On the Two-Ray Model Analysis for Overwater Links with Tidal Variations

Gutiérrez Gaitán, Miguel; Pinto, Luis; Santos, Pedro Miguel; Almeida, Luís

http://hdl.handle.net/10400.22/15296

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Authors

Gutiérrez Gaitán, Miguel

Pinto, Luis

Santos, Pedro Miguel

Almeida, Luís

Abstract(s)

This work explores the impact of antenna heights and polarization on overwater links during the cycle of tidal variations. We focus our attention on links of short-to-medium-range distances with antenna heights near-to-the-water-surface. The typical use-case for such a scenario is an overwater, water quality monitoring wireless sensor network. The radio propagation is simulated using a featured two-ray model that considers the relative permittivity of the water surface and the antenna polarization. The results show that the performance of overwater links may be better with lower antennas than higher antennas as well as with one polarization or the other, intuitively, during part of the tidal cycle.