Title :
A signal perturbation free semi-blind MRT MIMO channel estimation approach
Author :
Chen, Chung ; Zhu, Wei-Ping ; Meng, Qingmin
Author_Institution :
Inst. of Signal Process. & Transm., Nanjing Univ. of Posts & Telecommun., Nanjing, China
fDate :
May 30 2010-June 2 2010
Abstract :
In this paper, an efficient signal-perturbation-free semi-blind approach is proposed for flat-fading channel estimation of multiple-input multiple-output (MIMO) systems with maximum ratio transmission (MRT). A novel transmit scheme is developed based on the eigenvalue decomposition of the correlation matrix of the transmitted signal. The new scheme is to send a small volume of data bearing the information of the correlation matrix to the receiver for the cancellation of the signal perturbation error. Computer simulations show that the proposed approach significantly outperforms the closed-form semiblind estimation method (CFSB) in terms of the MSE of the beamforming vector estimate.
Keywords :
MIMO communication; array signal processing; channel estimation; correlation methods; eigenvalues and eigenfunctions; fading channels; MIMO channel estimation approach; beamforming vector estimation; correlation matrix; eigenvalue decomposition; flat fading channel; maximum ratio transmission; semiblind estimation method; signal perturbation; Array signal processing; Channel estimation; Computer errors; Eigenvalues and eigenfunctions; MIMO; Matrix decomposition; Random variables; Receiving antennas; Signal processing; Transmitters;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537121
