Parametrization of drop size distribution with rain rate for microwave and millimeter wave applications in Central Africa

Ntanguen, Patrick Herve; Nzeukou, Armand; Onguéné, Raphaël; Sandjon, Alain Tchakountio; Sonfack, Rousvel

doi:10.1007/s12648-023-02664-5

Cited by 1 publication

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More details on the equipment reliability can be consulted from the manufacture site https://www.otthydromet.com/en/(accessed on 28 March 2022). Rain gauges show good measurement reliability, as demonstrated by Ntanguen et al [22], in their comparative study with the Parsivel disdrometer.…”

Section: Tongo-bassa: Environmental Observatorymentioning

confidence: 71%

“…Located in one of the 13 catchment areas of the coastal city of Douala in Cameroon, the "Tongo-Bassa" environmental observatory served as a detection system for meteorological phenomena influencing the propagation of millimetre waves, mainly rainfall. The Tongo-Bassa watershed observatory consists of 18 measuring stations: 08 rain gauges, 07 hydrometers, 02 tide gauges, and 01 complete weather station consisting of an optical laser disdrometer known as the "Parsivel" (Figure 2(a)) [19][20][21][22]. Rainfall data from 04 tilting bucket rain gauges in particular, reference 15189 from the German manufacturer OTT Hydromet (Figure 2(b)), arranged around an 80 GHz test link were used to determine dry and rainy periods: "Météo-IUT", "Campus-2-Université", "Socatur", and "Hôpital-Des-Soeurs".…”

Section: Tongo-bassa: Environmental Observatorymentioning

confidence: 99%

See 1 more Smart Citation

Millimeter Wave Attenuation in the Coastal Area of the Gulf of Guinea Subject to Heavy Rainfalls

Tanga Louk,

Onguene,

Dzonde Naoussi

et al. 2023

PIER M

View full text Add to dashboard Cite

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.

show abstract

Section: Tongo-bassa: Environmental Observatorymentioning

confidence: 71%

Section: Tongo-bassa: Environmental Observatorymentioning

confidence: 99%