Jiaqi Xu | Uiversity of California, Irvine

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 recent performance of Chopin’s Polonaise Fantasy here].

Research Interests

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

News

[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.

Journal Publications

Girl in a jacket

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

Regular 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.