Xinyi Li「李欣怡」

I received my PHD degree in 2023 from Northwest University, under supervisor of Prof. Xiaojiang Chen. I am currently a postdoctoral fellow in the Department of Computer Science and Technology at Tsinghua University. Email: xinyili@tsinghua.edu.cn

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Research Topics

My research focuses on wireless sensing and wireless networking.

News

[Apr 2025] New! Our work MateGen is accepted by ACM MobiSys.

[Mar 2025] Our work MASA is accepted by IEEE TMC.

[Aug 2024] Our work RISiren is accepted by ACM CCS2024.

[Apr. 2024] Our work MetaAng is accepted by ACM IMWUT/Ubicomp 2024.

[Nov. 2023] Our work RFMagus is conditionally accepted by ACM Mobicom 2024. See you in Washington D.C.!

Conference Publications (* equal contribution)

[C7] MetaGen: LLM-Driven Generative Framework for Intelligent Metasurface Element
Yizhe Zhao,  Lili Chen,  Xinyi Li,  Yue-Jiang Dong,  Ju Ren,  and Yaoxue Zhang
The 23rd ACM International Conference on Mobile Systems, Applications, and Services
ACM MobiSys 2025 , June 23 - 27, 2025, Anaheim, California, US
Paper / Slides / Cite

[C6] Unveiling Contactless Sensing with LiDAR Mobility
Junying Hu,  Yongjian Fu,  Lili Chen,  Xinyi Li,  Xue Sun,  Ju Ren,  and Yaoxue Zhang
IEEE UIC 2024
Best Paper Award , Denarau Island, Fiji, December 2024
Paper / Cite

@inproceedings{hu2024unveiling, title={Unveiling Contactless Sensing with LiDAR Mobility}, author={Hu, Junying and Fu, Yongjian and Chen, Lili and Li, Xinyi and Sun, Xue and Ren, Ju and Zhang, Yaoxue}, booktitle={2024 IEEE Smart World Congress (SWC)}, pages={487--494}, year={2024}, organization={IEEE} } }

[C5] RISiren: Wireless Sensing System Attacks via Metasurface
Chenghan Jiang,  Jinjiang Yang,  Xinyi Li,  Qi Li,  Xinyu Zhang,  and Ju Ren
The 31th ACM Conference on Computer and Communications Security (CCS)
ACM CCS 2024, Salt Lake City, USA, October 2024
Paper / Cite

@inproceedings{jiang2024risiren, title={RISiren: Wireless Sensing System Attacks via Metasurface}, author={Jiang, Chenghan and Yang, Jinjiang and Li, Xinyi and Li, Qi and Zhang, Xinyu and Ren, Ju}, booktitle={Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security}, pages={3332--3345}, year={2024} } }

[C4] RFMagus: Programming the Radio Environment With Networked Metasurfaces
Xinyi Li,  Gaoteng Zhao,  Ling Chen,  Xinyu Zhang,  and Ju Ren
Proceedings of the 30th Annual International Conference On Mobile Computing And Networking
ACM Mobicom 2024, Washington, USA, September 2024, AR=103/494
Paper / Cite

@inproceedings{li2024rfmagus, title={RFMagus: Programming the Radio Environment With Networked Metasurfaces}, author={Li, Xinyi and Zhao, Gaoteng and Chen, Ling and Zhang, Xinyu and Ren, Ju}, booktitle={Proceedings of the 30th Annual International Conference on Mobile Computing and Networking}, pages={16--30}, year={2024} } }

[C3] RF-Bouncer: A Programmable Dual-band Metasurface for Sub-6 Wireless Networks
Xinyi Li*,  Chao Feng*,  Xiaojing Wang,  Yangfan Zhang,  Yaxiong Xie,  and Xiaojiang Chen
20th USENIX Symposium on Networked Systems Design and Implementation
USENIX NSDI 2023, BOSTON, MA, USA
Paper / Cite

@inproceedings{li2023rf, title={$\{$RF-Bouncer$\}$: A Programmable Dual-band Metasurface for Sub-6 Wireless Networks}, author={Li, Xinyi and Feng, Chao and Wang, Xiaojing and Zhang, Yangfan and Xie, Yaxiong and Chen, Xiaojiang}, booktitle={20th USENIX Symposium on Networked Systems Design and Implementation (NSDI 23)}, pages={389--404}, year={2023} }

[C2] Protego: Securing wireless communication via programmable metasurface
Xinyi Li*,  Chao Feng*,  Fengyi Song,  Chenghan Jiang,  Yangfan Zhang,  Ke Li,  Xinyu Zhang,  and Xiaojiang Chen
Proceedings of the 28th Annual International Conference on Mobile Computing And Networking
ACM Mobicom 2022, InterContinental Sydney, Australia
Paper / Cite

@inproceedings{li2022protego, title={Protego: securing wireless communication via programmable metasurface}, author={Li, Xinyi and Feng, Chao and Song, Fengyi and Jiang, Chenghan and Zhang, Yangfan and Li, Ke and Zhang, Xinyu and Chen, Xiaojiang}, booktitle={Proceedings of the 28th Annual International Conference on Mobile Computing And Networking}, pages={55--68}, year={2022} }

[C1] RFlens: Metasurface-Enabled Beamforming for IoT Communication and Sensing
Chao Feng*,  Xinyi Li*,  Yanfan Zhang,  Jingxiao Wang,  Liqiong Chang,  Fuwei Wang,  Xinyu Zhang,  and Xiaojiang Chen
Proceedings of the 27th Annual International Conference on Mobile Computing and Networking
ACM Mobicom 2021, New Orleans, United States
Paper / Slides / Cite

Journal Publications

[J4] MASA: Multimodal Federated Learning through Modality-Aware and Secure Aggregation
Jialin Guo,  Yongjian Fu,  Zhiwei Zhai,  Xinyi Li,  Yongheng Deng,  Sheng Yue,  Lili Chen,  Hao Pan,  and Ju Ren
IEEE Transactions on Mobile Computing
IEEE TMC 2025,
Paper / Slides / Cite

[J3] Pushing the Limits of Acoustic Spatial Perception via Incident Angle Encoding
Yongjian Fu,  Yongzhao Zhang,  Hao Pan,  Yu Lu,  Xinyi Li,  Lili Chen,  Ju Ren,  Xiong Li,  Xiaosong Zhang,  and Yaoxue Zhang
ACM IMWUT/Ubicomp 2024, Melbourne, Australia, October 2024
Paper / Cite

@article{fu2024pushing, title={Pushing the limits of acoustic spatial perception via incident angle encoding}, author={Fu, Yongjian and Zhang, Yongzhao and Pan, Hao and Lu, Yu and Li, Xinyi and Chen, Lili and Ren, Ju and Li, Xiong and Zhang, Xiaosong and Zhang, Yaoxue}, journal={Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies}, volume={8}, number={2}, pages={1--28}, year={2024}, publisher={ACM New York, NY, USA} }

[J2] Caring: Towards Collaborative and Cross-Domain Wi-Fi Sensing: A Case Study for Human Activity Recognition
Xinyi Li,  Fengyi Song,  Mina Luo,  Kang Li,  Liqiong Chang,  Xiaojiang Chen,  and Zheng Wang
IEEE Transactions on Mobile Computing
IEEE TMC 2023,
Paper / Cite

@article{li2023caring, title={Caring: Towards Collaborative and Cross-domain Wi-Fi Sensing}, author={Li, Xinyi and Song, Fengyi and Luo, Mina and Li, Kang and Chang, Liqiong and Chen, Xiaojiang and Wang, Zheng}, journal={IEEE Transactions on Mobile Computing}, year={2023}, publisher={IEEE} }

[J1] CrossGR: Accurate and Low-cost Cross-target Gesture Recognition using Wi-Fi
Xinyi Li,  LiQiong Chang,  Fangfang Song,  Ju Wang,  Xiaojiang Chen,  Zhanyong Tang,  and Zheng Wang
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
ACM UbiComp 2021, ACM New York, NY, USA
Paper / Cite

@article{li2021crossgr, title={CrossGR: Accurate and low-cost cross-target gesture recognition using Wi-Fi}, author={Li, Xinyi and Chang, Liqiong and Song, Fangfang and Wang, Ju and Chen, Xiaojiang and Tang, Zhanyong and Wang, Zheng}, journal={Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies}, volume={5}, number={1}, pages={1--23}, year={2021}, publisher={ACM New York, NY, USA} }

Professional Services
  • Reivewer, IEEE Transactions on Mobile Computing
  • Reivewer, ACM Transactions on Internet of Things
  • TPC, 2024 MSN
  • TPC, 2024 UIC
  • TPC, 2024 NPC
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Updated at Dec. 2023
Thanks Jon Barron for this amazing work