dc.contributor.advisor | Altıntaş, Ayhan | |
dc.contributor.author | Göktaş, Polat | |
dc.date.accessioned | 2016-07-01T11:10:43Z | |
dc.date.available | 2016-07-01T11:10:43Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/11693/30018 | |
dc.description | Cataloged from PDF version of article. | en_US |
dc.description.abstract | In this study, propagation link analysis and implementation of prediction
models for the design of fixed terrestrial point-to-point systems are aimed.
Different propagation models in the literature are examined as case studies and
comparisons are made. Rec. ITU-R P.530 Model is analyzed in detail. The worst
month link availability is investigated for terrestrial microwave LOS/NLOS radio
links operating in NATO Band 3+ (1350-2690 MHz) and NATO Band 4 (4400-
5000 MHz) frequency bands. The calculation of Bullington model of diffraction
loss is extended for LOS path case and determination of reflection points on
the terrain profile is improved. Several terrestrial microwave LOS/NLOS radio
links are analyzed using the propagation parameters such as TX (transmitter)
and RX (receiver) station coordinates, path length, frequency, antenna heights
above ground level, antenna gains, polarization, radio refractivity gradient, time
percentage, target SNR (Signal to Noise Ratio), bandwidth, digital terrain elevation
and climate data. The calculation of the received power with the effect
of the ground reflection is developed to calculate the fade margin in the defined
microwave LOS/NLOS radio links. Received power is calculated by taking into
consideration the attenuation due to rain and atmospheric gases, diffraction loss
and the effect of multipath fading due to reflection. The validity of the implementation
of link analysis is justified by comparison with the commercial ATDI
ICS telecom software and the measurement data existing in the literature over
sample microwave LOS/NLOS radio links. | en_US |
dc.description.statementofresponsibility | Göktaş, Polat | en_US |
dc.format.extent | xv, 87 leaves, charts | en_US |
dc.language.iso | English | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Rec. ITU-R P.530 | en_US |
dc.subject | Multipath fading | en_US |
dc.subject | Link availability | en_US |
dc.subject | Received power | en_US |
dc.subject | Line-of-sight (LOS) and non line-of-sight (NLOS) microwave radio links | en_US |
dc.subject.lcc | XX(904931.1) | en_US |
dc.title | Analysis and implementation of prediction models for the design of fixed terrestrial point-to-point systems | en_US |
dc.type | Thesis | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.publisher | Bilkent University | en_US |
dc.description.degree | M.S. | en_US |
dc.identifier.itemid | B149499 | |