Title :
Semi-blind MIMO channel tracking using auxiliary particle filtering
Author :
Chin, W.H. ; Ward, D.B. ; Constantinides, A.G.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
In multiple antenna communications, the impulse responses of the channels are frequently assumed to be fixed. However, if multiple antennas are used in mobile terminals, this assumption is weakened. In this paper, we propose using a sequential Monte Carlo method, which is robust even in non-Gaussian environments, in conjunction with current detection algorithms for tracking the channel matrix to improve the performance of multiple antenna systems under time varying channels.
Keywords :
MIMO systems; Monte Carlo methods; antenna arrays; error statistics; filtering theory; land mobile radio; matrix algebra; multiuser channels; multiuser detection; radio tracking; receiving antennas; time-varying channels; transient response; transmitting antennas; auxiliary particle filtering; channel matrix tracking; detection algorithms; impulse responses; mobile terminals; multiple antenna communications; multiple receive antennas; multiple transmit antennas; nonGaussian environments; semi-blind MIMO channel tracking; sequential Monte Carlo method; time varying channels; Biomedical signal processing; Bit error rate; Educational institutions; Filtering; MIMO; Particle filters; Particle tracking; Receiving antennas; Time varying systems; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188093
