Title :
Transmitter diversity for robustness to channel estimation errors
Author :
Kurt, T. ; Delic, Hakan
Author_Institution :
Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ont., Canada
fDate :
3/3/2005 12:00:00 AM
Abstract :
A joint space-time (ST) coding and constellation rotation system is consider in the presence of imperfect channel state information. The combined system with two transmit antennas is shown to be more resistant to channel estimation errors than ST coding. Experiments involving channel estimation errors agree with the related theory reported in the literature.
Keywords :
channel estimation; diversity reception; quadrature phase shift keying; space-time codes; QPSK; ST coding; channel estimation errors; constellation rotation; imperfect channel state information; quadrature phase-shift keying; space-time (ST) coding; transmit antennas; transmitter diversity; wireless communication systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20047510
