SNR estimation in a non-coherent MFSK receiver with diversity combining

Author

Arshad, Abida ; Hassan, Syed Ali

Author_Institution

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

fYear

2014

fDate

4-8 Aug. 2014

Firstpage

588

Lastpage

593

Abstract

In this paper, the problem of signal-to-noise ratio (SNR) estimator design for a single-input multiple-output (SIMO) communication system employing non-coherent M-ary frequency shift keying (NCMFSK) modulation scheme is considered. The transmitted signal undergoes Rayleigh fading and additive white Gaussian noise (AWGN) and is received at a receiver with L diversity branches. Closed-form expressions of data aided (DA) and non-data aided (NDA) estimators have been derived using the maximum likelihood (ML) estimation approach. Cramer-Rao bound has been evaluated to compare the performance of the designed estimators. The effect of increasing the receiver diversity branches on the performance of estimators has been quantified.

Keywords

AWGN channels; Rayleigh channels; diversity reception; frequency shift keying; maximum likelihood estimation; radio receivers; AWGN; Cramer-Rao bound; Rayleigh fading; SNR estimation; additive white Gaussian noise; diversity combining; maximum likelihood estimation approach; noncoherent M-ary frequency shift keying modulation scheme; noncoherent MFSK receiver; nondata aided estimators; receiver diversity branches; signal-to-noise ratio estimator design; single-input multiple-output communication system; transmitted signal; Diversity reception; Fading; Maximum likelihood estimation; Receivers; Signal to noise ratio; Wireless sensor networks; Receiver Diversity Combining; SNR Estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Mobile Computing Conference (IWCMC), 2014 International

Conference_Location

Nicosia

Print_ISBN

978-1-4799-7324-8

Type

conf

DOI

10.1109/IWCMC.2014.6906422

Filename

6906422