Title :
New subspace-based blind channel estimation for orthogonally coded MIMO-OFDM systems
Author :
Jian-Da Jiang ; Tzu-Chiao Lin ; See-May Phoong
Author_Institution :
Grad. Inst. of Commun. Eng. & Dept. of EE, Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Two novel subspace-based blind channel estimation methods for orthogonally coded multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems with more than two transmit antennas are proposed in this paper. The proposed methods exploit the null space induced by the orthogonal space-time block codes (OSTBC). They can be applied to systems with one or more receive antennas. Simulation results show that accurate estimates can be obtained.
Keywords :
OFDM modulation; antenna arrays; channel estimation; receiving antennas; space-time block codes; transmitting antennas; OSTBC; orthogonal space time block codes; orthogonally coded MIMO OFDM systems; receive antennas; subspace based blind channel estimation; transmit antennas; Blind equalizers; Channel estimation; MIMO; Mathematical model; OFDM; Receiving antennas; Transmitting antennas; MIMO; OFDM; blind channel estimation; orthogonal space-time block code (OSTBC);
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location :
Florence
DOI :
10.1109/ICASSP.2014.6854854
