Improved Frequency Domain SNR Estimator Using DCT in Mobile Fading Channels

Author

Kim, Sungtae ; Park, Goohyun ; Yu, Takki ; Yu, Hyunkyu ; Lee, JaeGu ; Hong, Daesik

Author_Institution

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

Volume

4

fYear

2006

fDate

7-10 May 2006

Firstpage

1898

Lastpage

1902

Abstract

Signal-to-noise ratio (SNR) measurement is required in many channel-adaptive techniques and radio resource management methods for mobile radio communication systems. In this paper, the factors that degrade the MSE performance of the conventional frequency domain SNR estimator in high SNR region are analyzed. Based on this analysis, we propose two improved frequency domain SNR estimators which employ windowing and discrete cosine transform (DCT) to suppress the leakage of the received fading signal´s frequency spectrum. The simulation results show that the proposed methods remarkably improve the MSE performance for high SNR region (ges15 dB) in mobile fading channels

Keywords

discrete cosine transforms; fading channels; frequency-domain analysis; mobility management (mobile radio); DCT; channel-adaptive techniques; discrete cosine transform; frequency domain SNR estimator; mobile fading channels; mobile radio communication systems; radio resource management methods; signal-to-noise ratio; Degradation; Discrete cosine transforms; Fading; Frequency domain analysis; Frequency estimation; Land mobile radio; Performance analysis; Resource management; Signal analysis; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683177

Filename

1683177