Xu Shi (史旭)

Xu Shi (史旭)

a Ph.D. in pursuit of happiness

About me

Xu Shi received the B.S. and Ph.D. degrees from the Department of Electronic Engineering, Tsinghua University, Beijing, China, in 2019 and 2024, respectively. He is currently a Post-Doctoral Research Associate with the Department of Electronic Engineering, Tsinghua University. He has published more than 20 journal articles and conference papers. His research interests include XL-MIMO systems, THz communications, reconfigurable intelligent surface aided communications, and channel twining.

Google Scholar IEEE

1.Research Grants

  1. 模型-数据混合驱动的超大规模阵列高效波束管理技术研究, 北京市自然科学青年基金(4254069), 2025/01~2027/12, 主持, 20万.
  2. 面向超大规模阵列通信的近场波束管理技术研究, 中国博士后科学基金第75批面上(2024M761671), 2025/01~2026/06, 主持, 8万.
  3. 基于信道图谱的水声超大阵列通信关键技术研究, 2025国家资助博士后研究人员计划B档(GZB20250143), 2025/07~2026/06, 主持, 18万/年.
  4. 2024年清华大学“水木学者”计划

2.Publications

2.1. Journal Papers

  1. X. Shi, J. Wang*, Z. Sun and J. Song, “Spatial-chirp Codebook-based Hierarchical Beam Training for Extremely Large-Scale Massive MIMO,” IEEE Trans. Wirel. Commun., vol. 23, no. 4, pp. 2824-2838, April 2024, doi: 10.1109/TWC.2023.3303229. (ESI Highly Cited Paper)
  2. X. Shi, J. Wang* and J. Song, “Triple-Structured Compressive Sensing-based Channel Estimation for RIS-aided MU-MIMO Systems,” IEEE Trans. Wirel. Commun., vol. 21, no. 12, pp. 11095-11109, Dec. 2022, doi: 10.1109/TWC.2022.3189686.
  3. X. Shi, J. Du, J. Wang*, K. Huang, and T. Quek, “Beamforming Design for AirComp-Aided Massive MIMO System: A Mutual Information Perspective,” IEEE Trans. Wirel. Commun., vol. 23, no. 10, pp. 14335-14349, Oct. 2024, doi: 10.1109/TWC.2024.3412690.
  4. X. Shi, J. Wang*, C You, and J. Song, “Double-side XL-MIMO: Codebook-based Beamfocusing and Estimation Design,” IEEE Trans. Commun., vol. 73, no. 5, pp. 3441-3455, May 2025, doi: 10.1109/TCOMM.2024.3492092. .
  5. X. Shi, J. Wang*, and J. Song, “Frequency-Scanning-Based Fast Multiuser Beam Training for Wideband Massive MIMO,” IEEE Internet Things J., vol. 11, no. 11, pp. 19852-19865, 1 June1, 2024, doi: 10.1109/JIOT.2024.3367627.
  6. X. Shi, J. Wang*, C. Pan and J. Song, “Low-Complexity Hybrid Precoding Algorithm Based on Log-Det Expansion for GenSM-Aided MmWave MIMO System,” IEEE Trans. Veh. Technol., vol. 70, no. 2, pp. 1554-1564, Feb. 2021, doi: 10.1109/TVT.2021.3054398.
  7. X. Shi, J. Wang* and J. Song, “Triple-Structured Sparsity-Based Channel Feedback for RIS-Assisted MU-MIMO System,” IEEE Commun. Lett., vol. 26, no. 5, pp. 1141-1145, May 2022, doi: 10.1109/LCOMM.2022.3147220.
  8. X. Shi, H. Wang, J. Zuo, and J. Wang*, “Time-Delay-Aided Fast Beam Training for Near-Field Wideband XL-MIMO Systems,” Tsinghua Sci. Technol., early access, 2025, doi: 10.26599/TST.2025.9010112.
  9. H. Wang, X. Shi*, H. Zhang, Y. Cao and J. Wang, “Energy Efficiency Optimization for Symbol-Level Precoding-Aided RSMA MIMO System,” IEEE Wirel. Commun. Lett, early access, 2025, doi: 10.1109/LWC.2025.3592201.
  10. J. Wang*, X. Zhang, X. Shi and J. Song, “Higher Spectral Efficiency for mmWave MIMO: Enabling Techniques and Precoder Designs,” IEEE Commun. Mag., vol. 59, no. 4, pp. 116-122, April 2021, doi: 10.1109/MCOM.001.2000763.
  11. Y. Cao, J. Wang*, X. Shi, and W. Ni, “Lightweight and Self-Evolving Channel Twinning: An Ensemble DMD-Assisted Approach,” IEEE Trans. Wirel. Commun., early access, 2025, doi: 10.1109/TWC.2025.3564276.
  12. X. Wang, X. Shi, J. Tan, J. Wang*, and Z. Sun, “Orthogonal Hyperbolic Frequency Division Multiplexing Modulation for Underwater Acoustic Communications,” IEEE Trans. Wirel. Commun., vol. 24, no. 7, pp. 6180-6194, July 2025, doi: 10.1109/TWC.2025.3552087.
  13. X. Wang, X. Shi, J, Wang* and J. Song, “On the Doppler Squint Effect in OTFS Systems over Doubly-Dispersive Channels: Modeling and Evaluation,” IEEE Trans. Wirel. Commun., vol. 22, no. 12, pp. 8781-8796, Dec. 2023, doi: 10.1109/TWC.2023.3265989.
  14. X. Wang, X. Shi, J. Wang* and Z. Sun, “Iterative LMMSE-SIC Detector for DSE-Aware Underwater Acoustic OTFS Systems,” IEEE Trans. Veh. Technol., vol. 73, no. 7, pp. 9895-9910, July 2024, doi: 10.1109/TVT.2024.3362894.
  15. X. Wang, X. Shi and J. Wang*, “Sparse Bayesian Learming-Based Of-grid Estimaton of OTEs chamnels with Doppler Squint”, Tsinghua Sci. Technol., vol. 29, no. 6, pp. 1821-1828, December 2024, doi: 10.26599/TST.2023.9010093.
  16. J. Tan, Z. Ren, X. Shi, Z. Sun and J. Wang, “Deployment of Acoustic Reconfigurable Intelligent Surface in Underwater Acoustic Communications under Deep-Sea Long-Range Scenarios”, IEEE Access, early access, 2025, doi: 10.1109/ACCESS.2025.3607323.

2.2. Conference Papers

  1. X. Shi, H. Zhang, J. Tan, Y. Cao and J. Wang, “Full-Phase-Range Acoustic RIS: Implementation and Beamforming Design,” IEEE International Conference on Communications (ICC 2025).
  2. X. Shi, X. Wang, J. Tan and J. Wang, “Sparse Estimation for XL-MIMO with Unified LoS/NLoS Representation,” Proc. IEEE Int. Conf. Commun (ICC 2024).
  3. X. Shi, J. Wang, Z. Sun and J. Song, “Chirp-based Hierarchical Beam Training for Extremely Large-Scale Massive MIMO,” IEEE International Conference on Communications (ICC 2023).(Student Grant)
  4. X. Shi, J. Wang, G. Chen and J. Song, “Triple-Structured Compressive Sensing-based Channel Estimation for RIS-aided MU-MIMO Systems,” IEEE Global Communications Conference (GLOBECOM 2021).
  5. X. Shi and J. Wang, “Low-Complexity Hybrid Precoder Design for GenSM-Aided mmWave MIMO,” 2020 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2020.
  6. H. Wang, X. Shi, H. Zhang, Y. Cao and J. Wang, “Beamforming-Codebook-Aware Channel Knowledge Map Construction for Multi-Antenna Systems,” IEEE Global Communications Conference (GLOBECOM 2025).
  7. H. Zhang, X. Wang, X. Shi, J. Wang and Z. Yang, “RSMA-Assited and Transceiver-Coordinated ICI Management for MIMO-OFDM System,” IEEE Global Communications Conference (GLOBECOM 2025)
  8. H. Zhang, X. Wang, X. Shi and J. Wang, “Deep Learning-Based FDD Massive MIMO-RSMA against Time-Varying Channels,” IEEE/CIC International Conference on Communications in China (ICCC 2025).
  9. X. Wang, X. Shi, J. Wang, and J. Song, “Input-output relation and low-complexity receiver design for CP-OTFS systems with Doppler squint,” IEEE Globecom Workshops (GC Wkshps 2023).(Best Paper Award)
  10. X. Wang, J. Wang and X. Shi, “A Hungarian Algorithm Based Hybrid Precoding Scheme for mmWave Massive MIMO Systems,” IEEE Wireless Communications and Networking Conference (WCNC 2022).
  11. X. Wang, J. Wang and X. Shi, “A Low-Complexity Hybrid Precoding Scheme for mmWave MIMO Systems with Dynamic Subarrays,” International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB 2021).

2.3. Patents

  1. 王劲涛, 史旭, 潘长勇, 阳辉, “RIS级联信道多用户联合的结构化稀疏估计方法及装置”, ZL202111209673.4. (授权日期：2022.12.27).
  2. 王劲涛, 史旭, 夏亮, 王启星, 程执天, “波束追踪方法、装置、设备及存储介质”, CN202310454244.6.
  3. 曹亚帅, 王鹤潼, 王劲涛, 史旭, “基于层叠式超表面的电磁波域帧级干扰利用预编码方法”, CN202510304288.X.
  4. 王劲涛, 王薛涵, 史旭, 张超, “时延-多普勒域逐元素数据检测方法、装置、设备及介质”, CN202410403522.X.
  5. 王劲涛, 王薛涵, 史旭, 潘长勇, “多用户时延-多普勒域下行数据传输方法及装置”, CN202410403518.3.

Academic Activities

Reviewer & TPC

  • IEEE Communication Magazine
  • IEEE JSAC, IEEE TWC, IEEE TCOM, IEEE TVT, IEEE IOTJ, IEEE CL, IEEE WCL
  • IEEE ICC, IEEE GLOBECOM, IEEE WCNC, IEEE/CIC ICCC
  • TPC: IEEE WCNC 2025

Conference Workshop/Symposia Chair

Null

Eduction & Work Experience

  • B.S. in the Department of Electronic Engineering, Tsinghua University, 2015.9~2019.6
  • Ph.D. in the Department of Electronic Engineering, Tsinghua University, 2019.9~2024.6. Advisor: Prof. Jintao Wang
  • Visiting researcher in Department of Electrical and Electronic Engineering, the University of Hong Kong, 2023.10~2024.1. Advisor: Prof. Kaibin Huang
  • Post Doctor, in the Department of Electronic Engineering, Tsinghua University, 2024.7~2025.6. Advisor: Prof. Jintao Wang