Quantifying Wet Antenna Attenuation in 38-GHz Commercial Microwave Links of Cellular Backhaul

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00330172" target="_blank" >RIV/68407700:21110/19:00330172 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21230/19:00330172

Result on the web

<a href="https://doi.org/10.1109/LGRS.2018.2876696" target="_blank" >https://doi.org/10.1109/LGRS.2018.2876696</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LGRS.2018.2876696" target="_blank" >10.1109/LGRS.2018.2876696</a>

Result language

čeština

Original language name

Quantifying Wet Antenna Attenuation in 38-GHz Commercial Microwave Links of Cellular Backhaul

Original language description

The quantification of wet antenna attenuation (WAA) represents one of the major uncertainties in rainfall retrieval from commercial microwave links (CMLs). We propose identifying WAA distribution and upper limits based on rainfall climatology without the need for nearby rainfall observations. The quantified contributions of antenna wetting due to total loss are derived from 2 years of data collected from eight short (48-497 m) CMLs operating at frequencies of 37.3-39.2 GHz within the cellular backhaul. More specifically, the complementary cumulative distribution functions of measured attenuation are compared with theoretical ones calculated from rainfall data from local rain gauges. The results show that WAA reaches 1.5-2.0 dB and dominates over path attenuation during light rainfalls (R < 2 mm/h). WAA can, however, reach 2.8-5.3 dB during heavy rainfalls and maximal WAA observed during extreme rainfalls (R ~ 70-130 mm/h) is between 6-9 dB. The constant value of WAA used in some previous studies may, therefore, lead to a significant overestimation of peak rainfalls retrieved from CMLs

Czech name

Quantifying Wet Antenna Attenuation in 38-GHz Commercial Microwave Links of Cellular Backhaul

Czech description

The quantification of wet antenna attenuation (WAA) represents one of the major uncertainties in rainfall retrieval from commercial microwave links (CMLs). We propose identifying WAA distribution and upper limits based on rainfall climatology without the need for nearby rainfall observations. The quantified contributions of antenna wetting due to total loss are derived from 2 years of data collected from eight short (48-497 m) CMLs operating at frequencies of 37.3-39.2 GHz within the cellular backhaul. More specifically, the complementary cumulative distribution functions of measured attenuation are compared with theoretical ones calculated from rainfall data from local rain gauges. The results show that WAA reaches 1.5-2.0 dB and dominates over path attenuation during light rainfalls (R < 2 mm/h). WAA can, however, reach 2.8-5.3 dB during heavy rainfalls and maximal WAA observed during extreme rainfalls (R ~ 70-130 mm/h) is between 6-9 dB. The constant value of WAA used in some previous studies may, therefore, lead to a significant overestimation of peak rainfalls retrieved from CMLs

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10501 - Hydrology

Project

<a href="/en/project/GA17-16389S" target="_blank" >GA17-16389S: Hydrological estimates from radiowave propagation in terrestial microwave network</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IEEE Geoscience and Remote Sensing Letters

ISSN

1545-598X

e-ISSN

1558-0571

Volume of the periodical

16

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

514-518

UT code for WoS article

000462443300004

EID of the result in the Scopus database

2-s2.0-85056313101