Title :
Blind MIMO equalization and joint-diagonalization criteria
Author :
Comon, Pierre ; Moreau, Eric
Author_Institution :
I3S, Sophia-Antipolis, France
Abstract :
We consider the problem of convolutive blind signal separation through the optimization of contrast functions. We show that some links between contrasts and joint diagonalization criteria can be exhibited in the convolutive case. This allows us to devise a constructive algorithm performing MIMO blind equalization, with the help of a joint approximate diagonalization of a set of matrices built from the observations. This analytical algorithm can be run block-wise, which is appropriate in the context of short burst communications
Keywords :
blind equalisers; convolution; matrix algebra; multiuser channels; optimisation; approximate matrix diagonalization; blind MIMO equalization; block-wise algorithm; contrast function optimization; convolutive blind signal separation; joint diagonalization criteria; short burst communications; Algorithm design and analysis; Blind equalizers; Context; Deconvolution; Filters; Interference; Iterative algorithms; MIMO; Multiaccess communication; Statistics;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940215
