Title :
Performance Measures of Automatic Frequency Control Corrupted by Interference and Fading in Dual Dissimilar Channels
Author :
Emad, Amin ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB
Abstract :
The mean time to loss of lock and the average switching rate of an automatic frequency control (AFC) loop are derived in this paper for the case of two received signals in dissimilar fading channels. The general case of modulated carriers is considered while the results are also applicable to unmodulated carriers. The channels are assumed to have Rayleigh, Rician and Nakagami-m distributions. Numerical examples are provided to illustrate the effect of these fading scenarios on the performance of an AFC in the presence of cochannel interference.
Keywords :
Nakagami channels; Rayleigh channels; Rician channels; automatic frequency control; cochannel interference; radiofrequency interference; telecommunication control; AFC loop; Nakagami-m distribution; Rayleigh distribution; Rician distribution; automatic frequency control; carrier modulation; cochannel interference; dual dissimilar fading channel; Automatic frequency control; Automatic speech recognition; Fading; Frequency measurement; Interference; Loss measurement; Performance loss; Rayleigh channels; Rician channels; Voltage-controlled oscillators;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073793
