I am currently a postdoc senior researcher at RWTH Aachen University, Germany. Previously, I received my M.Sc. degree and my Ph.D. degree in electrical engineering, information technology and computer engineering from RWTH Aachen University, respectively in 2019 with Springorum-Medal Award and in Mar. 2023 with Borchers-Medallion Award. Before those, I received my B.Sc. Degree in automation from Beijing University of Aeronautics & Astronautics, China, in 2016. My current research interests are in unmanned aerial vehicle (UAV)-assisted wireless networks, ultra-reliable low-latency communications (URLLC), wireless power transfer (WPT) technologies and optimization techniques.

Short CV

• 03.2023 – now, Postdoc senior researcher, RWTH Aachen University, Germany.
• 11.2019 – 03.2023, Ph.D study & research assistant, RWTH Aachen University, Germany.
• 04.2019 – 10.2019, Research Intern, Robert Bosch GmbH, Renningen, Germany.
• 03.2017 – 09.2019, Master study, RWTH Aachen University, Germany.
• 09.2012 – 06.2016, Bachelor study, Beijing University of Aeronautics & Astronautics, China. 

Awards

• Borchers Medallion Award, awarded by RWTH Aachen University for outstanding doctorate achievements, Germany, 2024.
• ICT Young Researcher Award 2022, awarded by ICT Profile Area of RWTH Aachen University, Germany, 2022.
• Exemplary Reviewer, issued by Editorial Board of the IEEE Transaction on Communications (TCOM), 2022.
• Springorum Medal Award, awarded by RWTH Aachen University for outstanding graduate grades with distinction, Germany, 2020. 

Academical Activities

• Serving as an Editor of EURASIP Journal on Wireless Communications and Networking, since Dec. 2023.
• Organizing a Special Issue titled “Energy Resilient and Sustainable Communication for Green 6G” at EURASIP Journal on Wireless Communications and Networking, 2024.
• Organized a Special Session at 2024 ISWCS.
• Served as TPC Chair at 2023 IEEE iThings Workshop IoT-PS.
• Served as Session Chair at 2022 IEEE ICC, 2024 IEEE WCNC, 2024 ISWCS, 2024 IEEE Globecom.
• Served as TPC Member at 2022 IEEE Smart Data, 2022 ISWCS, 2024 IEEE Smart Data. 

Publications

Patent Journal Publications Conference Publications

Patent

1. A. Schmeink, Y. Hu, X. Yuan, “Artificial Potential Field Based Trajectory Design Strategy” (Verfahren und Vorrichtung zur Bestimmung einer kontinuierlichen Trajektorie eines Fahrzeuges, sowie deren Verwendung), DPMA German patent field, April 2021.

Journal Publications

(*Corresponding Author)

1. B. Li, X. Yuan*, Y. Hu and A. Schmeink, “Transmission Latency Minimization in Full-Duplex Relaying Network Operating With Finite Blocklength Codes,” IEEE Journal on Selected Areas in Communications, accepted, 2024.
2. Y. Huang, Y. Hu, X. Yuan*, and A. Schmeink, “Analytical Optimal Joint Resource Allocation and Continuous Trajectory Design for UAV-Assisted Covert Communications,” IEEE Transactions on Wireless Communications, early access, 2024.
3. X. Yuan, Y. Hu and A. Schmeink, “Optimal Joint Design on Continuous Trajectory and Power Control for UAV-Assisted Energy Constrained Communications,” IEEE Transactions on Vehicular Technology, vol. 73, no. 9, pp. 13060-13075, Sept. 2024.
4. X. Yuan, B. Li, Y. Hu, Y. Zhu and A. Schmeink, “Toward Scalable Clustered URLLC IoT Network: Resource Allocation and Cooperation Scheduling for Reliability Enhancement,” IEEE Internet of Things Journal, vol. 11, no. 15, pp. 25982-25996, Aug. 2024.
5. X. Yuan, Y. Zhu, Y. Hu, B. Ai and A. Schmeink, “Optimal User Grouping and Analytical Joint Resource Allocation Design in Hybrid BC-TDMA Assisted URLLC Networks,” IEEE Transactions on Wireless Communications, vol. 23, no. 5, pp. 4459-4474, May 2024.
6. X. Yuan, Y. Hu, J. Zhang, and A. Schmeink, “Joint User Scheduling and UAV Trajectory Design on Completion Time Minimization for UAV-Aided Data Collection,” IEEE Transactions on Wireless Communications, vol. 22, no. 6, pp. 3884-3898, June 2023.
7. X. Yuan, H. Jiang, Y. Hu, A. Schmeink, “Joint Analog Beamforming and Trajectory Planning for Energy-Efficient UAV-Enabled Nonlinear Wireless Power Transfer,” IEEE Journal on Selected Areas in Communications, vol. 40, no. 10, pp. 2914-2929, Oct. 2022.
8. X. Yuan, Y. Hu, R. Schober and A. Schmeink, “Convexity Analysis of Nonlinear Wireless Power Transfer With Multiple RF Sources,” IEEE Transactions on Vehicular Technology, vol. 71, no. 10, pp. 11311-11316, Oct. 2022.
9. X. Yuan, Y. Zhu, Y. Hu, H. Jiang, C. Shen and A. Schmeink, “Latency-Critical Downlink Multiple Access: A Hybrid Approach and Reliability Maximization,” IEEE Transactions on Wireless Communications, vol. 21, no. 11, pp. 9261-9275, Nov. 2022.
10. X. Yuan, H. Jiang, Y. Hu, B. Li, E. Jorswieck and A. Schmeink, “Joint Power and Data Allocation in Multi-Carrier Full-Duplex Relaying Networks Operating With Finite Blocklength Codes,” IEEE Transactions on Wireless Communications, vol. 21, no. 3, pp. 1513-1528, March 2022.
11. X. Yuan, Y. Hu, D. Li and A. Schmeink, “Novel Optimal Trajectory Design in UAV-Assisted Networks: A Mechanical Equivalence-Based Strategy,” IEEE Journal on Selected Areas in Communications, vol. 39, no. 11, pp. 3524-3541, Nov. 2021.
12. X. Yuan, Y. Hu and A. Schmeink, “Joint Design of UAV Trajectory and Directional Antenna Orientation in UAV-Enabled Wireless Power Transfer Networks,” IEEE Journal on Selected Areas in Communications, vol. 39, no. 10, pp. 3081-3096, Oct. 2021.
13. X. Yuan, T. Yang, Y. Hu, J. Xu and A. Schmeink, “Trajectory Design for UAV-Enabled Multiuser Wireless Power Transfer With Nonlinear Energy Harvesting,” IEEE Transactions on Wireless Communications, vol. 20, no. 2, pp. 1105-1121, Feb. 2021.
14. Y. Gao, M. Liu, X. Yuan, Y. Hu, P. Sun, A. Schmeink, “Federated Deep Reinforcement Learning Based Trajectory Design for UAV-Assisted Networks with Mobile Ground Devices,” Scientific Reports, vol. 14, no. 1, 2024.
15. H. Xu, Y. Hu, Y. Zhu, X. Yuan and A. Schmeink, “Achieving Secure and Fresh Information Updates via Short-Packet Communications,” IEEE Wireless Communications Letters, vol. 13, no. 11, pp. 3232-3236, Nov. 2024.
16. N. Guo, X. Yuan, Y. Hu, B. Ai and A. Schmeink, “Achievable Rate Maximization for Multi-Antenna WPT Enabled Symbiotic Communication Network,” IEEE Transactions on Cognitive Communications and Networking, vol. 10, no. 5, pp. 1690-1703, Oct. 2024.
17. P. Wu, X. Yuan, Y. Hu and A. Schmeink, “Trajectory and User Assignment Design for UAV Communication Network With No-Fly Zone,” IEEE Transactions on Vehicular Technology, vol. 73, no. 10, pp. 15820-15825, Oct. 2024.
18. Y. Gao, X. Yuan, D. Yang, Y. Hu, Y. Cao, A. Schmeink, “UAV-Assisted MEC System with Mobile Ground Terminals: DRL-Based Joint Terminal Scheduling and UAV 3D Trajectory Design,” IEEE Transactions on Vehicular Technology, vol. 73, no. 7, pp. 10164-10180, July 2024.
19. P. Wu, X. Yuan, Y. Hu and A. Schmeink, “Joint Power Allocation and Trajectory Design for UAV-Enabled Covert Communication,” IEEE Transactions on Wireless Communications, vol. 23, no. 1, pp. 683-698, Jan. 2024.
20. Y. Li, X. Yuan, Y. Hu, J. Yang and A. Schmeink, “Optimal UAV Trajectory Design for Moving Users in Integrated Sensing and Communications Networks,” IEEE Transactions on Intelligent Transportation Systems, vol. 24, no. 12, pp. 15113-15130, Dec. 2023.
21. N. Guo, X. Yuan, Y. Hu and A. Schmeink, “Reliability-Oriented Resource Allocation for Wireless Powered Short Packet Communications With Multiple WPT Sources,” IEEE Transactions on Wireless Communications, vol. 22, no. 12, pp. 8983-8998, Dec. 2023.
22. Y. Zhu, X. Yuan, Y. Hu, R. F. Schaefer and A. Schmeink, “Trade Reliability for Security: Leakage-Failure Probability Minimization for Machine-Type Communications in URLLC,” IEEE Journal on Selected Areas in Communications, vol. 41, no. 7, pp. 2123-2137, July 2023.
23. Y. Zhu, X. Yuan, Y. Hu, T. Wang, M. C. Gursoy and A. Schmeink, “Low-Latency Hybrid NOMA-TDMA: QoS-Driven Design Framework,” IEEE Transactions on Wireless Communications, vol. 22, no. 5, pp. 3006-3021, May 2023.
24. Y. Zhu, Y. Hu, X. Yuan, M. C. Gursoy, H. V. Poor and A. Schmeink, “Joint Convexity of Error Probability in Blocklength and Transmit Power in the Finite Blocklength Regime,” IEEE Transactions on Wireless Communications, vol. 22, no. 4, pp. 2409-2423, April 2023.
25. Y. Hu, X. Yuan, G. Zhang and A. Schmeink, “Sustainable Wireless Sensor Networks With UAV-Enabled Wireless Power Transfer,” IEEE Transactions on Vehicular Technology, vol. 70, no. 8, pp. 8050-8064, Aug. 2021.
26. Y. Hu, X. Yuan, T. Yang, B. Clerckx and A. Schmeink, “On the Convex Properties of Wireless Power Transfer With Nonlinear Energy Harvesting,” IEEE Transactions on Vehicular Technology, vol. 69, no. 5, pp. 5672-5676, May 2020.
27. Y. Hu, X. Yuan, J. Xu and A. Schmeink, “Optimal 1D Trajectory Design for UAV-Enabled Multiuser Wireless Power Transfer,” IEEE Transactions on Communications, vol. 67, no. 8, pp. 5674-5688, Aug. 2019.

Conference Publications

(*Corresponding Author)

1. B. Li, X. Yuan*, Y. Hu, B. Ai and A. Schmeink, “Minimizing Transmission Latency in Two-Hop Full-Duplex Relaying with Finite Blocklength Codes,” GLOBECOM 2024 - 2024 IEEE Global Communications Conference, accepted, 2024.
2. X. Yuan, Y. Zhou, Y. Hu and A. Schmeink, “Optimal Blocklength Allocation in QoS-Constrained URLLC Networks with Personalised Latency Requirements,” 2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Lucca, Italy, 2024, pp. 181-185.
3. X. Yuan, H. Zhang, P. Zheng and A. Schmeink, “Cooperative Power Control and Beamforming Design for Multi-Source Enabled Wireless Power Transfer Networks,” 2024 18th European Conference on Antennas and Propagation (EuCAP), Glasgow, United Kingdom, 2024, pp. 1-5.
4. X. Yuan, Y. Hu, T. Wang and A. Schmeink, “Analytical Optimal Blocklength Allocation in Multiuser URLLC Networks with Individual Latency Constraints,” 2024 IEEE Wireless Communications and Networking Conference (WCNC), Dubai, United Arab Emirates, 2024, pp. 1-6.
5. X. Yuan, B. Li, Y. Zhu, Y. Hu, A. Schmeink, “Joint Resource Allocation and Reliability Maximization in NOMA-Assisted Cooperative URLLC Networks,” 2024 IEEE Wireless Communications and Networking Conference (WCNC), Dubai, United Arab Emirates, 2024, pp. 1-6.
6. X. Yuan, P. Wu, Y. Hu and A. Schmeink, “ULA-Based Analog Beamforming and Mode Design for LAP-Assisted Multicasting Communication,” 2023 IEEE 24th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Shanghai, China, 2023, pp. 506-510.
7. X. Yuan, Y. Huang, Y. Hu and A. Schmeink, “Optimal Trajectory Design for UAV-Assisted Wireless Communication with Discrete Code Rates,” 2023 IEEE International Conference on Communications Workshops (ICC Workshops), Rome, Italy, 2023, pp. 1660-1665.
8. X. Yuan, B. Li, Y. Hu, Y. Zhu and A. Schmeink, “Resource Allocation and Cooperation Scheduling for Reliability Maximization in Cluster Head Based Cooperative URLLC Networks,” 2023 IEEE International Conference on Communications Workshops (ICC Workshops), Rome, Italy, 2023, pp. 1143-1148.
9. X. Yuan, W. Yao, X. Luo, Z. Bao, and A. Schmeink, “Throughput Maximization in Latency-Critical Downlink Communication with Hybrid BC-TDMA Strategy,” 2022 International Symposium on Wireless Communication Systems (ISWCS), Hangzhou, China, 2022, pp. 1-6.
10. X. Yuan, W. Li, Y. Hu, and A. Schmeink, “Beamforming Design and Resource Allocation for IRS-Assisted NOMA Cognitive Radio System,” 2022 International Symposium on Wireless Communication Systems (ISWCS), Hangzhou, China, 2022, pp. 1-6.
11. X. Yuan, Y. Hu, X. Wen, M. Petrova and A. Schmeink, “Optimal Continuous Trajectory Design for UAV-Assisted Reliable Communication Operating with Finite Blocklength Codes,” European Wireless 2022; 27th European Wireless Conference, Dresden, Germany, 2022, pp. 1-6.
12. X. Yuan, G. Sun, Y. Hu, L. Wu, H. Wang, and A. Schmeink, “UAV Trajectory Design on Completion Time Minimization of WPT Task in UAV-Enabled Multi-User Network,” 2022 IEEE International Conference on Communications Workshops (ICC Workshops), 2022, pp. 1047-1052.
13. X. Yuan, Y. Hu, M. Li, Z. Chang, and A. Schmeink, “Optimal Design for UAV-Assisted Energy Constrained Communication: Joint Power Control and Continuous Trajectory Design,” ICC 2022 - IEEE International Conference on Communications, 2022, pp. 43-48.
14. X. Yuan, Y. Zhu, H. Jiang, Y. Hu, and A. Schmeink, “Data Freshness Optimization in Relaying Network Operating with Finite Blocklength Codes,” 2021 IEEE Global Communications Conference (GLOBECOM), 2021, pp. 1-6.
15. X. Yuan, Y. Zhu, Y. Hu, D. Li and A. Schmeink, “Relaying-Assisted Multiuser Networks in FBL Regime: Achievable Reliability-Constrained Throughput,” 2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021, pp. 1-6.
16. X. Yuan, Y. Hu, J. Gross and A. Schmeink, “Simultaneous Wireless Information and Power Transfer in Low-Latency Relaying Networks with Nonlinear Energy Harvesting,” 2021 IEEE Statistical Signal Processing Workshop (SSP), invited paper, 2021, pp. 281-285.
17. X. Yuan, Y. Hu, J. Gross and A. Schmeink, “Radio-Map-Based UAV Placement Design for UAV-Assisted Relaying Networks,” 2021 IEEE Statistical Signal Processing Workshop (SSP), invited paper, 2021, pp. 286-290.
18. X. Yuan, Y. Hu and A. Schmeink, “Joint Design of UAV Trajectory and Directional Antenna Orientation in UAV-Enabled WPT Networks,” 2021 IEEE International Conference on Communications Workshops (ICC Workshops), 2021, pp. 1-6.
19. H. Zhang, Y. Hu, X. Yuan and A. Schmeink, “Semantic Feature Compression and Adaption for Latency-Sensitive Semantic Communication,” 2024 IEEE Global Communications Conference Workshops (Globecom Workshops), accepted, 2024.
20. Y. Huang, Y. Hu, X. Yuan, M. Liu and A. Schmeink, “Analytical Optimal Joint Resource Allocation and Continuous Trajectory Design for UAV-Assisted Covert Communications,” GLOBECOM 2024 - 2024 IEEE Global Communications Conference, accepted.
21. P. Wu, X. Yuan, Y. Zhang and Q. Song, “Trajectory and User Scheduling Design for UAV Semantic Communication in PLoS Channels,” 2024 19th International Symposium on Wireless Communication Systems (ISWCS), Rio de Janeiro, Brazil, 2024, pp. 1-6.
22. N. Guo, X. Yuan, B. Li, Q. He and A. Schmeink, “IRS Deployment in Wireless Powered Communication Network with Nonlinear Energy Harvesting,” 2024 19th International Symposium on Wireless Communication Systems (ISWCS), Rio de Janeiro, Brazil, 2024, pp. 1-6.
23. X. Wang, P. Wu, X. Yuan, Y. Hu and Y. Zhang, “Joint Trajectory and User Scheduling Design for UAV-Assisted Secure Communication,” 2024 19th International Symposium on Wireless Communication Systems (ISWCS), Rio de Janeiro, Brazil, 2024, pp. 1-6.
24. N. Guo, X. Yuan, Y. Hu, B. Ai, A. Schmeink, “Multi-Source WPT Enabled IoNT: Joint Resource Allocation for Fairness-Aware Reliability Maximization in the FBL Regime,” 2024 IEEE Wireless Communications and Networking Conference (WCNC), Dubai, United Arab Emirates, 2024, pp. 01-06.
25. Z. Bao, W. Gao, X. Yuan, Y. Hu, A. Schmeink, “Timeliness Analysis of CSMA/CA with Truncated HARQ in the Finite Blocklength Regime,” 2024 IEEE Wireless Communications and Networking Conference (WCNC), Dubai, United Arab Emirates, 2024, pp. 1-6.
26. P. Wu, X. Yuan, Y. Hu, J. Zhang and A. Schmeink, “Joint User Assignment and Trajectory Design for UAV-Enabled Covert Communication with Directional Antenna,” GLOBECOM 2023 - 2023 IEEE Global Communications Conference, Kuala Lumpur, Malaysia, 2023, pp. 7297-7302.
27. Y. Zhu, X. Yuan, Y. Hu and A. Schmeink, “Semantic Reliability Maximization: A Cooperative Perspective in Integrated Sensing, Communication and Computation Networks,” GLOBECOM 2023 - 2023 IEEE Global Communications Conference, Kuala Lumpur, Malaysia, 2023, pp. 5073-5079.
28. P. Wu, X. Yuan, Y. Hu and A. Schmeink, “Trajectory and User Assignment Design for UAV-Assisted Wireless Communications under Rician Fading Channels,” 2023 IEEE/CIC International Conference on Communications in China (ICCC), Dalian, China, 2023, pp. 1-6.
29. Y. Zhu, X. Yuan, Y. Hu, R. F. Schaefer and A. Schmeink, “How to Trade Reliability for Security in Machine-Type Communications: Leakage-Failure Probability Minimization,” ICC 2023 - IEEE International Conference on Communications, Rome, Italy, 2023, pp. 4353-4359.
30. P. Wu, X. Yuan, Y. Hu, H. Chen and A. Schmeink, “Joint Transmit Power and Trajectory Design for UAV-Enabled Covert Communication,” 2023 IEEE Wireless Communications and Networking Conference (WCNC), Glasgow, United Kingdom, 2023, pp. 1-6.
31. N. Guo, X. Yuan, C. Wang, Y. Hu, A. Schmeink, “Reliability-Oriented Power Allocation for Multi-Source WPT Enabled Short Packet Communications,” 2022 18th International Symposium on Wireless Communication Systems (ISWCS), Hangzhou, China, 2022, pp. 1-6.
32. N. Guo, X. Yuan, Y. Hu, and A. Schmeink, “SWIPT-Enabled Multi-User Cooperative Communication with Nonlinear Energy Harvesting,” WSA 2021; 25th International ITG Workshop on Smart Antennas, invited paper, 2021, pp. 1-6.
33. Q. He, T. Lan, J. Li, X. Yuan and Y. Hu, “A Wireless Relay Assisted LPWAN for Condition Monitoring of Converter Stations,” 2021 IEEE 6th International Conference on Signal and Image Processing (ICSIP), Nanjing, China, 2021, pp. 898-902.
34. Y. Zhu, X. Yuan, Y. Hu, Q. Chen and A. Schmeink, “Error Probability Minimization of Multi-hop Relaying System in the Finite Blocklength Regime,” 2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021, pp. 1-6.
35. Y. Zhu, X. Yuan, B. Han, Y. Hu and A. Schmeink, “Average Age-of-Information Minimization in EH-enabled Low-Latency IoT Networks,” ICC 2021 - IEEE International Conference on Communications, 2021, pp. 1-6.
36. T. Yang, Y. Hu, X. Yuan and R. Mathar, “Genetic Algorithm based UAV Trajectory Design in Wireless Power Transfer Systems,” 2019 IEEE Wireless Communications and Networking Conference (WCNC), 2019, pp. 1-6.