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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2023-09-25
Millimeter Wave Attenuation in the Coastal Area of the Gulf of Guinea Subject to Heavy Rainfalls
By
Benjamin Tanga Louk,

    Mr. Benjamin Tanga Louk

    EDOSFA (Ecole Doctorale des Sciences Fondamentales et Appliquées)

    University Institute of Technology, University of Douala

    Cameroon

    Homepage

Raphael Onguene,

    Dr. Raphael Onguene

    Institut Universitaire de Technologie de l'Université de Douala

    Cameroun

    Homepage

Serge Raoul Dzonde Naoussi,

    Dr. Serge Raoul Dzonde Naoussi

    University Institute of Technology, University of Douala

    Cameroon

    Homepage

Sakaros Bogning,

    Dr. Sakaros Bogning

    University Institute of Technology, University of Douala

    Cameroon

    Homepage

Jacques Etame,

    Dr. Jacques Etame

    University Institute of Technology, University of Douala

    Cameroon

    Homepage

Modeste Kacou,

    Dr. Modeste Kacou

    Laboratoire des Sciences de la Matière, de l'Environnement et de l'Energie Solaire (LASMES)

    University Felix Houphouet-Boigny

    Ivory Coast

    Homepage

Patrick Herve Ntanguen

    Dr. Patrick Herve Ntanguen

    Department of Physics

    University of Dschang

    Cameroon

    Homepage

Progress In Electromagnetics Research M, Vol. 119, 89-103, 2023
doi:10.2528/PIERM23071204 | Google Scholar

Abstract
Wireless communication systems have developed significantly over the last few decades. Due to the saturation of lower frequencies of microwave spectrum (3-30 GHz) and the increasing need for high speed, emerging systems for consumer or professional use are progressively shifting to upper microwave and millimeter waves. Our study proposes a methodology for evaluating and classifying losses on a vertically polarized millimeter wave link at 80 GHz. To achieve this, we simulated the link budget of a Nokia 80UBT millimeter wave link operating in its real propagation space (with overground) with Pathloss 5.1 Design tool. Then we built a 3.58 km full-scale link in the Tongo-Bassa watershed of the coastal city of Douala in Cameroon. Analysing data collected over the period from December 06, 2020 to December 16, 2021 under Power BI allowed us to characterize the response of the millimeter signal in free space, during dry and rainy seasons. We then challenge ITU-R P.837-7 and ITU-R.P.838-3 Recommendations on statistical models of rainfall for propagation modeling, especially for millimeter signals propagated in an equatorial climate with heavy rainfalls. The study estimated a rainfall rate for 0.01% of the time at 110.1 mm/h, with a millimeter link cut-off for a rainfall rate greater than 64.8 mm/h, with a specific attenuation due to rain of 6.5 dB/km.
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Citation
Benjamin Tanga Louk, Raphael Onguene, Serge Raoul Dzonde Naoussi, Sakaros Bogning, Jacques Etame, Modeste Kacou, and Patrick Herve Ntanguen, "Millimeter Wave Attenuation in the Coastal Area of the Gulf of Guinea Subject to Heavy Rainfalls," Progress In Electromagnetics Research M, Vol. 119, 89-103, 2023.
doi:10.2528/PIERM23071204
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