Author

Xue Zhang

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Preprint Aug 2026

Semi-Blind Channel Estimation for Dynamic NTN Systems via Spiked Random Matrix Theory

The proposed approach introduces an optimally regularized least-squares formulation that balances training-based information and blind subspace structure and derive a closed-form characterization of the resulting channel mean-squared error and obtain an analytically tractable design of the optimal regularization parame...

Xue Zhang, A. Kammoun, M. Alouini · 0 citations

Preprint Jul 2026

Joint Beamforming, Energy Management, and Trajectory Optimization for Figure-Eight Loitering in Solar-Powered HAPS-Enabled ISAC Systems

Solar-powered high-altitude platform stations (HAPSs) provide a promising platform for integrated sensing and communication (ISAC) owing to their wide-area coverage and long-endurance operation. This paper proposes a solar-powered HAPS-enabled ISAC framework for sustainable day-night operation, where a figure-eight loi...

Xue Zhang, Bang Huang, M. Alouini · 0 citations