PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves
Version 1
: Received: 29 February 2024 / Approved: 1 March 2024 / Online: 1 March 2024 (07:55:50 CET)
How to cite:
Matricciani, E. A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves. Preprints2024, 2024030017. https://doi.org/10.20944/preprints202403.0017.v1
Matricciani, E. A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves. Preprints 2024, 2024030017. https://doi.org/10.20944/preprints202403.0017.v1
Matricciani, E. A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves. Preprints2024, 2024030017. https://doi.org/10.20944/preprints202403.0017.v1
APA Style
Matricciani, E. (2024). A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves. Preprints. https://doi.org/10.20944/preprints202403.0017.v1
Chicago/Turabian Style
Matricciani, E. 2024 "A Small Power Margin and Bandwidth Expansion Allow Data Transmission During Rainfall Despite Large Attenuation: Application to GeoSurf Satellite Constellations at mm–Waves" Preprints. https://doi.org/10.20944/preprints202403.0017.v1
Abstract
The traditional approach of considering the probability distribution of rain attenuation leads to overdesign the power margin of data channels. We have first recalled a method, proposed in 2016, which with a small power margin, bandwidth expansion and variable symbol rate avoids overdesign and can transfer the same data volume as if the link were in clear–sky conditions. It is charaterized only by the link mean efficiency 0≤η≤1, suitably defined. It is usefull only if: (a) data must be downloaded also when it is raining; (b) real–time communication is not strictly required. We have applied it to the links of GeoSurf satellite constellations by simulating rain attenuation time series at 80 GHz (mm–wave) with the Synthetic Storm Technique, from rain-rate time series recorded on–site, at sites located in different climatic regions. The power margin to be implemented ranges from 2.0 dB to 7.4 dB – well within the current technology – regardless the instantaneous rain attenuation. The clear–sky bandwidth is expanded 1.75 to 2.80 times, not large per se, but it may challenge current technology if the clear–sky bandwidth is already large.
Keywords
bandwidth expansion; GeoSurf; link efficiency; power margin; rain attenuation; satellite constellation Synthetic Storm Technique
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
