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Conference Aug 2026

Joint Beam Scheduling and Precoding for LEO Satellites Via Physics-Aware GNN

Joint beam scheduling and precoding in beam-hopping (BH) low earth orbit (LEO) satellite systems is formulated as a mixed-integer nonlinear programming (MINLP) problem. Conventional alternating optimization (AO) algorithms suffer from high computational complexity due to iterative solving, failing to meet the real-time...

Zhao-Qi Liu, Wei Zhang, Wei Yu et al. · 0 citations
Conference Aug 2026

Simultaneous Calibration of Two Spaceborne Phased Arrays for Satellite Communications

This paper aims to calibrate the phase deviations of two spaceborne phased arrays (SPAs) simultaneously for in-orbit satellite communication systems. Given multiple transmissions of the pilots, the phase deviations and the channel parameters are jointly estimated with a block coordinate descent algorithm. Moreover, the...

Wei Zhang, Ding Chen, Yi-Fei Zhang et al. · 0 citations

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