Title :
Second-order blind MIMO channel identification based on correlative coding: asymptotic performance analysis
Author :
Xavier, João ; Barroso, Victor
Author_Institution :
Inst. de Sistemas e Robotica, Inst. Superior Tecnico, Lisbon, Portugal
Abstract :
We study the asymptotic performance of a recently proposed 2nd order statistics (SOS) method for blind identification of multiple-input multiple-output (MIMO) systems driven by colored inputs, i.e., with distinct 2nd order spectra. The spectral asymmetry may be achieved with a correlative filter in each source. We establish the asymptotic normality of the MIMO channel estimate and obtain its asymptotic covariance matrix. Optimal design of the correlative pre-filters can be inferred from the presented theoretical analysis
Keywords :
MIMO systems; correlation methods; covariance matrices; filtering theory; parameter estimation; statistical analysis; telecommunication channels; 2nd order spectra; MIMO channel identification; asymptotic performance analysis; blind identification; channel estimation; colored inputs; correlative coding; correlative filter; covariance matrix; multiple-input multiple-output systems; optimal pre-filters design; second-order statistics; spectral asymmetry; Covariance matrix; Equations; Filtering theory; Finite impulse response filter; Information filtering; Information filters; MIMO; Performance analysis; Statistical analysis; Statistics;
Conference_Titel :
Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7123-2
DOI :
10.1109/ISIT.2001.935955
