SNR Estimation for Non-Coherent M-FSK Receivers in Rice Fading Environment

Author

Javed, U. ; Hassan, Syed Ali

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Nat. Univ. of Sci. & Technol. (NUST), Islamabad, Pakistan

Volume

17

Issue

9

fYear

2013

fDate

Sep-13

Firstpage

1786

Lastpage

1789

Abstract

The problem of estimating the average signal-to-noise ratio (SNR) in a non-coherent M-ary frequency shift keying (NCMFSK) receiver has been considered, where the transmitted signal is propagated over a noisy Ricean fading channel. Closed-form maximum likelihood estimators for both the data-aided and non data-aided scenarios have been derived using the approximations of the modified Bessel functions. Numerical results are presented and the performance of the estimators is evaluated by comparing with a Cramer-Rao bound.

Keywords

Rician channels; frequency shift keying; maximum likelihood estimation; radio receivers; signal processing; Bessel functions; Cramer-Rao bound; NCMFSK receiver; Ricean fading channel; SNR estimation; average signal-to-noise ratio; closed form maximum likelihood estimators; noncoherent M-FSK receivers; noncoherent M-ary frequency shift keying; rice fading environment; Approximation methods; Fading; Frequency shift keying; Maximum likelihood estimation; Receivers; Signal to noise ratio; Rice fading; SNR estimation; maximum likelihood; non-coherent FSK;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.070913.131171

Filename

6560032