Doppler Shift Estimation for Low Signal-Noise-Ratio Environment in Mobile Communication Systems

Author

Hua, Jingyu ; Bao, Junhua ; Xu, Zhijiang ; Meng, Limin ; Li, Gang

Author_Institution

Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

A novel iterative Doppler shift estimator is proposed in this letter for the Doppler shift estimation in very low signal- noise-ratio (SNR) environment. The proposed method exploits the logarithm envelope (LE) of the mobile propagation channel, and iteratively finds the minimum mean square error (MMSE) estimation of the Doppler shift. Extensive simulation results conducted under a wide range of the noise corruption clearly show that our proposed Doppler shift estimation method substantially outperforms all existing estimators.

Keywords

Doppler shift; iterative methods; least mean squares methods; mobile communication; iterative Doppler shift estimation; logarithm envelope; minimum mean square error estimation; mobile communication; mobile propagation channel; AWGN; Additive white noise; Doppler shift; Estimation error; Maximum likelihood estimation; Mean square error methods; Mobile communication; Signal to noise ratio; Working environment noise; Yield estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.452

Filename

4678361