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Blind Channel Estimation for Orthogonal STBC in MISO Systems
 

Summary: 1
Blind Channel Estimation for Orthogonal STBC in
MISO Systems
Elzbieta Beres, and Raviraj Adve
University of Toronto
10 King's College Road
Toronto, ON M5S 3G4, Canada
Abstract--This paper presents a closed-form blind channel es-
timation scheme for Alamouti's and other orthogonal space-time
block codes. Unlike other blind algorithms, the scheme is able to
estimate the channels, to within a phase constant, in multiple-input
single-output systems, i.e., systems that employ only one receive
antenna. The channel matrix is estimated from the eigenvalue de-
composition of the fourth order cumulant matrix of the output sig-
nal. The performance of the scheme depends upon the accuracy of
the estimated cumulants, and thus a scheme to improve the cu-
mulant matrix estimate is suggested. Using these improved cumu-
lants, the algorithm performs very well in slowly fading channels.
I. INTRODUCTION
The advantages of using multiple transmit and/or receive

  

Source: Adve, Raviraj - Department of Electrical and Computer Engineering, University of Toronto

 

Collections: Engineering