Tenure-track Associate Professor, Research Professor

Institute of Information and Communication Technology

Email: xuesong.cai[at]pku.edu.cn

Education:

- 09/2013 - 03/2018 Doctor of Engineering, Tongji University, China

- 09/2009 - 07/2013 Bachelor, Electronics Science and Technology, Tongji University, China

Professional Experience:

- 01/2025 - Present Tenure-track Associate Professor and Research Professor, School of Electronics, Peking University, China;

- 06/2024 - 12/2024 Associate Professor (Reader), Department of Electrical and Information Technology (EIT), Lund University, Sweden;

- 11/2022 - 06/2024 Associate Senior Lecturer, EIT, Lund University;

- 07/2022 - 07/2024 Marie Skłodowska-Curie Actions (MSCA) Individual Fellow, EIT, Lund University;

- 2021 - 2022 Postdoctoral Fellow, EIT, Lund University;

- 2020 - 2021 Postdoctoral Fellow, Wireless Communication Networks Section, Aalborg University, Nokia Bell Labs, Denmark;

- 2018 - 2020 Postdoctoral Fellow, Antenna, Propagation and Millimetre-wave Systems Section, Aalborg University;

- 02/2016 - 08/2016 Visiting researcher, Technical University of Madrid, Spain.

1. X. Cai, E. L. Bengtsson, O. Edfors, and F. Tufvesson, “A switched array sounder for dynamic millimeter- wave channel characterization: Design, implementation, and measurements,” IEEE Transactions on An- tennas and Propagation, vol. 72, no. 7, pp. 5985–5999, 2024

2. Al-Ameri, J. Sanchez, F. Tufvesson, and X. Cai, “A fast rotating-mirror sounder for dynamic millimeter- wave channel characterization,” in IEEE 100th Vehicular Technology Conference (VTC2024-Fall), 2024, pp. 1–5. Best Student Paper Award.

3. X. Li, X. Cai, E. Leitinger, and F. Tufvesson, “A belief propagation algorithm for multipath-based SLAM with multiple map features: A mmwave MIMO application,” in IEEE International Conference on Com- munications Workshops (ICC Workshops), 2024, pp. 269–275

4. X. Cai, M. Zhu, A. Fedorov, and F. Tufvesson, “Enhanced effective aperture distribution function for characterizing large-scale antenna arrays,” IEEE Transactions on Antennas and Propagation, vol. 71, no. 8, pp. 6869–6877, 2023

5. X. Cai, Y. Miao, J. Li, F. Tufvesson, G. F. Pedersen, and W. Fan, “Dynamic mmwave channel emulation in a cost-effective MPAC with dominant-cluster concept,” IEEE Transactions on Antennas and Propagation, vol. 70, no. 6, pp. 4691–4704, June 2022

6. X. Cai et al., “Empirical low-altitude air-to-ground spatial channel characterization for cellular networks connectivity,” IEEE Journal on Selected Areas in Communications, vol. 39, no. 10, pp. 2975–2991, 2021

7. X. Cai, I. Kovács, J. Wigard, and P. Mogensen, “A centralized and scalable uplink power control algorithm in low SINR scenarios,” IEEE Transactions on Vehicular Technology, vol. 70, no. 9, pp. 9583–9587, 2021

8. X. Cai, W. Fan, X. Yin, and G. F. Pedersen, “Trajectory-aided maximum-likelihood algorithm for channel parameter estimation in ultrawideband large-scale arrays,” IEEE Transactions on Antennas and Propaga- tion, vol. 68, no. 10, pp. 7131–7143, 2020

9. X. Cai, G. Zhang, C. Zhang, W. Fan, J. Li, and G. F. Pedersen, “Dynamic channel modeling for indoor millimeter-wave propagation channels based on measurements,” IEEE Transactions on Communications, vol. 68, no. 9, pp. 5878–5891, 2020

10. X. Cai and W. Fan, “A complexity-efficient high resolution propagation parameter estimation algorithm for ultra-wideband large-scale uniform circular array,” IEEE Transactions on Communications, vol. 67, no. 8, pp. 5862–5874, 2019

Elected academy membership:

        IEEE Senior Member, 2023.

Journal editors:

1. Associate Editor, IEEE Antennas and Wireless Propagation Letters, 2024-present

2. Associate Editor, IEEE Transactions on Vehicular Technology, 2023-present

3. Guest Editor, IEEE Open Journal of Antennas and Propagation, and Radio Science, 2024

Prizes and awards:

1. Best Student Paper Award (Supervisor), Vehicular Technology Conference (VTC2024-Fall), 2024.

2. Best Student Paper Nomination (Top 5), European Conference on Antennas and Propagation, 2024.

3. Wallenberg Academy Fellows Nomination, 2024.

4. IEEE Antennas and Propagation Ulrich L. Rohde Innovative Conference Paper Award Nomination (Top 5), IEEE Conference on Antenna Measurements Applications, Dec. 2022.

5. Best Paper Award (First author), The Seventeenth ICWMC, July 2021.

6. First Prize, IMT 2020 Wireless Communication Artificial Intelligence (AI) Competition, 2021.

7. Marie Sklodowska-Curie Actions Seal of Excellence, March 2019.

8. Distinguished Doctorate Graduate, Shanghai Municipal Education Commission, China, Mar. 2018.

9. National Ph.D. Scholarship (the highest honor for Ph.D. candidates in China), Sept. 2016.

10. Huawei Genius Youth, Huawei, 2021. A program for the most talented young researchers in the world. An annual salary of around 260 kEUR was offered to me. Renounced.

11. ZTE Blue Sword - Future Leader (less than 10 offers were given in China), ZTE, 2017. (Renounced)

Assignments in academic organizations/actions:

1. Chair of the Marie Curie Alumni Association (MCAA) Sweden Chapter, 2024.

2. Subcommittee Chair of the IEEE Vehicular Technology Society (VTS) Propagation Committee, 2024.

3. IEEE AP-S Young Professional Ambassador, 2024.

4. Member for Delegates Assembly, European Association of Communication and Networking (EURA- CON), 2023-2025.

5. Management Committee Substitute Member, COST Action: CA20120 - Intelligence-Enabling Radio Communications for Seamless Inclusive Interactions (INTERACT), 2023.

Invited talks:

1. Keynote Speaker, “Understanding Mobile Millimeter-wave Channels for Communication and Sensing”, The 2024 Swedish Communication Technologies Workshop (VTS sponsored), Gothenburg, Sweden, 2024.

2. Keynote Speaker, “Understanding Mobile Millimeter-wave and sub-THz Channels for Communication and Sensing”, Workshop on mobile-to-mobile channel modeling and propagation for B5G, IEEE 99th Vehicular Technology Conference (VTC2024-Spring), Singapore, 2024.

3. Invited Speaker, IEEE AP-S Young Professional Ambassador Webinar Series, “Mobile Millimeter-Wave Channel Characterization: Design, Implementation and Measurements”, 2024.

4. Invited Speaker, “High-Resolution Parameter Estimation for Mobile Radio Channels”, IEEE AP-S MTT Joint Chapter, 2024.

5. Invited Speaker, “Mobile Millimeter-Wave Channel Characterization: Design, Implementation and Measurements”, IEEE MTT-S/AP-S SBC-NIT Warangal, 2024.

6. Invited Speaker, “Understanding Millimeter-wave and sub-THz Channels for Communication and Sens- ing”, IEEE AP-S Student Branch Chapter at IIT Patna, India, 2024.

7. “Wireless Communications: Past, Present, and Future”, South Sweden Science and Technology Forum, Lund, Sweden, 2023.

8. “High-Resolution Parameter Estimation for Radio Channels”, EU H2020 MSCA ETN Ph.D. students training workshop, Lund University, Lund, Sweden, 2021.

Granted patents:

1. An adaptive method for antenna radiation pattern based on Doppler, CN105228101B, 2018-8-24

2. A performance evaluation method and system for TDOA positioning, CN108594284B, 2021-3-30

3. A low-altitude UAV channel simulation method in time-delay domain, CN112600635B, 2021-10-08

4. A method of tracking low-altitude UAV channel multipath components, CN112616132B, 2022-04-01.

5. Advanced course “Wireless System Design Principles”, Course Responsible, 7.5 credits, Lund University, 2022, 2023, and 2024.

6. “Wireless Communications meet THz”, NMT days for high school students and teachers in South Sweden, Lund University, March 2023 and 2024.