DocumentCode
2853594
Title
Channel estimation and tracking in spatially correlated MIMO OFDM systems
Author
Enescu, Mihai ; Roman, Timo ; Koivunen, Visa
Author_Institution
Signal Process. Laboratory, Helsinki Univ. of Technol., Finland
fYear
2003
fDate
28 Sept.-1 Oct. 2003
Firstpage
347
Lastpage
350
Abstract
This paper addresses the problem of channel estimation for MIMO OFDM systems where the channels may be spatially correlated. Starting from OFDM transmission model with independent MIMO channels, we derive a new state-space model that accounts for spatial correlation at transmitter and receiver antenna arrays. Kalman filter is then applied to estimate and track the time-varying channels. Correlation parameters are also estimated from the received data.
Keywords
Kalman filters; MIMO systems; OFDM modulation; antenna arrays; channel estimation; correlation methods; receiving antennas; time-varying channels; transmitting antennas; Kalman filter; MIMO channels; OFDM transmission model; channel estimation; correlation parameters; receiver antenna arrays; spatial correlation; state-space model; time-varying channels; transmitter antenna arrays; Antenna arrays; Channel estimation; MIMO; Matrix decomposition; OFDM; Receiving antennas; Signal to noise ratio; State estimation; Transmitters; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Statistical Signal Processing, 2003 IEEE Workshop on
Print_ISBN
0-7803-7997-7
Type
conf
DOI
10.1109/SSP.2003.1289416
Filename
1289416
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