Publications

Full list also on Google Scholar .

2026

CommSAR: Enabling Bidirectional Communication in SAR Imaging Satellites via Shared Waveform

Yimin Zhao , Zhenning Li, Hao Pan , Hua Li, Minhao Cui , Jie Xiong , Yihai Wei, Yang Liu, Haonan Zhao, Mohan Zhang, Weibo Wang, Guihai Chen , Kaiyu Liu, Linghe Kong

Reuses a SAR satellite's existing imaging waveform to open a bidirectional satellite-ground link — no extra spectrum, no satellite hardware changes, and no loss of imaging resolution. Validated on a real in-orbit commercial SAR satellite and a UAV SAR platform.

Cite (BibTeX)
@inproceedings{zhao2026commsar,
  title     = {CommSAR: Enabling Bidirectional Communication in SAR Imaging Satellites via Shared Waveform},
  author    = {Zhao, Yimin and Li, Zhenning and Pan, Hao and Li, Hua and Cui, Minhao and Xiong, Jie and Wei, Yihai and Liu, Yang and Zhao, Haonan and Zhang, Mohan and Wang, Weibo and Chen, Guihai and Liu, Kaiyu and Kong, Linghe},
  booktitle = {Proceedings of the ACM SIGCOMM 2026 Conference},
  year      = {2026}
}

2025

MobiCom 2025 · acceptance 17.08%

B2LoRa: Boosting LoRa Transmission for Satellite-IoT Systems with Blind Coherent Combining

Yimin Zhao *, Weibo Wang*, Xiong Wang, Linghe Kong , Jiadi Yu , Yifei Zhu , Shiyuan Li, Chong He , Guihai Chen

* Equal contribution

Treats a satellite-IoT system's repeated LoRa broadcasts as a virtual antenna array and blindly combines them coherently — aligning packets across time, frequency, and phase to survive ultra-low SNR and extreme Doppler. Demonstrated on a real-world deployment.

Cite (BibTeX)
@inproceedings{zhao2025b2lora,
  title     = {B2LoRa: Boosting LoRa Transmission for Satellite-IoT Systems with Blind Coherent Combining},
  author    = {Zhao, Yimin and Wang, Weibo and Wang, Xiong and Kong, Linghe and Yu, Jiadi and Zhu, Yifei and Li, Shiyuan and He, Chong and Chen, Guihai},
  booktitle = {Proceedings of the 31st Annual International Conference on Mobile Computing and Networking (MobiCom)},
  year      = {2025}
}
INFOCOM 2025 · acceptance 18.66%

Distributed On-Orbit Sparse Coding for Efficient Space Situational Awareness Image Transmission

Yutong Liu , Haiming Jin , Yunxiang Chen, Wangyinjie Yao, Yimin Zhao , Linghe Kong , Lei Dong, Rui Li, Xiaoyang Liu, Guihai Chen

Distributes sparse-coding compute across a satellite constellation to slash the cost of downlinking space situational awareness imagery.

Cite (BibTeX)
@inproceedings{liu2025infocom,
  title     = {Distributed On-Orbit Sparse Coding for Efficient Space Situational Awareness Image Transmission},
  author    = {Liu, Yutong and Jin, Haiming and Chen, Yunxiang and Yao, Wangyinjie and Zhao, Yimin and Kong, Linghe and Dong, Lei and Li, Rui and Liu, Xiaoyang and Chen, Guihai},
  booktitle = {IEEE INFOCOM 2025 - IEEE Conference on Computer Communications},
  year      = {2025}
}

RL-Driven Distributed On-Orbit Sparse Coding for Mobile Space Situational Awareness

Yutong Liu , Haiming Jin , Wangyinjie Yao, Yunxiang Chen, Yimin Zhao , Linghe Kong , Rui Li, Xiao-Yang Liu

A reinforcement-learning-driven extension of distributed on-orbit sparse coding, adapting to mobility for space situational awareness.

Cite (BibTeX)
@article{liu2025tmc,
  title   = {RL-Driven Distributed On-Orbit Sparse Coding for Mobile Space Situational Awareness},
  author  = {Liu, Yutong and Jin, Haiming and Yao, Wangyinjie and Chen, Yunxiang and Zhao, Yimin and Kong, Linghe and Li, Rui and Liu, Xiao-Yang},
  journal = {IEEE Transactions on Mobile Computing},
  year    = {2025}
}