Title :
High-rate space-time block coding schemes
Author :
Nguyen, Duy H N ; Nguyen, Ha H. ; Tuan, Hoang D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK
Abstract :
A rate-6/4 full-diversity orthogonal space-time block code (STBC) is constructed for QPSK and 2 transmit antennas by applying constellation scaling and rotation to the set of quaternions used in Alamouti code. Also given is a rate-9/8 full-diversity quasi-orthogonal space-time block code (QOSTBC) for 4 transmit antennas. Lastly, a rate-10/8 code is presented for 4 transmit antennas. Simulation results indicate that these high-rate codes achieve better throughputs in the high signal-to-noise ratio region.
Keywords :
block codes; orthogonal codes; quadrature phase shift keying; space-time codes; transmitting antennas; Alamouti code; QPSK; constellation scaling; full-diversity orthogonal space-time block code; full-diversity quasiorthogonal space-time block code; high-rate space-time block coding; quaternions; transmit antenna; Block codes; Maximum likelihood decoding; Quadrature phase shift keying; Quaternions; Signal design; Signal to noise ratio; Slot antennas; Telecommunication computing; Throughput; Transmitting antennas;
Conference_Titel :
Communications and Electronics, 2008. ICCE 2008. Second International Conference on
Conference_Location :
Hoi an
Print_ISBN :
978-1-4244-2425-2
Electronic_ISBN :
978-1-4244-2426-9
DOI :
10.1109/CCE.2008.4578953
