Title :
Robust channel estimation in a mobile MIMO OFDM system
Author :
Kim, Jihyung ; Park, Byungjoon ; Daesik Hong
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
We investigate a channel estimation technique based on a comb-type pilot arrangement for a MIMO OFDM system. Especially, when the channel varies with time, an efficient channel estimation technique with channel correlation is proposed for accurate estimation. Simulation results show that the proposed channel estimator is accurate and effective for tracking variations of channels between multiple transmit antennas and receive antennas in time-varying radio channels.
Keywords :
MIMO systems; OFDM modulation; channel estimation; correlation methods; mobile radio; time-varying channels; channel estimator; channel variation tracking; comb-type pilot method; mobile MIMO OFDM system; multiple transmit/receive antennas; robust channel estimation; time-correlation; time-varying radio channels; Channel estimation; Cities and towns; Frequency estimation; Information technology; MIMO; OFDM; Receiving antennas; Robustness; Transmitting antennas; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1388897
