A scheme for the SNR estimation and its application in Doppler shift estimation of mobile communication systems

Author

Hua Jinyu ; Han, Hua ; Qingmin, Meng ; Xiaohu, You

Author_Institution

Nat. Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

1

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

24

Abstract

An average SNR (signal-to-noise ratio) estimation method, based on channel power spectrum density (PSD) analysis, is proposed here. It can be implemented by FFT to reduce operations effectively. Also, we analyze the bias of Doppler shift estimation and recommend an improved estimation method based on SNR estimation. A high estimation accuracy in wide ranges of velocity and SNR is observed from simulation results.

Keywords

Doppler shift; channel estimation; fading channels; fast Fourier transforms; mobile radio; spectral analysis; Doppler shift estimation bias; FFT implementation; SNR estimation; channel estimation frequency characteristics; channel fading rate; channel power spectrum density analysis; estimation accuracy; mobile communication systems; rapid fading channels; signal-to-noise ratio estimation; velocity range; Analytical models; Bit error rate; Channel estimation; Degradation; Doppler shift; Fading; Frequency estimation; Mobile communication; Power control; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1399909

Filename

1399909