Publications

Preprints or Under Review

• Digital Network Twins for Next-generation Wireless: Creation, Optimization, and Challenges [pdf]
  Y. Liu, Z. Peng, Z. Zhang, H. Yu, M. Chen
  Submitted to IEEE Communication Magazine (Major Revision), 2024.

• On Transferring, Merging, and Splitting Task-Oriented Network Digital Twins
  Z. Zhang, M. Chen, Y. Liu
  Submitted to IEEE INFOCOM, 2025.

• Securing Safety-Critical Systems with Robust Federated Reinforcement Learning
  Z. Zhang, D. Chen, M. Fang, Z. Liu, P. Khanduri, X. Yang, Y. Liu
  Submitted to Usenix Security, 2025.

• Poisoning Attacks and Defenses to Federated Unlearning
  W. Wang, Q. Ma, Z. Zhang, Y. Liu, Z. Liu, M. Fang
  Submitted to ACM the Web Conference, 2025.

• Synergizing AI and Digital Twins for Next-Generation Network Optimization, Forecasting, and Security
  Z. Zhang, M. Fang, D. Chen, X. Yang, Y. Liu
  Submitted to IEEE Wireless Communications, 2025.

2024

• On the Hardness of Decentralized Multi-Agent Policy Evaluation under Byzantine Attacks
  Hairi, M. Fang, Z. Zhang, A. Velasquez, J. Liu
  Published in IEEE/IFIP International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2024. (Invited Paper)

• Securing Distributed Network Digital Twin Systems Against Model Poisoning Attacks [pdf]
  Z. Zhang, M. Fang, M. Chen, G. Li, X. Lin, and Y. Liu
  Published in IEEE Internet of Things Journal (IoT-J), 2024.

• Poisoning Attacks on Federated Learning-based Wireless Traffic Prediction [pdf]
  Z. Zhang, M. Fang, J. Huang, Y. Liu
  Published in IFIP/IEEE Networking Conference, 2024. (Best Paper Award Runner-up)

• Mapping Wireless Networks into Digital Reality through Joint Vertical and Horizontal Learning [pdf]
  Z. Zhang, M. Chen, Z. Yang, Y. Liu
  Published in IFIP/IEEE Networking Conference, 2024.

• Digital Twin-Assisted Data-Driven Optimization for Reliable Edge Caching in Wireless Networks [pdf]
  Z. Zhang, Y. Liu, Z. Peng, M. Chen, D. Xu, S. Cui
  Published in IEEE Journal on Selected Areas in Communications (JSAC-SI-OPT), 2024.

• Toward Byzantine-Robust Decentralized Federated Learning [pdf]
  M. Fang, Z. Zhang, Hairi, P. Khanduri, J. Liu, S. Lu, Y. Liu, Z. Gong
  Published in The 31th ACM Conference on Computer and Communications Security (CCS), 2024.

• Sample and Communication Efficient Fully Decentralized MARL Policy Evaluation via a New Approach: Local TD update [pdf]
  Hairi, Z. Zhang, J. Liu.
  Published in International Conference on Autonomous Agents and Multiagent Systems (AAMAS), 2024.

2023

• Communication Efficiency and Security for Multi-Agent Reinforcement Learning [pdf]
  Z. Zhang.
  Published in Ohio Link, 2023. Master Thesis.