Parameter estimation of measured channels in mobile MIMO OFDM system

Author

Enescu, Mihai ; Herdin, Markus ; Roman, Tho ; Koivunen, Visa

Author_Institution

Lab. of Signal Process. & Comput. Technol., Helsinki Univ. of Technol., Espoo, Finland

fYear

2004

fDate

18-21 Dec. 2004

Firstpage

123

Lastpage

126

Abstract

In this paper the feasibility of adaptive channel parameter estimation method for measured MIMO channels is studied. Our investigations are based on building a state-space model for the MIMO OFDM transmission, that accounts also for the 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. Our simulations are based on measured MIMO channels and show that reliable channel estimation can be performed under realistic conditions.

Keywords

adaptive Kalman filters; adaptive antenna arrays; channel estimation; correlation theory; mobile radio; receiving antennas; time-varying channels; transmitting antennas; Kalman filter; adaptive channel parameter estimation method; mobile MIMO OFDM system; receiver antenna array; spatial correlation; state-space model; time-varying channel; transmitter antenna array; Antenna arrays; Antenna measurements; Channel estimation; MIMO; OFDM; Parameter estimation; Receiving antennas; Time-varying channels; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2004. Proceedings of the Fourth IEEE International Symposium on

Print_ISBN

0-7803-8689-2

Type

conf

DOI

10.1109/ISSPIT.2004.1433703

Filename

1433703