Jiaqi Xu

About Me

I am a Postdoctoral Research Associate at University of California, Irvine. I obtained by Ph.D. at Queen Mary University of London. I graduated from Peking University, obtained B.S. degree in Physics and in Computer Science. I also love to play the piano. See my BiliBili Channel here.

Research Interests

• multiple-input and multiple-output (MIMO), Reconfigurable Intelligent Surfaces (RIS), physical channel modelling, signal processing

News

• [May. 2024] I received The IEEE Communications Society Heinrich Hertz Award for Best Communications Letter!

• [Aug. 2023] I joined UC-Irvine as a Postdoctoral Researcher. I work with Professor A. Lee Swindlehurst in the area of MIMO wireless communication.

• [Aug. 2022] Our recent work with Professor Octavia A. Dobre has been featured in the IEEE Xplore homepage and been listed as the Top 1 Popular Paper in IEEE CL.

Research Projects

• Physically-Consistent Channel Modeling for MIMO Arrays

• STAR-RISs: Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surfaces
  J. Xu, Y. Liu, X. Mu, and, O. A. Dobre
  IEEE Communications Letters.
  [Arxiv] [IEEE] Top 1 listed popular article in IEEE Commun. Lett.

• STAR-RISs: A Correlated T&R Phase-Shift Model and Practical Phase-Shift Configuration Strategies
  J. Xu, Y. Liu, X. Mu, R. Schober, and, H. V. Poor
  IEEE Journal of Selected Topics in Signal Processing.
  [Arxiv] [IEEE]

• A Novel Physics-based Channel Model for Reconfigurable Intelligent Surface-assisted Multi-user Communication Systems
  J. Xu, and Y. Liu
  IEEE Transaction on Wireless Communications.
  [Arxiv] [IEEE]

• Simultaneously Transmitting and Reflecting Intelligent Omni-Surfaces: Modeling and Implementation
  J. Xu, Y. Liu, X. Mu, J. T. Zhou, L. Song, H. V. Poor, L. Hanzo
  IEEE Vehicular Technology Magazine.
  [Arxiv] [IEEE] Popular article on IEEE Vehicular Tech. Mag.

• Simultaneously Transmitting and Reflecting (STAR)-RISs: Are They Applicable to Dual-Sided Incidence?
  J. Xu, X. Mu, J.T. Zhou, and Y. Liu
  IEEE Communications Letters.
  [Arxiv] [IEEE]

• Reconfigurable intelligent surfaces: Principles and opportunities
  Y. Liu, X. Liu, X. Mu, T. Hou, J. Xu, M. Di Renzo, and N. Al-Dhahir
  IEEE Communications Surveys and Tutorials.
  [Arxiv] [IEEE] ESI Highly Cited Paper, Popular article on IEEE COMST, IEEE best readings on RIS

• STAR: Simultaneous Transmission and Reflection for 360° Coverage by Intelligent Surfaces
  Y. Liu, X. Mu, J. Xu, R. Schober, Y. Hao, H. V. Poor, and L. Hanzo
  IEEE Wireless Communication.
  [Arxiv] [IEEE] Popular article on IEEE Wireless Commun. Mag.

• SEAD counter: Self-adaptive counters with different counting ranges
  X. Liu, Y. Xu, P. Liu, T. Yang, J. Xu, L. Wang, G. Xie, X. Li, S. Uhlig
  IEEE/ACM Transactions on Networking. [IEEE]

Attended Conferences

• Performance Analysis for the Coupled Phase-Shift STAR-RISs
  J. Xu, Y. Liu, and X. Mu
  2022 IEEE Wireless Communications and Networking Conference (WCNC).

• Reconfigurable Intelligent Surface-assisted Networks: Phase Alignment Categories
  J. Xu, Y. Liu, and X. Mu
  ICC 2021-IEEE International Conference on Communications.

• A Novel Channel Model for Reconfigurable Intelligent Surface-assisted Wireless Networks
  J. Xu and Y. Liu
  GLOBECOM 2020-2020 IEEE Global Communications Conference.

• Fast Beam Splitting Technique for STAR-RISs with Coupled T&R Phase Shifts
  Y. Liu, J. Xu, and X. Mu
  2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC).

• Joint beamforming optimization for simultaneously transmitting and reflecting (STAR) RIS aided communications
  X. Mu, Y. Liu, J. Xu, L. Guo, and J. Lin
  2021 55th Asilomar Conference on Signals, Systems, and Computers.

• A generic technique for sketches to adapt to different counting ranges
  T. Yang, J. Xu, et. al.
  IEEE INFOCOM 2019-IEEE Conference on Computer Communications.

Services

• Journal Reviewer: IEEE transactions on communication, transactions on wireless communication, journal of selected topics in signal processing, communication letters, wireless communication letters, transactions on green communications and networking.
• Conference Reviewer: IEEE Globecom, ICC, WCNC.

Powered by Jekyll and Minimal Light theme.