Title :
Space-time MMSE channel estimation for MIMO-OFDM system with spatial correlation
Author :
Miao, Honglei ; Juntti, Markku J.
Author_Institution :
Centre for Wireless Commun., Oulu Univ., Finland
Abstract :
A space-time channel estimator for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system of the HIPERLAN/2 type with a moderate complexity is proposed. For the correlated receive antenna, the conventional time domain MMSE is improved by virtue of the spatial correlation. The mean square error performance of the algorithms is analyzed. Its performance is illustrated by the analysis and computer simulations. The derived algorithms provide good performance with a moderate complexity.
Keywords :
OFDM modulation; channel estimation; correlation theory; least mean squares methods; receiving antennas; space-time codes; wireless LAN; HIPERLAN/2; MIMO system; MIMO-OFDM system; MMSE; correlated receive antenna; mean square error performance; multiple-input multiple-output system; orthogonal frequency division multiplexing; space-time channel estimator; spatial correlation; Antenna arrays; Channel estimation; Covariance matrix; Frequency estimation; Mean square error methods; OFDM; Performance analysis; Receiving antennas; Scattering; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390568
