Joint channel and symbol estimation by oblique projections

Author

Yu, Xiang ; Tong, Lang

Author_Institution

Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA

Volume

49

Issue

12

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

3074

Lastpage

3083

Abstract

The problem of simultaneous blind channel and symbol estimation of a single-input multiple-output (SIMO) communication channel is considered. It is shown that the outer product of the channel vector and the channel input sequence can be obtained by a linear estimator that has the finite sample convergence property. Furthermore, this estimator can be obtained by the use of oblique projections. An order detection algorithm that avoids the use of subjective thresholding is also proposed. Applications to multiuser detection are also considered

Keywords

interference suppression; intersymbol interference; least squares approximations; multipath channels; parameter estimation; signal detection; telecommunication channels; ISI removal; SIMO communication channel; blind channel identification; blind symbol estimation; channel input sequence; channel vector; finite sample convergence; intersymbol interference; joint channel estimation; linear estimator; multipath channels; multiuser detection; noisy environment; order detection algorithm; outer product; single-input multiple-output channel; subjective thresholding; symbol estimation; total least squares oblique projection; Communication channels; Convergence; Detection algorithms; Iterative algorithms; Least squares approximation; Least squares methods; Multiaccess communication; Power capacitors; Smoothing methods; Vectors;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.969515

Filename

969515