Author

Nirwan Ansari

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2026

Multi-Critic Reinforcement Learning for Frame- and Tick-Rate Aware Satellite–Ground Integrated Heterogeneous Edge Networks

Satellite–ground integrated networks (SAGIN) enable wide-area support for latency-sensitive interactive applications such as UAV teleoperation and remote robotic control. Unlike conventional data services that focus on average latency or throughput, these applications operate in closed-loop feedback cycles in which per...

Wei-Qi Liu, Mohammad Arif Hossain, Nirwan Ansari · IEEE Transactions on Network... · 0 citations

Review Aug 2026

On Understanding, Identifying, and Mitigating Vulnerabilities in Agentic Large Language Models

A four-layer taxonomy mapping 13 vulnerability types across perception, brain, action, and interaction layers is contributed, and seven open problems centered on containment are identified.

Md Jafrin Hossain, Mohammad Arif Hossain, Nirwan Ansari · 0 citations

Preprint Aug 2026

Cognitive Graph Intelligence for Adaptive and Robust DDoS Attack Detection in Next Generation Networks

By integrating temporal graph construction, adversarial augmentation, and GCN classification, GraphGAN effectively models coordinated attack behaviors and mitigates class imbalance, providing a robust and topology-aware solution for intrusion detection in data-constrained environments.

Mohammad Arif Hossain, Yeahia Sarker, Md Jafrin Hossain et al. · 0 citations