Title :
Research on an iterative algorithm of LS channel estimation in MIMO OFDM systems
Author :
Qiao, Yantao ; Yu, Songyu ; Su, Pengcheng ; Zhang, Lijun
Author_Institution :
Inst. of Image Commun. & Inf. Process., Shanghai Jiaotong Univ., China
fDate :
3/1/2005 12:00:00 AM
Abstract :
An iterative Least Square (LS) channel estimation algorithm for MIMO OFDM systems was proposed in this paper. Compared to common LS channel estimation, this algorithm can greatly improve estimation accuracy, and the low-pass filtering in time domain reduces AWGN and ICI significantly. MIMO OFDM system with this algorithm also works well in mobile situations. Simulation results have shown good MSE performance for this algorithm.
Keywords :
MIMO systems; OFDM modulation; antenna arrays; channel estimation; iterative methods; least mean squares methods; low-pass filters; LS; MIMO; OFDM systems; iterative algorithm; least square channel estimation; low-pass filtering; multiinput-multioutput system; orthogonal frequency division multiplexing; Channel estimation; Fading; Filtering; Iterative algorithms; Least squares approximation; MIMO; OFDM; Receiving antennas; Space technology; Transmitting antennas; Channel estimation; MIMO; OFDM; iterative algorithm;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2004.842524
