DocumentCode :
1548114
Title :
From electromagnetics to system performance: a new method for the error-rate prediction of atmospheric communications links
Author :
Vorst, André Vander ; Vasseur, Hugues ; Vyncke, Christian ; Byrne, César Amaya ; Vanhoenacker-Janvier, Danielle
Author_Institution :
Microwaves Lab., Univ. Catholique de Louvain, Belgium
Volume :
15
Issue :
4
fYear :
1997
fDate :
5/1/1997 12:00:00 AM
Firstpage :
656
Lastpage :
666
Abstract :
An original and general method is proposed to predict the impact of electromagnetic effects due to the environment on the error performance of microwave communications systems. The method is based on the concept of a process-oriented model which consists of a simplified representation of the physical phenomenon responsible for transmission impairments and simulates its influence on the signals received by any given communications link. The method yields a thorough characterization of the system impairments in both the time domain, by calculating the fluctuations of the received signal during the evolution of the physical process, and the frequency domain, by inferring the communication channel transfer function from the frequency dependence of the received waveform. In addition, by introducing the simulated channel transfer function as a filter in a communications system simulation software, the method evaluates the degradation induced in the system performance. Three applications as different as scintillation due to turbulence in clouds, depolarization by rain and ice crystals, and interference in the presence of diffraction on obstacles demonstrate the ability of the method to deal with actual radio-communications system impairments
Keywords :
atmospheric turbulence; clouds; digital simulation; electromagnetic wave diffraction; electromagnetic wave polarisation; error statistics; frequency-domain analysis; microwave links; microwave propagation; radiofrequency interference; rain; telecommunication channels; telecommunication computing; time-domain analysis; transfer functions; tropospheric electromagnetic wave propagation; atmospheric communications links; clouds; communication channel transfer function; communications link; communications system simulation software; diffraction; electromagnetic effects; error performance; error rate prediction; filter; frequency domain; ice crystals; interference; microwave communications systems; process oriented model; rain depolarization; received signal fluctuations; received waveform; scintillation; simulated channel transfer function; system impairments; system performance; time domain; transmission impairments; turbulence; Communication channels; Electromagnetics; Filters; Fluctuations; Frequency dependence; Frequency domain analysis; Microwave communication; Signal processing; System performance; Transfer functions;
fLanguage :
English
Journal_Title :
Selected Areas in Communications, IEEE Journal on
Publisher :
ieee
ISSN :
0733-8716
Type :
jour
DOI :
10.1109/49.585776
Filename :
585776
Link To Document :
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