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DONGFANG
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Dongfang Xu

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.

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News

  • 03/2025, one paper has been accepted to IEEE Transactions on Information Theory (TIT).

  • 01/2025, one paper has been accepted to IEEE Journal of Selected Topics in Signal Processing (JSTSP).

  • 01/2025, one paper has been submitted to IEEE International Symposium on Information Theory (ISIT).

  • 12/2024, one paper has been accepted to IEEE Transactions on Wireless Communications (TWC).

  • 11/2024, I serve as an Editor of IEEE Transactions on Mobile Computing (TMC).

  • 11/2024, one paper has been accepted to IEEE Transactions on Wireless Communications (TWC).

  • 10/2024, one paper has been submitted to IEEE Transactions on Communications (TCOM).

  • 10/2024, one paper has been submitted to IEEE Transactions on Information Forensics & Security (TIFS).

  • 09/2024, one paper has been submitted to IEEE Transactions on Wireless Communications (TWC).

  • 09/2024, I have been ranked among 2023 World's Top 2% Scientists by Stanford University. Link

  • 09/2024, one paper has been accepted to IEEE Transactions on Wireless Communications (TWC).

  • 08/2024, one paper has been accepted to IEEE Global Communication Conference (GLOBECOM).

  • 07/2024, one paper has been accepted to Proceedings of the IEEE. Paper

  • 06/2024, one paper has been accepted to Proceedings of the IEEE. Paper

  • 02/2024, one paper has been accepted to IEEE Communications Magazine. Code

  • 12/2023, one paper has been accepted by IEEE Wireless Communications and Networking Conference (WCNC).

  • 12/2023, I was listed as one of the exemplary reviewers of IEEE Communications Letters. Announcement | Certificate

  • 10/2023, I have been ranked among 2022 World's Top 2% Scientists by Stanford University. Link

  • 10/2023, I join the editorial board of IEEE Communications Letters.

  • 09/2023, my first 100-papers-review in IEEE TCOM (from Jul. 2019 to Sept. 2023). Screenshot

  • 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, I was listed as one of the exemplary reviewers of IEEE Transactions on Communications (TCOM) for three consecutive years (2020–2022). Announcement | Certificate

  • 01/2023, I join HKUST as a postdoctoral fellow.

    • Publications

    Journal Papers:

    1. Fundamental limits of two-hop MIMO channels: An asymptotic approach
      Zeyan Zhuang, Xin Zhang, Dongfang Xu, Shenghui Song
      IEEE Trans. Inf. Theory, Mar. 2025. | Paper

    2. Decentralized MIMO systems with imperfect CSI using LMMSE receivers
      Zeyan Zhuang, Xin Zhang, Dongfang Xu, Shenghui Song, Yonina C. Eldar
      IEEE J. Sel. Top. Signal Process., Special Issue on Distributed Signal Processing for Extremely Large-Scale Antenna Array Systems, Feb. 2025. | Paper

    3. Sensing-assisted robust SWIPT for mobile energy harvesting receivers in networked ISAC systems
      Yiming Xu, Dongfang Xu*, Shenghui Song
      IEEE Trans. Wireless Commun., Dec. 2024. | Paper

    4. 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., vol. 24, no. 2, pp. 1306-1324, Feb. 2025. | Paper

    5. 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

    6. 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

    7. 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

    8. 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

    9. 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

    10. 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

    11. 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

    12. 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

    13. 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

    14. 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

    15. 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

    16. 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

    17. 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

    18. 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:

    1. Finite blocklength analysis for optical fiber MIMO channels
      Xin Zhang, Dongfang Xu, Xianghao Yu, Shenghui Song, Mérouane Debbah
      in Proc. IEEE Global Commun. Conf. (GLOBECOM), Cape Town, South Africa, Dec. 2024. | Paper

    2. IRS-aided secure communications with linear precoding: Performance analysis and system design
      Xin Zhang, Dongfang Xu, Shenghui Song
      in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper

    3. Movable antenna-enhanced multiuser communication: Jointly optimal discrete antenna positioning and beamforming
      Yifei Wu, Dongfang Xu, Derrick Wing Kwan Ng, Robert Schober, Wolfgang Gerstacker
      in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper

    4. Joint BS selection, user association, and beamforming design for network integrated sensing and communication
      Yiming Xu, Dongfang Xu, Lei Xie, Shenghui Song
      in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper

    5. Energy-aware resource allocation and trajectory design for UAV-enabled ISAC
      Ata Khalili, Atefeh Rezaei, Dongfang Xu, Robert Schober
      in Proc. IEEE Global Commun. Conf. (GLOBECOM), Kuala Lumpur, Malaysia, Dec. 2023. | Paper

    6. Fundamental limits and base station selection for collaborative sensing in perceptive mobile network
      Yiming Xu, Dongfang Xu, Lei Xie, Shenghui Song
      in Proc. IEEE Int. Mediterr. Conf. Commun. and Netw. (MeditCom), Dubrovnik, Croatia, Sept. 2023. | Paper

    7. Multi-objective optimization for active IRS-assisted communication systems
      Dongfang Xu, Xianghao Yu, Shenghui Song, Derrick Wing Kwan Ng, Robert Schober
      in Proc. IEEE Int. Mediterr. Conf. Commun. and Netw. (MeditCom), Dubrovnik, Croatia, Sept. 2023. | Paper

    8. 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). | Paper CoA

    9. 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). | Paper CoA

    10. 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

    11. 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

    12. 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). | Paper CoA

    13. 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

    14. 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

    15. 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

    16. 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

    17. 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

    18. 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

    19. 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

    20. 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

    21. 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

  • IEEE GLOBECOM 2019 Best Paper Award | Plaque

  • Passed with Distinction (M.Sc.), FAU, Sept. 2017 | Certificate

  • 2014 Outstanding Bachelor's Thesis, Shandong University, Jun. 2014

  • 2010 Shandong Province Merit Student (1‰)

  • 2009 China High School Biology Olympiad, Second Prize

  • 2006 China National Biology Olympiad Shandong Division, First Prize

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