viewpoints with full transmit diversity
Author :
Chen, Ming-Yang ; Chen, Chiang-Yu ; Li, Hua-Chieh ; Pei, Soo-Chang ; Cioffi, John M.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
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.
Keywords :
block codes; diversity reception; group theory; quadrature phase shift keying; space-time codes; transmitting antennas; full transmit diversity; group-theoretic method; quadrature phase-shift-keying modulation; quasi-orthogonal space-time block codes; relaxed designing viewpoints; rotated signal constellations; space-time codes; transmit antennas; Bit error rate; Block codes; Constellation diagram; Design methodology; Mathematics; Maximum likelihood decoding; Phase modulation; Phase shift keying; Signal analysis; Transmitting antennas;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1494914
