Interference Analysis of LEO Mega-Constellation Uplink Transmissions Affecting GSO Satellite Networks in the Ku Band 


Vol. 51,  No. 3, pp. 630-640, Mar.  2026
10.7840/kics.2026.51.3.630


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  Abstract

This study investigates uplink interference from low Earth orbit (LEO) mega-constellation earth stations to geostationary-satellite orbit (GSO) networks in the Ku-band, focusing on the 14-14.5 GHz frequency range. The analysis reveals that interference magnitude depends critically on LEO earth station deployment density and GSO avoidance angle. Dense deployments with minimal avoidance angles cause severe GSO reception degradation, whereas a 20-degree avoidance angle ensures compliance with the protection criterion across all deployment scenarios. This work establishes technical foundations for regulatory frameworks and design methodologies to enable effective spectrum sharing between LEO and GSO satellite systems.

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[IEEE Style]

J. Park, B. Koo, S. Park, D. Chang, "Interference Analysis of LEO Mega-Constellation Uplink Transmissions Affecting GSO Satellite Networks in the Ku Band," The Journal of Korean Institute of Communications and Information Sciences, vol. 51, no. 3, pp. 630-640, 2026. DOI: 10.7840/kics.2026.51.3.630.

[ACM Style]

Jongmin Park, Bonsan Koo, Sekyoung Park, and Dong-pil Chang. 2026. Interference Analysis of LEO Mega-Constellation Uplink Transmissions Affecting GSO Satellite Networks in the Ku Band. The Journal of Korean Institute of Communications and Information Sciences, 51, 3, (2026), 630-640. DOI: 10.7840/kics.2026.51.3.630.

[KICS Style]

Jongmin Park, Bonsan Koo, Sekyoung Park, Dong-pil Chang, "Interference Analysis of LEO Mega-Constellation Uplink Transmissions Affecting GSO Satellite Networks in the Ku Band," The Journal of Korean Institute of Communications and Information Sciences, vol. 51, no. 3, pp. 630-640, 3. 2026. (https://doi.org/10.7840/kics.2026.51.3.630)
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