A Joint Estimator of SNR and Mobile Speed in Wireless Communications

Author

Hua, Jingyu ; Meng, Limin ; Xu, Xiaojiang ; Xu, Zhijiang ; Wang, Dongming

Author_Institution

Zhejiang Provincial Key Lab. of Optical Commun., Zhejiang Univ. of Tech., Hangzhou, 310032, China; National Communication Research Laboratory, Southeast University, Nanjing, China. Email: eehjy@zjut.edu.cn

fYear

2007

fDate

17-19 Oct. 2007

Firstpage

121

Lastpage

125

Abstract

Recently, signal-to-noise ratio (SNR) and mobile speed estimations have drawn a great amount of attention due to their comprehensive use in modern adaptive signal processing. Hence after investigating a double sampling rate (DSR) signal processing technique, we propose a joint estimator to estimate these two parameters, where we utilize the fact that the autocorrelation function (ACF) of time-varying wireless channel is related to the SNR and Doppler Shift, the latter of which is also related to mobile speed. We verify the proposed algorithm by computer simulation, and the results have showed a good SNR-independent peformance in a wide range of velocities and SNRs.

Keywords

AWGN; Additive white noise; Doppler shift; Fading; Gaussian noise; Maximum likelihood estimation; Optical noise; Signal processing algorithms; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems, 2007 IEEE Workshop on

Conference_Location

Shanghai, China

ISSN

1520-6130

Print_ISBN

978-1-4244-1222-8

Electronic_ISBN

1520-6130

Type

conf

DOI

10.1109/SIPS.2007.4387530

Filename

4387530