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Beam Size Design for LEO Satellite Networks with Doppler Shift Characteristics
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Publication Year
2022-01-01
Journal
International Conference on ICT Convergence
Publisher
IEEE Computer Society
Citation
International Conference on ICT Convergence, Vol.2022-October, pp.924-926
Keyword
bBeam sizeDoppler shiftLow Earth Orbit (LEO) satellite networksOFDM numerologypre-compensation
Mesh Keyword
Bbeam sizeBeam sizeHigh mobilityLow earth orbit satellite networkLow earth orbit satellitesNetwork designOFDM numerologyPre-compensationSatellite networkTerrestrial networks
All Science Classification Codes (ASJC)
Information SystemsComputer Networks and Communications
Abstract
Low Earth Orbit (LEO) satellite networks need to consider the high mobility of LEO satellites. The high Doppler shift due to the mobility of LEO satellites occurs essentially and its scale is not considered in the terrestrial network. Therefore, it is difficult to overcome the Doppler shift in LEO satellite networks with the existing terrestrial network design. In this paper, we propose a LEO sate0llite beam design considering Doppler shift. After calculating Doppler shift and compensation, we analyze the characteristics of Doppler shift in LEO satellite networks. Given OFDM numerology technology of 5G NR (New Radio) and carrier frequency, the LEO satellite beam size is determined differently.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36818
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143256373&origin=inward
DOI
https://doi.org/10.1109/ictc55196.2022.9952738
Journal URL
http://ieeexplore.ieee.org/xpl/conferences.jsp
Type
Conference
Funding
VI. ACKNOWLEDGMENT This research was supported by the MSIT(Ministry of Science and ICT), Korea, under the ITRC(Information Technology Research Center) support program(IITP-2022-2018-0-01424) supervised by the IITP(Institute for Information communications Technology Promotion) and by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2021R1A4A1030775).
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Kim, Jae-Hyun Image
Kim, Jae-Hyun김재현
Department of Electrical and Computer Engineering
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