5 papers · 1 filter
A Lifecycle and Application-Stack Survey of Large Language Model Vulnerabilities: Attacks, Risks, Defenses, and Open Problems
Seyed Bagher Hashemi Natanzi, Bo Tang
Large language models are no longer only text generators. They are increasingly embedded in retrieval pipelines, enterprise assistants, coding environments, robotic systems, securi…
Advanced AI Service Provisioning in O-RAN through LLM Engine Integration
Seyed Bagher Hashemi Natanzi, Pranshav Gajjar, Bo Tang +1
The Open Radio Access Network (O-RAN) architecture allows AI to be embedded directly into the RAN through modular xApps and rApps, yet creating these applications collecting data,…
SliceFed: Federated Constrained Multi-Agent DRL for Dynamic Spectrum Slicing in 6G
Hossein Mohammadi, Seyed Bagher Hashemi Natanzi, Ramak Nassiri +3
Dynamic spectrum slicing is a critical enabler for 6G Radio Access Networks (RANs), allowing the coexistence of heterogeneous services. However, optimizing resource allocation in d…
AI-Driven Fuzzing for Vulnerability Assessment of 5G Traffic Steering Algorithms
Seyed Bagher Hashemi Natanzi, Hossein Mohammadi, Bo Tang +1
Traffic Steering (TS) dynamically allocates user traffic across cells to enhance Quality of Experience (QoE), load balance, and spectrum efficiency in 5G networks. However, TS algo…
FairShare: Auditable Geographic Fairness for Multi-Operator LEO Spectrum Sharing
Seyed Bagher Hashemi Natanzi, Hossein Mohammadi, Vuk Marojevic +1
Dynamic spectrum sharing (DSS) among multi-operator low Earth orbit (LEO) mega-constellations is essential for coexistence, yet prevailing policies focus almost exclusively on inte…