Title
Second order blind equalization in multiple input multiple output FIR systems: a weighted least squares approach.
Abstract
Multipath propagation appears to be a typical limitation in mobile digital communications where it leads to severe intersymbol interference. The classical techniques to overcome this problem use either periodically sent training sequences or blind approaches. This paper addresses the blind identification of FIR multiple input multiple output (MIMO) transfer functions in the case where the number of inputs is strictly less than the number of outputs. We consider a second order identification providing signals extraction up to a regular instantaneous mixture matrix. A novel method of second order channel estimation is presented. Basically exploiting the simultaneous MA and AR nature of the observations, it displays however a considerable improvement as compared to the original linear prediction approach. Performance study and comparison with the existing approach is provided by computer simulations.
Year
DOI
Venue
1996
10.1109/ICASSP.1996.547950
ICASSP
Keywords
Field
DocType
FIR filters,MIMO systems,autoregressive moving average processes,digital communication,equalisers,filtering theory,least squares approximations,matrix algebra,mobile communication,multipath channels,parameter estimation,prediction theory,transfer functions,AR observations,AR parameters,ARMA,MA observations,MIMO transfer functions,blind identification,computer simulations,intersymbol interference,linear prediction,mobile digital communications,multipath propagation,multiple input multiple output FIR systems,performance,regular instantaneous mixture matrix,second order blind equalization,second order channel estimation,second order identification,signal extraction,weighted least squares
Multipath propagation,Least squares,Intersymbol interference,Computer science,Control theory,MIMO,Communication channel,Linear prediction,Transfer function,Blind equalization
Conference
Volume
ISBN
Citations 
5
0-7803-3192-3
25
PageRank 
References 
Authors
2.16
6
3
Name
Order
Citations
PageRank
A. Y. Gorokhov120923.37
P. Loubaton291781.08
Eric Moulines33248337.64