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Author

Guo-Cheng Lv

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2026

Secure Transmission Design for Active RIS-Aided ISAC System With Discrete Phase Shifts and Colluding Eavesdroppers

This letter investigates secure transmission in active reconfigurable intelligent surface (RIS)-assisted integrated sensing and communication (ISAC) systems. We consider a scenario with multiple colluding eavesdroppers (Eves), where a dual-functional ISAC base station (BS) simultaneously serves multiple legitimate user...

Jia-Le Shi, Yu-Hang Li, Li-Meng Dong et al. · 0 citations
Open access 2026

BiBHNet: A Bilateral Beam Hopping Neural Network for Joint Beam Pattern and Resource Allocation in GEO Satellite Communications

Geostationary Earth orbit (GEO) high-throughput satellite (HTS) systems face the challenges of non-uniform traffic distributions and inter-beam interference under limited resources. Conventional beam hopping (BH) methods typically decouple multidimensional allocations or rely on iterative optimization because the mixed...

Chen-Yu Wu, Yu-Hang Li, Guo-Cheng Lv et al. · 0 citations
Open access Aug 2026

Secrecy Performance of O-RAN-Enabled RIS-Assisted FSO/RF Satellite Downlinks

This paper presents a secrecy analysis of a novel reconfigurable intelligent surface (RIS)-assisted mixed free-space optical and radio frequency (RF) satellite downlink transmission system within an O-RAN-enabled non-terrestrial network (NTN) framework and demonstrates that link blockage probability and channel estimat...

Yu-Hang Li, Xi-Fan Chen, Jia-Le Shi et al. · 0 citations

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