I am currently a research assistant professor at the Hong Kong University of Science and Technology (HKUST). Prior to that, I was a postdoctoral fellow at HKUST from Jan. 2023 to Oct. 2023. In Dec. 2022, I received my Ph.D. degree (with distinction) in electrical engineering from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany, under the supervision of Prof. Robert Schober. Previously, I received my M.Sc. degree (grade 1.2, with distinction) in communications and multimedia engineering from FAU in Sept. 2017 and my B.Eng. degree in communication engineering from Shandong University, Jinan, China, in Jul. 2014, respectively.
09/2023, my first 100-papers-review in IEEE TCOM (from Jul. 2019 to Sept. 2023). Screenshot
09/2023, four papers have been accepted by IEEE Global Communication Conference (GLOBECOM).
07/2023, two papers have been accepted by IEEE International Mediterranean Conference on Communications and Networking (MeditCom).
06/2023, we are invited to submit a paper to IEEE International Symposium on Modeling and Optimization in Mobile, Ad hoc, and Wireless Networks (WiOpt).
05/2023, our paper on robust optimization framework design for active RIS-aided communication has been accepted by IEEE Transactions on Wireless Communications (TWC).
04/2023, we are invited to submit a paper to IEEE Statistical Signal Processing Workshop (SSP).
04/2023, our paper on IRS-enabled robust and secure communication systems design has been awarded as IEEE Communications Society Leonard G. Abraham Prize. Announcement|Plaque
03/2023, two papers have been accepted by IEEE International Conference on Communications (ICC).
03/2023, I was listed as one of the exemplary reviewers of IEEE Transactions on Communications (TCOM) for three consecutive years (2020–2022). Announcement|Certificate
02/2023, Prof. Schober, Prof. Ng, and I are invited to contribute a chapter to a book to be published at Wiley.
01/2023, I join HKUST as a postdoctoral fellow.
Publications
Journal Papers:
Globally optimal resource allocation design for discrete phase shift IRS-assisted multiuser networks with perfect and imperfect CSI
Yifei Wu, Dongfang Xu*, Derrick Wing Kwan Ng, Wolfgang Gerstacker, Robert Schober
IEEE Trans. Wireless Commun., Dec. 2024. | Paper
Efficient UAV hovering, resource allocation, and trajectory design for ISAC with limited backhaul capacity
Ata Khalili, Atefeh Rezaei, Dongfang Xu, Falko Dressler, Robert Schober
IEEE Trans. Wireless Commun., vol. 23, no. 11, pp. 17635-17650, Nov. 2024. | Paper
Interference mitigation for network-level ISAC: An optimization perspective Dongfang Xu, Yiming Xu, Xin Zhang, Xianghao Yu, Shenghui Song, Robert Schober
IEEE Commun. Mag., vol. 62, no. 9, pp. 28-34, Sept. 2024. | Paper
Resource allocation design for next-generation multiple access: A tutorial overview
Zhiqiang Wei, Dongfang Xu*, Shuangyang Li*, Shenghui Song, Derrick Wing Kwan Ng, Giuseppe Caire
Proc. IEEE, vol. 112, no. 9, pp. 1230-1263, Sept. 2024. | Paper
Wireless information and energy transfer in the era of 6G communications
Constantinos Psomas, Konstantinos Ntougias, Nikita Shanin, Dongfang Xu, Kenneth Mayer, Nguyen Minh Tran, Laura Cottatellucci, Kae Won Choi, Dong In Kim, Robert Schober, Ioannis Krikidis
Proc. IEEE, vol. 112, no. 7, pp. 764-804, Jul. 2024. | Paper
A framework for transmission design for active RIS-aided communication with partial CSI
Gui Zhou, Cunhua Pan, Hong Ren, Dongfang Xu, Zaichen Zhang, Jiangzhou Wang, Robert Schober
IEEE Trans. Wireless Commun., vol. 23, no. 1, pp. 305-320, Jan. 2024. | Paper
Robust and secure resource allocation for ISAC systems: A novel optimization framework for variable-length snapshots Dongfang Xu, Xianghao Yu, Derrick Wing Kwan Ng, Anke Schmeink, Robert Schober
IEEE Trans. Commun., vol. 70, no. 12, pp. 8196-8214, Dec. 2022. | Paper
Hybrid NOMA offloading in multi-user MEC networks
Zhiguo Ding, Dongfang Xu, Robert Schober, H. Vincent Poor
IEEE Trans. Wireless Commun., vol. 21, no. 7, pp. 5377-5391, Jul. 2022. | Paper
Optimal resource allocation design for large IRS-assisted SWIPT systems: A scalable optimization framework Dongfang Xu, Vahid Jamali, Xianghao Yu, Derrick Wing Kwan Ng, Robert Schober
IEEE Trans. Commun., vol. 70, no. 2, pp. 1423-1441, Feb. 2022. | Paper
Smart and reconfigurable wireless communications: From IRS modeling to algorithm design
Xianghao Yu, Vahid Jamali, Dongfang Xu, Derrick Wing Kwan Ng, Robert Schober
IEEE Wireless Commun., vol. 28, no. 6, pp. 118-125, Dec. 2021. | Paper
IRS-assisted green communication systems: provable convergence and robust optimization
Xianghao Yu, Dongfang Xu*, Derrick Wing Kwan Ng, Robert Schober
IEEE Trans. Commun., vol. 69, no. 9, pp. 6313-6329, Sept. 2021. | Paper
Resource allocation for IRS-assisted full-duplex cognitive radio systems Dongfang Xu, Xianghao Yu, Yan Sun, Derrick Wing Kwan Ng, Robert Schober
IEEE Trans. Commun., vol. 68, no. 12, pp. 7376-7394, Dec. 2020. | Paper
Robust and secure wireless communications via intelligent reflecting surfaces
Xianghao Yu, Dongfang Xu*, Ying Sun, Derrick Wing Kwan Ng, Robert Schober
IEEE J. Sel. Areas Commun., Special Issue on Wireless Networks Empowered by Reconfigurable Intelligent Surfaces, vol. 38, no. 11, pp. 2637-2652, Nov. 2020 (2023 IEEE Communications Society Leonard G. Abraham Prize). | Paper
Multiuser MISO UAV communications in uncertain environments with no-fly zones: robust trajectory and resource allocation design Dongfang Xu, Yan Sun, Derrick Wing Kwan Ng, Robert Schober
IEEE Trans. Commun., vol. 68, no. 5, pp. 3153-3172, May 2020. | Paper
Optimal 3D-trajectory design and resource allocation for solar-powered UAV communication systems
Yan Sun, Dongfang Xu, Derrick Wing Kwan Ng, Linglong Dai, Robert Schober
IEEE Trans. Commun., vol. 67, no. 6, pp. 4281-4298, Jun. 2019 (2022 IEEE Communications Society Stephen O. Rice Prize). | Paper
Conference Papers:
Movable antenna-enhanced multiuser communication: Jointly optimal discrete antenna positioning and beamforming
Yifei Wu, Dongfang Xu, Derrick Wing Kwan Ng, Robert Schober, and Wolfgang Gerstacker
in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper
Joint BS selection, user association, and beamforming design for network integrated sensing and communication
Yiming Xu, Dongfang Xu, Lei Xie, and Shenghui Song
in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper
Energy-aware resource allocation and trajectory design for UAV-enabled ISAC
Ata Khalili, Atefeh Rezaei, Dongfang Xu, and Robert Schober
in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper
Fundamental limits and base station selection for collaborative sensing in perceptive mobile network
Yiming Xu, Dongfang Xu, Lei Xie, and Shenghui Song
in Proc. IEEE Int. Mediterr. Conf. Commun. and Netw. (MeditCom), Dubrovnik, Croatia, Sept. 2023. | Paper
Multi-objective optimization for active IRS-assisted communication systems Dongfang Xu, Xianghao Yu, Shenghui Song, Derrick Wing Kwan Ng, and Robert Schober
in Proc. IEEE Int. Mediterr. Conf. Commun. and Netw. (MeditCom), Dubrovnik, Croatia, Sept. 2023. | Paper
Sensing-enhanced secure communication: Joint time allocation and beamforming design Dongfang Xu, Yiming Xu, Zhiqiang Wei, Shenghui Song, Derrick Wing Kwan Ng
in Proc. IEEE Int. Symp. Model. Optim. Mob., Ad hoc, Wireless Netw. (WiOpt), Singapore, Aug. 2023 (Invited Paper). | PaperCoA
Integrated sensing and communication in coordinated cellular networks Dongfang Xu, Chang Liu, Shenghui Song, Derrick Wing Kwan Ng
in Proc. IEEE Stat. Signal Process. Wkshps. (SSP), Hanoi, Vietnam, Jul. 2023 (Invited Paper). | PaperCoA
Integrated sensing and communication in distributed antenna networks Dongfang Xu, Ata Khalili, Xianghao Yu, Derrick Wing Kwan Ng, Robert Schober
in Proc. IEEE Int. Conf. Commun. (ICC), Rome, Italy, May 2023. | Paper
Globally optimal resource allocation design for IRS-assisted multiuser networks with discrete phase shifts
Yifei Wu, Dongfang Xu, Derrick Wing Kwan Ng, Robert Schober, Wolfgang Gerstacker
in Proc. IEEE Int. Conf. Commun. (ICC), Rome, Italy, May 2023. | Paper
Resource allocation for active IRS-assisted multiuser communication systems Dongfang Xu, Xianghao Yu, Derrick Wing Kwan Ng, Robert Schober
in Proc. Asilomar Conf. Signals, Systems, and Computers, Pacific Grove, CA, USA, Oct. 2021 (Invited Paper). | PaperCoA
Resource allocation for large IRS-assisted SWIPT systems with non-linear energy harvesting model Dongfang Xu, Xianghao Yu, Vahid Jamali, Derrick Wing Kwan Ng, Robert Schober
in Proc. IEEE Wireless Commun. Netw. Conf. (WCNC), Nanjing, China, Mar. 2021. | Paper
Power-efficient resource allocation for multiuser MISO systems via intelligent reflecting surfaces
Xianghao Yu, Dongfang Xu, Derrick Wing Kwan Ng, Robert Schober
in Proc. IEEE Global Commun. Conf. (GLOBECOM), Taipei, Taiwan, Dec. 2020. | Paper
Resource allocation for intelligent reflecting surface-assisted cognitive radio networks Dongfang Xu, Xianghao Yu, Robert Schober
in Proc. IEEE Int. Wkshps. Signal Process. Adv. Wireless Commun. (SPAWC), Atlanta, GA, USA, May 2020 (Invited Paper). | Paper
Optimal beamforming for MISO communications via intelligent reflecting surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
in Proc. IEEE Int. Wkshps. Signal Process. Adv. Wireless Commun. (SPAWC), Atlanta, GA, USA, May 2020 (Invited Paper). | Paper
Enabling secure wireless communications via intelligent reflecting surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
in Proc. IEEE Global Commun. Conf. (GLOBECOM), Waikoloa, HI, USA, Dec. 2019 (Best Paper). | Paper
Resource allocation for secure IRS-assisted multiuser MISO systems Dongfang Xu, Xianghao Yu, Yan Sun, Derrick Wing Kwan Ng, Robert Schober
in Proc. Global Commun. Conf. (GLOBECOM), Waikoloa, HI, USA, Dec. 2019. | Paper
MISO wireless communication systems via intelligent reflecting surfaces
Xianghao Yu, Dongfang Xu, Robert Schober
in Proc. IEEE/CIC Int. Conf. Commun. in China (ICCC), Changchun, China, Aug. 2019 (Invited Paper). | Paper
Robust resource allocation for UAV systems with UAV jittering and user location uncertainty Dongfang Xu, Yan Sun, Derrick Wing Kwan Ng, Robert Schober
in Proc. Global Commun. Conf. (GLOBECOM), Abu Dhabi, United Arab Emirates, Dec. 2018. | Paper
Resource allocation for solar powered UAV communication systems
Yan Sun, Derrick Wing Kwan Ng, Dongfang Xu, Linglong Dai, Robert Schober
in Proc. IEEE Int. Wkshps. Signal Process. Adv. Wireless Commun. (SPAWC), Kalamata, Greece, Jun. 2018 (Invited Paper). | Paper
Professional Activities
Session Chair of IEEE Globecom 2023 Wireless Communication Symposium.
Technical Program Committee Members of
2023 International Symposium on Electrical and Electronics Engineering (ISEE)
2023 IEEE Vehicular Technology Conference Fall on Signal Transmission and Reception
2023 IEEE Vehicular Technology Conference Fall on Radio Access Technology and Heterogeneous Networks
2023 IEEE Global Communications Conference: Selected Areas in Communications: Integrated Sensing and Communication (ISAC)
2023 IEEE International Conference on Communications Workshop (ICC Wkshp) on Integrated Sensing and Communication (ISAC)
2023 IEEE International Conference on Communications (ICC) - IoT and Sensor Networks (IoTSN) Symposium
Journal Reviewer of IEEE Trans. Wireless Commun., IEEE Trans. Commun., IEEE J. Sel. Areas Commun., IEEE Trans. Signal Process., IEEE Trans. Veh. Technol., IEEE Commun. Lett., IEEE Wirel. Commun. Lett., etc.
Miscellaneous
Master Thesis Supervisions:
Deep learning-aided resource allocation for wireless communication systems,
Taoyu Yang, 2019.06--2019.12, Grade: 1.7. Announcement | Thesis
Multi-objective optimization for power efficient active IRS-assisted communication system,
Dawei Shao, 2021.10--2022.03, Grade: 1.3. Announcement | Thesis
Internship Project Supervisions:
Resource allocation and trajectory design for secure UAV communication in the presence of no-fly zones,
Tailai Huang, 2020.01--2020.07, Passed. Announcement
Resource allocation design for simultaneously transmitting and reflecting (STAR)-IRS assisted communication systems,
Dawei Shao, 2022.05--2022.10, Passed. Announcement
My Theses:
Optimized resource allocation for future wireless communication systems,
Dongfang Xu, 2022.12.20, Grade: 1.0. Slides | Thesis
Optimal resource allocation for secure wireless communication systems,
Dongfang Xu, 2017.03--2017.09, Grade: 1.0. Announcement | Thesis
Selected Awards and Honors
2023 Exemplary Reviewer of IEEE Communications Letters | Certificate
2023 IEEE Communications Society Leonard G. Abraham Prize | Plaque
2022 World's Top 2% Scientists by Stanford University for citation impact | List
Passed with Distinction (Dr.-Ing.), FAU, Dec. 2022 | Certificate
2022 Exemplary Reviewer of IEEE Transactions on Communications | Certificate
2022 IEEE Communications Society Stephen O. Rice Prize | Plaque
2021 World's Top 2% Scientists by Stanford University for citation impact | List
2021 Exemplary Reviewer of IEEE Transactions on Communications | Certificate
2021 FAU Laboratoriums für Nachrichtentechnik "Goldener Igel" Publikationspreis | Trophy
2020 Exemplary Reviewer of IEEE Transactions on Communications | Certificate