On the Performance of an Automatic Frequency Control Loop in Dissimilar Fading Channels in the Presence of Interference

Author

Emad, Amin ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA

Volume

59

Issue

12

fYear

2011

fDate

12/1/2011 12:00:00 AM

Firstpage

3234

Lastpage

3239

Abstract

Two effects of a single interference on the performance of an automatic frequency control (AFC) loop are explained, and two measures, average switching rate and mean time to loss of lock, are presented to capture the impact of each effect. These measures are derived in closed-form expressions and single integral formulas in dissimilar fading channels with Rayleigh, Rician, and Nakagami-m distributions. The general case of modulated carriers as well as different special cases are considered. Numerical examples are provided to illustrate the effects of different fading scenarios on the performance of an AFC. The effect of maximum Doppler frequency on the performance of the AFC is also investigated.

Keywords

Nakagami channels; Rayleigh channels; Rician channels; automatic frequency control; radiofrequency interference; Nakagami-m distribution; Rayleigh distribution; Rician distribution; automatic frequency control loop; average switching rate; dissimilar fading channels; maximum Doppler frequency; mean time to loss of lock; single interference; Fading; Frequency control; Interference; Nakagami distribution; Rayleigh channels; Rician channels; Speech recognition; Automatic frequency control loop; Nakagami; Rayleigh; Rician; average switching rate; dissimilar fading channels; interference; mean time to loss of lock; outage;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2011.071111.100351

Filename

5958746