Implications of propagation uncertainties in frequency sharing analyses
Abstract
Frequency sharing analyses are used for a variety of spectrum management purposes. These applications include procedures for identifying frequency assignment coordination requirements, the planning of telecommunication services, the derivation of frequency sharing criteria, and detailed Electromagnetic Compatibility (EMC) analyses. An examination of interfering signal power levels that are exceeded for no more than some specified percentage(s) of time is generally required in frequency sharing analyses. Also, depending on the application, an analysis of the desired signal power levels exceeded for at least some specified time percentage(s) is needed. These evaluations of the desired or interfering signal power levels are based on service quality objectives, equipment parameter values, and propagation predictions. The latter two factors embody uncertainties that affect not only service quality, but also spectrum utilization efficiency. The objectives of various frequency sharing analysis applications and the potential consequences of analytical uncertainties were considered. Analytical techniques used in frequency sharing analyses and the associated sources of analytical uncertainties were reviewed. Finally, the implications of propagation uncertainties in frequency sharing analyses were examined in light of other analytical uncertainties. The implications of propagation prediction uncertainties depend on the frequency sharing analysis application and can range from unacceptable interference to inefficient use of the spectrum.
- Publication:
-
In AGARD Propagation Aspects of Frequency Sharing
- Pub Date:
- March 1983
- Bibcode:
- 1983pafs.agarT....S
- Keywords:
-
- Electromagnetic Compatibility;
- Electromagnetic Interference;
- Error Analysis;
- Spectrum Analysis;
- Correlation;
- Flux Density;
- Predictions;
- Signal Processing;
- Wave Propagation;
- Communications and Radar