SNR Estimation in a Non-Coherent BFSK Receiver With a Carrier Frequency Offset

Author

Hassan, S.A. ; Ingram, M.A.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

59

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

3481

Lastpage

3486

Abstract

This correspondence deals with the problem of estimating average signal-to-noise ratio (SNR) for a communication link employing binary frequency shift keying (BFSK) in the presence of a carrier frequency offset (CFO). The transmitted symbols are corrupted by Rayleigh fading and additive white Gaussian noise (AWGN). We treat the CFO as a nuisance parameter and estimate it using a data statistics based estimator. This estimate is then used to design a maximum likelihood (ML) estimator to get the estimates of SNR. We also derive the Cramér-Rao bound (CRB) for the estimators and have shown the performance of both the data-aided and non-data-aided estimators.

Keywords

AWGN channels; Rayleigh channels; frequency shift keying; maximum likelihood estimation; radio receivers; AWGN; Cramer-Rao bound; Rayleigh fading; SNR estimation; additive white Gaussian noise; average signal-to-noise ratio; binary frequency shift keying; carrier frequency offset; communication link; data statistics based estimator; maximum likelihood estimator; noncoherent BFSK receiver; transmitted symbols; Fading; Frequency shift keying; Maximum likelihood estimation; Receivers; Signal to noise ratio; BFSK receiver; Rayleigh fading; SNR estimation; carrier frequency offset;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2011.2131137

Filename

5737799