A first-order statistical method for channel estimation

Author

Zhou, G. Tong ; Viberg, Mats ; McKelvey, Tomas

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

10

Issue

3

fYear

2003

fDate

3/1/2003 12:00:00 AM

Firstpage

57

Lastpage

60

Abstract

Multipath is a major impairment in a wireless communications environment, and channel estimation algorithms are of interest. We propose a superimposed periodic pilot scheme for finite-impulse response (FIR) channel estimation. A simple first-order statistic is used, and any FIR channel can be estimated. There is no loss of information rate but a controllable increase in transmission power. We derive the variance expression of our linear channel estimate and compare with the Cramer-Rao bound. Numerical examples illustrate the effectiveness of the proposed method.

Keywords

channel estimation; intersymbol interference; multipath channels; statistical analysis; transient response; Cramer-Rao bound; FIR channel estimation; ISI; channel equalization; channel estimation algorithms; finite-impulse response channel estimation; first-order statistic; first-order statistical method; information rate; intersymbol interference; linear channel estimate; multipath channel; periodic pilot scheme; transmission power; variance expression; wireless communications; Blind equalizers; Channel estimation; Finite impulse response filter; Higher order statistics; Information rates; Propagation losses; Sampling methods; Statistical analysis; Transmitters; Wireless communication;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2002.807864

Filename

1182084