About

I am a Ph.D. student at the College of Systems Engineering, National University of Defense Technology. My research interests include traffic engineering, network topology obfuscation, network traffic classification, and website fingerprinting.

Education

Research Interests

• Traffic engineering
• Network topology obfuscation
• Website fingerprinting

News

• Sep 2026 Our paper "Beyond Single-Tab: State-Aware Traffic Shaping for Multi-tab Website Fingerprinting Defense" has been accepted to NDSS 2027.

Publications

English Publications

1. [CSUR'26] Changhao Qiu, Bangbang Ren, Lailong Luo, Deke Guo. Network Topology Obfuscation: Challenges, Solutions, and Comparisons. ACM Computing Surveys, 2026. DOI

2. [IWQoS'26] Shangsen Li, Changhao Qiu, Lailong Luo, Bangbang Ren, Rui Chen, Deke Guo. Velo-NC: Verified Worst-Case End-to-End Queueing-Delay Bounds Under Network Dynamics. IEEE/ACM International Symposium on Quality of Service (IWQoS), 1-10, 2026. DOI

3. [ToN'26] Changhao Qiu, Bangbang Ren, Lailong Luo, Deke Guo. TopoFaker: Topology Obfuscation Against Network Tomography for General Topologies. IEEE Transactions on Networking (TON), 34:5460-5475, 2026. DOI

4. [TST'26] Xinhao Deng, Jingyou Chen, Linxiao Yu, Yixiang Zhang, Zhongyi Gu, Changhao Qiu, Xiyuan Zhao, Ke Xu, Qi Li. Beyond a Single Perspective: Towards a Realistic Evaluation of Website Fingerprinting Attacks. Tsinghua Science and Technology, 31(3):1381-1392, 2026. DOI

5. [ComNet'26] Rui Chen, Lailong Luo, Bangbang Ren, Deke Guo, Changhao Qiu, Shangsen Li, Xiaodong Wang. DenTC: An expandable framework for dynamic malicious traffic classification. Computer Networks, 278:112078, 2026. DOI

6. [ToN'25] Changhao Qiu, Bangbang Ren, Guoming Tang, Lailong Luo, Deke Guo. ChameleonNet: Topology Obfuscation Against Tomography With Critical Information Hiding. IEEE Transactions on Networking (TON), 33(5):2585-2600, 2025. DOI

7. [ComNet'25] Shangsen Li, Lailong Luo, Changhao Qiu, Bangbang Ren, Yun Zhou, Deke Guo, Richard T. B. Ma. GraphVeri: A NAR-based control plane verification framework for routing protocols. Computer Networks, 271:111635, 2025. DOI

8. [ComNet'25] Rui Chen, Lailong Luo, Deke Guo, Xiaodong Wang, Shangsen Li, Changhao Qiu. TrafficCLIP: A lightweight cross-modal framework for network traffic classification. Computer Networks, 272:111662, 2025. DOI

9. [APNet'25] Rui Chen, Lailong Luo, Deke Guo, Xiaodong Wang, Shangsen Li, Changhao Qiu. Lightweight Cross-Modal Network Traffic Classification Based on CLIP. Asia-Pacific Workshop on Networking (APNet), 254-255, 2025. DOI

10. [FMANO'25] Shangsen Li, Lailong Luo, Changhao Qiu, Bangbang Ren, Deke Guo. A Forwarding-Path-Aware Sampling Strategy for Config2Spec. FMANO@SIGCOMM, 1-6, 2025. DOI

11. [NPC'25] Hengxian Wang, Changhao Qiu, Bangbang Ren, Rui Chen, Lailong Luo, Deke Guo. Pallas: Optimizing LLM-Based Anomaly Traffic Classification with Compressed Prompt Engineering. Network and Parallel Computing (NPC), 26-37, 2025. DOI

12. [TNSM'24] Changhao Qiu, Bangbang Ren, Lailong Luo, Guoming Tang, Deke Guo. SFCPlanner: An Online SFC Planning Approach With SRv6 Flow Steering. IEEE Transactions on Network and Service Management (TNSM), 21(4):4625-4638, 2024. DOI

Chinese Publications

1. [CCCF'24] 罗来龙, 郭得科, 郭世泽, 仇常皓, 任棒棒. 网络拓扑抗测绘技术研究与展望. 中国计算机学会通讯, 2024, 20(10):71-78. CCF Digital Library

Contact

Email: qch@nudt.edu.cn