Effect of a Cochannel Interferer on an Automatic Frequency Control Loop in Fading Channels

Author

Emad, Amin ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB

fYear

2009

fDate

5-8 April 2009

Firstpage

1

Lastpage

6

Abstract

The mean time to loss of lock and the average switching rate of an automatic frequency control loop operating in fading in the presence of a single interferer are derived. Closed-form expressions and integral form formulas are derived for the general case of modulated carriers as well as important special cases of similar modulations and unmodulated carriers. The general results include, as special cases, some previous more restricted results. Fading channels are assumed to be independent non-identically distributed (i.n.d.) with Rayleigh, Rician and Nakagami-m distributions while the special case of independent identically distributed (i.i.d.) channels is also considered. Corresponding numerical examples are provided and discussed to illustrate the results.

Keywords

Nakagami channels; Rayleigh channels; Rician channels; cochannel interference; Nakagami-m distributions; Rayleigh distributions; Rician distributions; automatic frequency control loop; average switching rate; closed-form expressions; cochannel interferer; fading channels; independent identically distributed channels; unmodulated carriers; Automatic frequency control; Automatic speech recognition; Control systems; Detectors; Fading; Filters; Interference; Rayleigh channels; Rician channels; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE

Conference_Location

Budapest

ISSN

1525-3511

Print_ISBN

978-1-4244-2947-9

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2009.4917694

Filename

4917694