4 papers
Satellite Assignment Policy Learning for Coexistence in LEO Networks
Jeong Min Kong, Eunsun Kim, Ian P. Roberts
Unlike in terrestrial cellular networks, certain frequency bands for low-earth orbit (LEO) satellite systems have thus far been allocated on a non-exclusive basis. In this context,…
Satellite Selection for In-Band Coexistence of Dense LEO Networks
Eunsun Kim, Ian P. Roberts, Taekyun Lee +1
We study spectrum sharing between two dense low-earth orbit (LEO) satellite constellations, an incumbent primary system and a secondary system that must respect interference protec…
Can TDD Be Employed in LEO SatCom Systems? Challenges and Potential Approaches
Hyunwoo Lee, Ian P. Roberts, Jehyun Heo +4
Frequency-division duplexing (FDD) remains the de facto standard in modern low Earth orbit (LEO) satellite communication (SatCom) systems, such as SpaceX's Starlink, OneWeb, and Am…
Beam Tracking for Full-Duplex User Terminals in Low Earth Orbit Satellite Communication Systems
Chaeyeon Kim, Joohyun Son, Daesik Hong +1
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…