Title :
Channel estimation for space-time block codes in frequency-flat channels
Author :
Nefedov, Nikolai
Abstract :
The paper addresses different approaches for flat fading channel estimation in the HSDPA/CDMA environment with multiple antennas. In particular, we compare semi-blind subspace and training-based channel estimation for orthogonal and non-orthogonal space-time block codes. It is found that application of subspace channel estimation in flat fading channels is rather limited. while estimation based on training symbols provides acceptable performance.
Keywords :
MIMO systems; block codes; channel coding; channel estimation; code division multiple access; fading channels; packet radio networks; space-time codes; CDMA; HSDPA; MIMO channels; channel coding; flat-fading channel estimation; frequency-flat channels; high-speed downlink packet access; multiple antennas; nonorthogonal codes; orthogonal codes; semi-blind subspace channel estimation; space-time block codes; space-time codes; training-based channel estimation; AWGN; Block codes; Channel estimation; Downlink; Fading; Frequency estimation; Iterative methods; MIMO; Multiaccess communication; Transmitting antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN :
0-7803-8523-3
DOI :
10.1109/PIMRC.2004.1370883
