4 papers · 1 filter
Random Access for LEO Satellite Communication Systems via Deep Learning
Hyunwoo Lee, Ian P. Roberts, Jinkyo Jeong +1
Integrating contention-based random access procedures into low Earth orbit (LEO) satellite communication (SatCom) systems poses new challenges, including long propagation delays, l…
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…