Level crossing rate estimation with Doppler adaptive noise suppression technique in frequency domain

Author

Park, Goohyun ; Hong, Daesik ; Kang, Changeon

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

2

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

1192

Abstract

The maximum Doppler frequency, or, equivalently, the mobile speed, is very useful information for optimizing the performance of many wireless communication systems. The paper proposes an improved method for estimating the maximum Doppler frequency based on the level crossing rate (LCR) estimator. To reduce the effect of additive noise, the proposed algorithm uses a novel Doppler adaptive noise suppression (DANS) process in the frequency domain. The proposed DANS process does not require additional channel information such as signal-to-noise ratio (SNR).

Keywords

Doppler effect; Gaussian noise; Rayleigh channels; Rician channels; frequency estimation; interference suppression; mobile radio; velocity; Doppler adaptive noise suppression; Rayleigh fading channel; Rician fading channel; SNR; additive Gaussian noise; frequency domain; level crossing rate estimation; maximum Doppler frequency estimation; mobile radio; mobile speed; signal-to-noise ratio; Additive noise; Autocorrelation; Fading; Frequency domain analysis; Frequency estimation; Gaussian noise; Noise level; Noise robustness; Scattering; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285210

Filename

1285210