Title :
Two-dimensional MMSE channel estimation for OFDM systems with transmitter diversity
Author :
Gi Jeon, Won ; Hyun Paik, Kyung ; Soo Cho, Yong
Author_Institution :
Sch. of Electr. & Electron. Eng., Chungang Univ., Seoul, South Korea
fDate :
6/23/1905 12:00:00 AM
Abstract :
A two-dimensional pilot-symbol aided (2-D PSA) channel estimation technique for coherent orthogonal frequency-division multiplexing (OFDM) systems with transmitter diversity is proposed. The 2-D PSA channel estimator and the corresponding orthogonality condition of the set of pilot symbols are derived under minimum mean-square error (MMSE) criterion for OFDM systems with transmitter diversity. The proposed estimator is shown to be accurate and effective for tracking variations of channels between multiple transmitter antennas and receiver antennas
Keywords :
OFDM modulation; antenna arrays; diversity reception; least mean squares methods; transmitting antennas; 2D MMSE channel estimation; 2D PSA channel estimator; 2D pilot-symbol aided channel estimation; MMSE criterion; channels variations tracking; coherent OFDM systems; coherent orthogonal frequency-division multiplexing; minimum mean-square error; multiple receiver antennas; multiple transmitter antennas; transmitter diversity; AWGN; Channel estimation; Computational complexity; Delay estimation; Frequency division multiplexing; Mobile communication; OFDM; Radio transmitters; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956486
