4 papers · 1 filter
Rainbow Beamforming for Wideband LEO Satellite Communications: Principles, Applications, and Technical Challenges
Juha Park, Hyungseok Ko, Haejung Kim +4
Low Earth Orbit (LEO) satellite communications (SATCOM) has emerged as a key enabler of global connectivity for 6G networks. To overcome the significant path loss of space-to-groun…
Beyond Beam Sweeping: One-Shot Satellite Acquisition with Doppler-Aware Rainbow Beamforming
Juha Park, Ian P. Roberts, Wonjae Shin
High-gain beamforming (BF) is essential for low Earth orbit (LEO) satellite communications to overcome severe path loss, but this requires acquiring precise satellite positions. Co…
Adaptive Cell Range Expansion in Multi-Band UAV Communication Networks
Xinsong Feng, Ian P. Roberts
This paper leverages stochastic geometry to model, analyze, and optimize multi-band unmanned aerial vehicle (UAV) communication networks operating across low-frequency and millimet…
Splitting Messages in the Dark- Rate-Splitting Multiple Access for FDD Massive MIMO Without CSI Feedback
Namhyun Kim, Ian P. Roberts, Jeonghun Park
A critical hindrance in realizing frequency division duplex (FDD) massive multi-input multi-output (MIMO) systems is the overhead associated with the downlink (DL) channel state in…