Rainfall retrieval with new generation of microwave link backhaul operating at E-band
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00341032" target="_blank" >RIV/68407700:21110/19:00341032 - isvavai.cz</a>
Result on the web
<a href="https://indico.scc.kit.edu/event/570/contributions/5712/contribution.pdf" target="_blank" >https://indico.scc.kit.edu/event/570/contributions/5712/contribution.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Rainfall retrieval with new generation of microwave link backhaul operating at E-band
Original language description
New generation of E-band commercial microwave links (CMLs) operating at frequency band 70 - 86 GHz is gradually completing cellular backhaul networks and especially in cities often replacing older devices. CML rainfall retrieval methods developed during last decade have been designed and tested for frequency bands 20-40 GHz, where path attenuation caused by raindrops is almost linearly related to rainfall intensity and does not strongly depend on drop size distribution. This contribution assesses potential of E-band CMLs for rainfall retrieval by combining theoretical calculations and observations retrieved from E-band CMLs operating within cellular backhaul of T-Mobile, CZ. The initial results show that i) number of E-band CMLs has increased dramatically during last three years, ii) CML rainfall retrieval at E-band is sensitive to drop size distribution and spatial variability of rainfall, and iii) E-band CMLs are about three times more sensitive to rainfall than older 20-40 GHz devices, which enables to reliably measure rainfalls even with short (sub-kilometre long) CMLs. Longer CMLs, on the other hand, experience outages during heavier rainfalls, nevertheless, they can measure reliably light rainfalls, which has not been mostly feasible with old generation of devices.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10501 - Hydrology
Result continuities
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)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů