8 papers · 1 filter
Environment-to-Link ISAC with Space-Weather Sensing for Ka-Band LEO Downlinks
Houtianfu Wang, Haofan Dong, Hanlin Cai +1
Ka-band low-Earth-orbit (LEO) downlinks can suffer second-scale reliability collapses during flare-driven ionospheric disturbances, where fixed fade margins and reactive adaptive c…
Performance Limits of Hardware-Constrained THz Inter-Satellite MIMO-ISAC Systems
Haofan Dong, Ozgur B. Akan
Terahertz inter-satellite links (THz-ISL) offer unprecedented bandwidth for future space networks but face fundamental constraints from onboard power and thermal budgets. This pape…
Graph Representation-based Model Poisoning on the Heterogeneous Internet of Agents
Hanlin Cai, Houtianfu Wang, Haofan Dong +3
Internet of Agents (IoA) envisions a unified, agent-centric paradigm where heterogeneous large language model (LLM) agents can interconnect and collaborate at scale. Within this pa…
Fundamental Limits of Cooperative Integrated Sensing and Communications over Low-Earth Orbit THz Satellite Channels
Haofan Dong, Houtianfu Wang, Hanlin Cai +1
Terahertz inter-satellite links enable unprecedented sensing precision for Low Earth Orbit (LEO) constellations, yet face fundamental bounds from hardware impairments, pointing err…
Fundamental Limits of THz Inter-Satellite ISAC Under Hardware Impairments
Haofan Dong, Ozgur B. Akan
This paper establishes a theoretical framework for analyzing the fundamental performance limits of terahertz (THz) Low Earth Orbit (LEO) inter-satellite link (ISL) Integrated Sensi…
Graph Representation-based Model Poisoning on Federated Large Language Models
Hanlin Cai, Haofan Dong, Houtianfu Wang +2
Federated large language models (FedLLMs) enable powerful generative capabilities within wireless networks while preserving data privacy. Nonetheless, FedLLMs remain vulnerable to…
MASC: Integrated Sensing and Communications for the Martian Internet of Space
Haofan Dong, Ozgur B. Akan
Mars exploration missions increasingly demand reliable communication systems, yet harsh environmental conditions -- particularly frequent dust storms, extreme Doppler effects, and…
Semantic Communication for the Internet of Space: New Architecture, Challenges, and Future Vision
Hanlin Cai, Houtianfu Wang, Haofan Dong +1
The expansion of sixth-generation (6G) wireless networks into space introduces technical challenges that conventional bit-oriented communication approaches cannot efficiently addre…