Optimal antenna-height design for improved capacity on over-water radio links affected by tides

Miguel Gutierrez Gaitan, Pedro M. Santos, Luis R. Pinto, Luis Almeida

Producción científica: Contribución a los tipos de informe/libroContribución a la conferenciarevisión exhaustiva

3 Citas (Scopus)


Modern observation systems can be composed by heterogeneous entities (e.g., buoys, USVs, UAVs, on-shore sensors, etc.) that rely on dependable communications for coordination and data collection, often provided by over-water radio-frequency (RF) links. In tide-affected water bodies, RF links at a fixed height from the shore can experience the so-called tidal fading, a cyclic time-varying tide-induced interference. To mitigate it, the classical space-diversity reception technique (i.e., the use of two or more receiver antennas positioned at different heights) is often applied, commonly combined with the consideration of having one of the antennas at the largest possible height. Yet, this approach does not always ensure the best performance. In this work, we focus on static over-water links of short-to-medium-range distances that use antennas installed at a few meters above surface. We leverage the geometrical basis of the two-ray propagation model to investigate the optimal single-antenna height design that minimizes overall average path losses over a given tidal range. We then extend this analysis to incorporate a second receiver antenna and identify its optimal antenna height. Analytical results show that our method considerably outperforms the more classical approach, thus enabling superior (average) link capacities.

Idioma originalInglés
Título de la publicación alojada2020 Global Oceans 2020
Subtítulo de la publicación alojadaSingapore - U.S. Gulf Coast
EditorialInstitute of Electrical and Electronics Engineers Inc.
ISBN (versión digital)9781728154466
EstadoPublicada - 5 oct. 2020
Evento2020 Global Oceans: Singapore - U.S. Gulf Coast, OCEANS 2020 - Biloxi, Estados Unidos
Duración: 5 oct. 202030 oct. 2020

Serie de la publicación

Nombre2020 Global Oceans 2020: Singapore - U.S. Gulf Coast


Conferencia2020 Global Oceans: Singapore - U.S. Gulf Coast, OCEANS 2020
País/TerritorioEstados Unidos

Áreas temáticas de ASJC Scopus

  • Oceanografía
  • Ingeniería automovilística
  • Instrumental
  • Procesamiento de senales


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