EMPIRICAL CHARACTERIZATION AND MODELING OF FADE DEPTH DUE TO MULTIPATH PROPAGATION AT MICROWAVE BAND
| dc.contributor.author | Aremu Olaosebikan Akanni, Ajani Adegbenro Sunday, Anie Nicholas Oliseloke, Akanbi Raymond Adebowale | |
| dc.date.accessioned | 2024-11-08T12:15:05Z | |
| dc.date.available | 2024-11-08T12:15:05Z | |
| dc.date.issued | 2018-06-03 | |
| dc.description.abstract | In communication system, signal propagates from the base station to the receiver as multitude of partial waves from different directions known as multipath propagation. This effect gives rise to fading of radio signal as the received signal strength decreases. In this work, fade depth, at microwave band signals is estimated and modeled based on the effect of secondary radio parameters such as geoclimatic factor, tropospheric radio reflectivity and refractivity gradient in the year 2017 in Ibadan, south western, Nigeria. The secondary radio parameters were obtained from temperature, relative humidity and atmospheric pressure. The values of point refractivity gradient obtained were used to figure out the geoclimatic factor, K. The results obtained shows monthly and seasonal radio refractivity gradient and geoclimatic factor K and the results affirmed that the geoclimatic factor K is region based. The percentage of time at a given fade depth is exceeded as a single frequency increases rapidly with increasing path length. Based on the geoclimatic factor obtained, the work proposes a general model power1 multipath fading adapted to a link distance at fixed frequency 12.5 GHz and multipath fading model as a function of frequencies at a fixed link distance. | |
| dc.identifier.issn | 2320-9186 | |
| dc.identifier.uri | https://kwasuspace.kwasu.edu.ng/handle/123456789/2703 | |
| dc.language.iso | en | |
| dc.publisher | Global Scientific Journals (GSJ) | |
| dc.title | EMPIRICAL CHARACTERIZATION AND MODELING OF FADE DEPTH DUE TO MULTIPATH PROPAGATION AT MICROWAVE BAND |