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Chaeyeon Kim, Joohyun Son, Daesik Hong, Ian P. Roberts, "Beam Tracking for Full-Duplex User Terminals in Low Earth Orbit Satellite Communication Systems", IEEE ICC 2025

[IEEE ICC]
조회 19504
Status : Presented 
Date : 2025-01 
Title : Beam Tracking for Full-Duplex User Terminals in Low Earth Orbit Satellite Communication Systems 
Authors : Chaeyeon Kim, Joohyun Son, Daesik Hong, Ian P. Roberts 
Conference : IEEE ICC 2025 
Abstract : This paper introduces a novel beam tracking scheme for full-duplex ground user terminals aiming to transmit uplink and receive downlink from two low Earth orbit (LEO) satellites at the same time and same frequency. Our proposed technique leverages observed phenomena from a recent measurement campaign to strategically select transmit and receive beams which couple low self-interference across the satellites’ trajectories, thereby enabling in-band full-duplex operation. Our scheme takes a measurement-driven approach, meaning it does not rely on explicit knowledge of the self-interference channel and can inherently account for hardware impairments or other nonidealities. We show that our proposed scheme reliably selects beams which spatially cancel self-interference to below the noise floor, circumventing the need for digital/analog cancellation. Simulation results using satellite and orbital parameters published in 3GPP and FCC filings show that this substantial reduction in selfinterference does not prohibitively compromise beamforming gain, allowing the user terminal to attain near-maximal SINRs, thus unlocking full-duplex operation. 

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List of Articles
No.
Status Datesort
» [IEEE ICC] Chaeyeon Kim, Joohyun Son, Daesik Hong, Ian P. Roberts, "Beam Tracking for Full-Duplex User Terminals in Low Earth Orbit Satellite Communication Systems", IEEE ICC 2025 Presented  2025-01 
1 [IEEE ICC] Seokjung Kim, Hyunsoo Kim, and Daesik Hong, "Capacity Comparison of Opportunistic Relaying System with Outdated Channel Information," IEEE ICC 2015 file Presented  2015-06 
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