Biography

I am currently an Associate Professor with the School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen. I was a Postdoctoral Research Fellow at the Singapore University of Technology and Design (SUTD), and a Research Fellow at the National University of Singapore. I was a Professor with the School of Information Engineering, Guangdong University of Technology, Guangzhou, China. I received the B.E. and Ph.D. degrees in the Department of Electronic Engineering and Information Science from the University of Science and Technology of China (USTC). My research interests include wireless communications, wireless power transfer, mobile-edge computing and machine learning.

 

I am currently serving as an Associate Editor for the IEEE Access, an Editor for the IEEE Wireless Communications Letters, an Editor for the Journal of Communications and Information Networks, and a Guest Editor for the IEEE Wireless Communications. I have served as the Symposium co-chair for IEEE Globecom 2019 “Wireless Communications” Symposium, the Tutorial co-chair for IEEE/CIC ICCC 2019, and Workshop co-chair for four workshops in IEEE ICC 2018 and 2019, IEEE/CIC ICCC 2018, and APCC 2017. I was a recipient of the 2019 IEEE Communications Society Asia-Pacific Outstanding Young Researcher Award, the 2019 IEEE Wireless Communications Technical Committee Outstanding Young Researcher Award, the IEEE Signal Processing Society Young Author Best Paper Award in 2017, and the IEEE/CIC ICCC 2019 Best Paper Award. 


My Google Scholar citation profile can be found here.


More information can also be found in my Google site

Research
Awards and Honors
  • 2019
  • 2017
<
  • 01

    2019

    2019 IEEE Wireless Communications Technical Committee Outstanding Young Researcher Award

  • 02

    2019

    2019 IEEE Communications Society Asia-Pacific Outstanding Young Researcher Award

  • 03

    2019

    IEEE/CIC ICCC 2019 Best Paper Award

  • 04

    2017

    2017 IEEE Signal Processing Society Young Author Best Paper Award

>
Academic Publications

Book

1.     C. Huang, S. Zhou, J. Xu, Z. Niu, R. Zhang, and S. Cui, Energy Harvesting Wireless Communications, Wiley, 2019.  (Order this book at https://www.amazon.co.uk/Energy-Harvesting-Wireless-Communications-Wiley/dp/1119295947)


Book Chapter

1.     J. Xu, L. Duan, and R. Zhang, “Cost-aware cellular networks powered by smart grid and energy harvesting,” in the chapter of Emerging Technologies for 5G Wireless Systems, Cambridge University Press, 2017.

2.     L. Liu, J. Xu, and R. Zhang, “Transmit beamforming for simultaneous wireless information and energy transfer,” in the chapter of Library in Signal Processing, New York: Academic Press, 2017.

3.     J. Xu and R. Zhang, “Multi-antenna energy beamforming for SWIPT,” in the chapter of Wireless Information and Power Transfer: Theory and Practice, Wiley, 2018.

4.     F. Wang, J. Xu, X. Wang, and S. Cui, "Wireless powered mobile edge computing systems," in the chapter of Wireless Information and Power Transfer: Theory and Practice, Wiley, 2018.

5.     J. Xu, Y. Zeng, and R. Zhang, "UAV-enabled wireless power transfer," in the chapter of UAV Communications for 5G and Beyond, Wiley, 2019.


Editorial

1.     J. Xu, B. Clerckx, Z. Ding, X. Wang, and Y. Zeng, "IEEE ACCESS special section editorial: Energy efficient wireless communications with energy harvesting and wireless power transfer," IEEE Access, vol. 6, no. 1, pp. 72041-72045, Nov. 2018.

2.     Y. Zeng, M. Debbah, D. Gesbert, I. Guvenc, S. Jin, and J. Xu, "Guest editorial: Integrating UAVs into 5G and beyond," IEEE Wireless Communications, vol. 26, no.1, pp. 10-11, Feb. 2019.


Journal Paper

1.     X. Mo and J. Xu, "Energy-efficient federated edge learning with joint communication and computation design," submitted to IEEE Transactions on Communications

2.     H. Xie, J. Xu, and Y.-F. Liu, "Max-min fairness in IRS-aided multi-cell MISO systems with joint transmit and reflective beamforming," submitted to IEEE Transactions on Wireless Communications

3.     X. Cai, X. Mo, J. Chen, and J. Xu, "D2D-enabled data sharing for distributed machine learning at wireless network edge," submitted to IEEE Wireless Communications Letters

4.     J. Yao and J. Xu, "Joint 3D maneuver and power adaptation for secure UAV communication with CoMP reception," submitted to IEEE Transactions on Wireless Communications

5.     F. Wang, H. Xing, and J. Xu, "Real-time resource allocation for wireless powered multiuser mobile edge computing with energy and task causality," submitted to IEEE Transactions on Communications.

6.     X. Cao, G. Zhu, J. Xu, and K. Huang, "Optimal power control for over-the-air computation in fading channels," submitted to IEEE Transactions on Wireless Communications (available online at https://arxiv.org/pdf/1906.06858.pdf)

7.     L. Xie, J. Xu, and Y. Zeng, "Common throughput maximization for UAV-enabled interference channel with wireless powered communications," to appear in IEEE Transactions on Communications.

8.     F. Wang, J. Xu, and S. Cui, "Optimal energy allocation and task offloading policy for wireless powered mobile edge computing systems," to appear in IEEE Transactions on Wireless Communications.  (available online at https://arxiv.org/pdf/1907.07565.pdf)

9.     D. Wu, F. Wang, X. Cao, and J. Xu, "Joint communication and computation optimization for wireless powered mobile edge computing with D2D offloading," to appear in Journal of Communications and Information Networks. (available online at https://arxiv.org/pdf/1910.14274.pdf)

10.  X. Mo, Y. Huang, and J. Xu, "Radio-map-based robust positioning optimization for UAV-enabled wireless power transfer," to appear in IEEE Wireless Communications Letters. (available online at https://arxiv.org/pdf/1905.12394.pdf)

11.  P. Li and J. Xu, "Fundamental rate limits of UAV-enabled multiple access channel with trajectory optimization," to appear in IEEE Transactions on Wireless Communications. (available online at https://arxiv.org/abs/1904.08305)

12.  J. Yao and J. Xu, "Secrecy transmission in large-scale UAV-enabled wireless networks," to appear in IEEE Transactions on Communications. (available online at https://arxiv.org/abs/1902.00836)

13.  Q. Lin, F. Wang, and J. Xu, "Optimal task offloading scheduling for energy efficient D2D cooperative computing," IEEE Communications Letters, vol. 23, no. 10, pp. 1816-1820, Oct. 2019.

14.  X. Li and J. Xu, "Positioning optimization for sum-rate maximization in UAV-enabled interference channel," IEEE Signal Processing Letters, vol. 26, no.10, pp. 1466-1470, Oct. 2019.

15.  Y. Huang, W. Mei, J. Xu, L. Qiu, and R. Zhang, "Cognitive UAV communication via joint maneuver and power control," to appear in IEEE Transactions on Communications. (available online at https://arxiv.org/pdf/1901.02804.pdf)

16.  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.

17.  J. Zhang, Y. Pan, and J. Xu, "Compressive sensing for joint user activity and data detection in grant-free NOMA," IEEE Wireless Communications Letters, vol. 8, no. 3, pp. 857-860, Jun. 2019.

18.  T. Feng, G. Ma, and J. Xu, "Cognitive wireless power transfer in the presence of reactive primary communication user," IEEE Transactions on Cognitive Communications and Networking, vol. 5, no. 2, pp. 370-381, Jun. 2019.

19.  H. Xing, L. Liu, J. Xu, and A. Nallanathan, "Joint task assignment and resource allocation for D2D-enabled mobile-edge computing," IEEE Transactions on Communications, vol. 67, no. 6, pp. 4193-4207, Jun. 2019.

20.  Z. Ding, J. Xu, O. A. Dobre, and H. V. Poor, "Joint power and time allocation for NOMA-MEC offloading," IEEE Transactions on Vehicular Technology, vol. 68, no. 6, pp. 6207-6211, Jun. 2019.

21.  X. Cao, F. Wang, J. Xu, R. Zhang, and S. Cui, "Joint computation and communication cooperation for energy-efficient mobile edge computing," IEEE Internet of Things Journal, vol. 6, no. 3, pp. 4188-4200, Jun. 2019.

22.  L. Xie, J. Xu, and R. Zhang, “Throughput maximization for UAV-enabled wireless powered communication networks”, IEEE Internet of Things Journal, vol. 6, no. 2, pp. 1690-1703, Apr. 2019. (available online at https://arxiv.org/abs/1801.04545)

23.  Y. Zeng, J. Xu, and R. Zhang, “Energy minimization for wireless communication with rotary-wing UAV”, IEEE Transactions on Wireless Communications, vol. 18, no. 4, pp. 2329-2345, Apr. 2019. (available online at https://arxiv.org/abs/1804.02238) [ESI Highly Cited Paper] (data from Web of Science on November 2019)

24.  F. Wang, J. Xu, and Z. Ding, "Multi-antenna NOMA for computation offloading in multiuser mobile edge computing systems," IEEE Transactions on Communications, vol. 67, no. 3, pp. 2450-2463, Mar. 2019. (available online at https://arxiv.org/abs/1707.02486)

25.  C. Zhong, J. Yao, and J. Xu, "Secure UAV communication with cooperative jamming and trajectory control," IEEE Communications Letters, vol. 23, no. 2, pp. 286-289, Feb. 2019. 

26.  J. Xu and J. Yao, "Exploiting physical-layer security for multiuser multicarrier computation offloading," IEEE Wireless Communications Letters, vol. 8, no.1, pp. 9-12, Feb. 2019. (available online at https://arxiv.org/abs/1805.02322)

27.  G. Ma, J. Xu, Y. Zeng, and M. R. V. Moghadam, "A generic receiver architecture for MIMO wireless power transfer with non-linear energy harvesting," IEEE Signal Processing Letters, vol. 26, no. 2, pp. 312-316, Feb. 2019.

28.  P. Li and J. Xu, "Placement optimization for UAV-enabled wireless networks with multi-hop backhauls," Journal of Communications and Information Networks, vol. 3, no. 4, pp. 312-316, Dec. 2018. (invited)

29.  Q. Wu, J. Xu, and R. Zhang, "Capacity characterization of UAV-enabled two-user broadcast channel," IEEE Journal on Selected Areas in Communications (JSAC), vol. 36, no. 9, pp. 1955-1971, Sep. 2018.

30.  J. Xu, Y. Zeng, and R. Zhang, "UAV-enabled wireless power transfer: Trajectory design and energy optimization," IEEE Transactions on Wireless Communications, vol. 17, no. 8, pp. 5092-5106, Aug. 2018. (available online at https://arxiv.org/abs/1709.07590) [ESI Highly Cited Paper] (data from Web of Science on July, 2019) [ESI hot paper] (data from Web of Science on July, 2019)

31.  F. Wang, J. Xu, X. Wang, and S. Cui, "Joint offloading and computing optimization in wireless powered mobile-edge computing systems," IEEE Transactions on Wireless Communications. vol. 17, no. 3, pp. 1784-1797, Mar. 2018. (available online at https://arxiv.org/abs/1702.00606) [ESI Highly Cited Paper] (data from Web of Science on March, 2019) [ESI hot paper] (data from Web of Science on July, 2019)

32.  X. Chen, Q. Shi, L. Yang, and J. Xu, "ThriftyEdge: Resource-efficient edge computing for intelligent IoT applications," IEEE Network, vol. 32, no. 1, pp. 61-65, Jan.-Feb. 2018.

33.  Y. Liu, J. Xu, and R. Zhang, “Exploiting interference for secrecy wireless information and power transfer,'' IEEE Wireless Communications, vol. 25, no. 1 pp. 133-139, Feb. 2018. (available online at https://arxiv.org/abs/1707.07449)

34.  G. Cai, Y. Fang, G. Han, J. Xu, and G. Chen, "Design and analysis of relay-selection strategies for two-way relay network-coded DCSK systems," IEEE Transactions on Vehicular Technology, vol. 67, no. 2, pp. 1258-1271, Feb. 2018.

35.  G. Zhang, J. Xu, Q. Wu, M. Cui, X. Li, and F. Lin, "Wireless powered cooperative jamming for secure OFDM system," IEEE Transactions on Vehicular Technology, vol. 67, no. 2, pp. 1331-1346, Feb. 2018.  (available on-line at http://arxiv.org/abs/1707.07412)  [ESI Highly Cited Paper] (data from Web of Science on June, 2019) 

36.  J. Xu, L. Duan, and R. Zhang, “Transmit optimization for symbol-level spoofing,'' IEEE Transactions on Wireless Communications, vol. 17, no. 1, pp. 41-55, Jan 2018. (available on-line at http://arxiv.org/abs/1608.00722)

37.  Z. Chen, Z. Ding, P. Xu, X. Dai, J. Xu, and D. W. K. Ng, "Comment on “optimal precoding for a QoS optimization problem in two-user MISO-NOMA downlink”," IEEE Communications Letters, vol. 21, no. 9, pp. 2109-2111, Sep. 2017.

38.  J. Xu, L. Duan, and R. Zhang, “Surveillance and intervention of infrastructure-free mobile communications: a new wireless security paradigm,” IEEE Wireless Communications, vol. 24, no. 4, pp. 152-159, Aug. 2017.

39.  X. Ji, J. Xu, Y. Che, Z. Fei, and R. Zhang,  “Adaptive mode switching for cognitive wireless powered communication systems,'' IEEE Wireless Communications Letters, vol. 6, no. 3, pp. 386-389, Jun. 2017.

40.  J. Xu, L. Duan, and R. Zhang, “Proactive eavesdropping via cognitive jamming in fading channels,'' IEEE Transactions on Wireless Communications, vol. 16, no. 5, pp. 2790-2806, May 2017.

41.  J. Xu, L. Duan, and R. Zhang, “Fundamental rate limits of physical layer spoofing,” IEEE Wireless Communications Letters, vol. 6, no. 2, pp. 154-157, Apr. 2017.

42.  J. Xu, Z. Zhong, and B. Ai, “Wireless powered sensor networks: collaborative energy beamforming considering sensing and circuit power consumption," IEEE Wireless Communications Letters, vol. 5, no. 4, pp. 344-347 , Aug. 2016.

43.  J. Xu and R. Zhang, “A general design framework for MIMO wireless energy transfer with limited feedback,” IEEE Transactions on Signal Processing, vol. 64, no. 10, pp. 2475-2488, May 2016.

44.  J. Xu, L. Duan, and R. Zhang, “Energy group-buying with loading sharing for green cellular networks,” IEEE Journal on Selected Areas in Communications (JSAC), vol. 34, no. 4, pp. 786-799, Apr. 2016.

45.  J. Xu and R. Zhang, “Cooperative energy trading in CoMP systems powered by smart grids,” IEEE Transactions on Vehicular Technology, vol. 65, no.4, pp. 2142-2153, Apr. 2016.

46.  J. Xu, L. Duan, and R. Zhang, “Proactive eavesdropping via jamming for rate maximization over Rayleigh fading channels,” IEEE Wireless Communications Letters, vol. 5, no. 1, pp. 80-83, Feb. 2016.

47.  Y. Che, J. Xu, L. Duan, and R. Zhang, “Multi-antenna wireless powered communication with co-channel energy and information transfer," IEEE Communications Letters, vol. 19, no. 12, pp. 2266-2269, Dec. 2015.

48.  S. Luo, J. Xu, T. J. Lim, and R. Zhang, “Capacity region of MISO broadcast channel for simultaneous wireless information and power transfer,” IEEE Transactions on Communications, vol. 63, no. 10, pp. 3856-3868, Oct. 2015. 

49.  X. Han, T. J. Lim, and J. Xu, “Heterogeneous access class barring with QoS guarantee in machine type communications,” Transactions on Emerging Telecommunications Technologies, 2015.

50.  J. Xu, S. Bi, and R. Zhang, “Multiuser MIMO wireless energy transfer with coexisting opportunistic communication,” IEEE Wireless Communications Letters, vol. 4, no. 3, pp. 273-276, Jun. 2015.

51.  J. Xu and R. Zhang, “CoMP meets smart grid: a new communication and energy cooperation paradigm,” IEEE Transactions on Vehicular Technology, vol. 64, no. 6, pp. 2476-2488, Jun. 2015[ESI Highly Cited Paper] (data from Web of Science on November 26, 2017) 

52.  J. Xu, L. Duan, and R. Zhang, “Cost-aware green cellular networks with energy and communication cooperation,” IEEE Communications Magazine, vol. 53, no. 5, pp. 257-263, May 2015. [ESI Highly Cited Paper] (data from Web of Science on September 26, 2016)

53.  H. Li, J. Xu, R. Zhang, and S. Cui, “A general utility optimization framework for energy harvesting based wireless communications,” IEEE Communications Magazine, vol. 53, no. 4, pp. 79-85, Apr. 2015.

54.  K. Rahbar, J. Xu and R. Zhang, “Real-time energy storage management for renewable integration in microgrids: an off-line optimization approach,” IEEE Transactions on Smart Grid, vol. 6, no. 1, pp. 124-134, Jan. 2015. [ESI Highly Cited Paper] (data from Web of Science on November 26, 2017)

55.  Y. Guo, J. Xu, L. Duan, and R. Zhang, “Joint energy and spectrum cooperation for cellular communication systems,” IEEE Transactions on Communications, vol. 62, no. 10, pp. 3678-3690, Oct. 2014.

56.  J. Xu and R. Zhang, “Energy beamforming with one-bit feedback,” IEEE Transactions on Signal Processing, vol. 62, no. 20, pp. 5370-5381, Oct. 2014[ESI Highly Cited Paper] (data from Web of Science on November 26, 2017)

57.  J. Xu, L. Liu, and R. Zhang, “Multiuser MISO beamforming for simultaneous wireless information and power transfer,” IEEE Transactions on Signal Processing, vol. 62, no. 18, pp. 4798-4810, Sep. 2014. [ESI Highly Cited Paper] (data from Web of Science on November 26, 2017) (2017 IEEE Signal Processing Society Young Author Best Paper Award)

58.  J. Xu and R. Zhang, “Throughput optimal policies for energy harvesting wireless transmitters with non-ideal circuit power,” IEEE Journal on Selected Areas in Communications (JSAC), vol. 32, no. 2, pp. 322 - 332, Feb. 2014. [ESI Highly Cited Paper] (data from Web of Science on November 26, 2017)

59.  Z. Zhang, J. Xu, and L. Qiu, “Robust ARQ precoder optimization for AF MIMO relay systems with channel estimation errors,” IEEE Transactions on Wireless Communications, vol. 12, no. 10, pp. 5236 - 5247, Oct. 2013.

60.  J. Xu and L. Qiu, “Energy efficiency optimization for MIMO broadcast channels,” IEEE Transactions on Wireless Communications, vol. 12, no. 2, pp. 690-701, Feb. 2013. [ESI Highly Cited Paper] (data from Web of Science on November 26, 2017)

61.  Z. Zhang, L. Qiu, and J. Xu, “Progressive linear precoder optimization for ARQ packet retransmissions in nonregenerative MIMO relay systems,” IEEE Transactions on Signal Processing, vol. 61, no. 1, pp. 68-81, Jan. 2013.

62.  Y. Jin, J. Xu, and L. Qiu, “Energy-efficient scheduling with individual packet delay constraints and non-ideal circuit power,” Journal of Communications and Networks, vol. 16, no. 1, pp. 36-44, Feb. 2014.

63.  Y. Huang, J. Xu, and L. Qiu, “An energy efficient semi-static power control and link adaptation scheme in UMTS HSDPA,” EURASIP Journal on Wireless Communications and Networking, vol. 2012, no. 1, p. 87, 2012.

64.  J. Xu, L. Qiu, and C. Yu, “Improving energy efficiency through multimode transmission in the downlink MIMO systems,” EURASIP Journal on Wireless Communications and Networking, vol. 2011, no. 1, p. 200, 2011.

65.  J. Xu, S. Li, L. Qiu, B. S. Slimane, and C. Yu, “Energy efficient downlink MIMO transmission with linear precoding,” Science China-Information Sciences, vol. 56, no. 2, pp. 70-81, Feb. 2013.

66.  J. Xu, L. Qiu, and C. Yu, “Improving network energy efficiency through cooperative idling in the multi-cell systems,” EURASIP Journal on Wireless Communications and Networking, vol. 2011, no. 1, p. 165, 2011.

67.  B. Liu, L. Qiu, and J. Xu, “QoS aware energy efficiency analysis in the cellular networks,” IEICE Transactions on Communications, vol. E94-B, no.10, pp. 2925-2928, Oct. 2011.

68.  P. Gong, J. Xu, and L. Qiu, “Zero-forcing dirty paper coding aided physical-layer network coding for MIMO two-way relaying channels with multiple users,” Journal of China Universities of Posts and Telecommunications, vol.18, No.2, pp.53-58, Apr. 2011.

69.  J. Xu and L. Qiu, “A linear processing scheme in multiuser downlink MIMO broadcasting channel with fixed relays,” IEICE Transactions on Communications, vol.E92-B, no.2, pp.679-682, Feb. 2009.


Conference Paper

1.     T. Feng, L. Xie, J. Yao, and J. Xu, "Outage probability minimization for UAV-enabled data collection with distributed beamforming," submitted to IEEE International Conference on Communications (ICC) Workshop, 2020.

2.     H. Xie, J. Xu, and Y.-F. Liu, "Max-min fairness in IRS-aided multi-cell MISO systems via joint transmit and reflective beamforming," IEEE International Conference on Communications (ICC), 2020.

3.     Y. Tang, G. Ma, H. Xie, J. Xu, and X. Han, "Joint transmit and reflective beamforming design for IRS-assisted multiuser MISO SWIPT systems," IEEE International Conference on Communications (ICC), 2020.

4.     Y. Huang, X. Mo, J. Xu, L. Qiu, and Y. Zeng, "Online maneuver design for UAV-enabled NOMA systems via reinforcement learning,'' IEEE Wireless Communications and Networking Conference (WCNC), 2020.

5.     J. Yao, C. Zhong, Z. Liu, and J. Xu, "3D trajectory optimization for secure UAV communication with CoMP reception," IEEE Global Communications Conference (Globecom), 2019.

6.     X. Cao, G. Zhu, J. Xu, and K. Huang, "Optimal power control for over-the-air computation," IEEE Global Communications Conference (Globecom), 2019.

7.     P. Li and J. Xu, "Capacity characterization of UAV-enabled multiple access channel with trajectory optimization," IEEE/CIC International Conference on Communications in China (ICCC), 2019. (Technical report) (IEEE/CIC ICCC 2019 Best Paper Award)

8.     F. Wang, H. Xing, and J. Xu, "Optimal resource allocation for wireless powered mobile edge computing with dynamic task arrivals," IEEE International Conference on Communications (ICC), 2019. 

9.     J. Yao and J. Xu, "Secrecy transmission capacity of large-scale UAV-enabled wireless networks," IEEE International Conference on Communications (ICC) Workshop, 2019.

10.  L. Xie and J. Xu, "Cooperative trajectory design and resource allocation for a two-UAV two-user wireless powered communication system," IEEE International Conference on Communication Systems (IEEE ICCS), 2018 (invited paper).

11.  P. Li and J. Xu, "UAV-enabled cellular networks with multi-hop backhauls: Placement optimization and wireless resource allocation," IEEE International Conference on Communication Systems (IEEE ICCS), 2018 (invited paper).

12.  Q. Kuang, X. Cao, J. Xu, and X. Chen, "Optimal computation and spectrum resource sharing in cooperative mobile edge computing systems," IEEE International Conference on Communication Systems (IEEE ICCS), 2018 (invited paper).

13.  D. Wu, F. Wang, X. Cao, and J. Xu, "Wireless powered user cooperative computation in mobile edge computing systems," IEEE Global Communications Conference (Globecom) Workshop, 2018.

14.  Y. Zeng, J. Xu, and R. Zhang, "Rotary-wing UAV enabled wireless network: Trajectory design and resource allocation," IEEE Global Communications Conference (Globecom), 2018.

15.  Y. Wu, J. Xu, and L. Qiu, "UAV-enabled wireless power transfer with directional antenna: A two-user case," IEEE International Symposium on Wireless Communication Systems (ISWCS), 2018 (invited paper). (available online at https://arxiv.org/abs/1805.03815)

16.  X. Cao, J. Xu, and R. Zhang, "Mobile edge computing for cellular-connected UAV: Computation offloading and trajectory optimization," IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2018 (invited paper).

17.  Y. Huang, J. Xu, L. Qiu, and R. Zhang, "Cognitive UAV communication via joint trajectory and power control," IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2018 (invited paper).

18.  X. Cao, F. Wang, J. Xu, R. Zhang, and S. Cui, “Joint computation and communication cooperation for mobile edge computing,” International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), Workshop on Edge and Fog Computing for Intelligent IoT Applications (EFC-IoT), 2018. 

19.  J. Ouyang, Y. L. Che, J. Xu, and K. Wu, "Throughput maximization for laser-powered UAV wireless communication systems," IEEE International Conference on Communications (ICC) Workshop, 2018. 

20.  Q. Wu, J. Xu, and R. Zhang, "UAV-enabled broadcast channel: Trajectory design and capacity characterization," IEEE International Conference on Communications (ICC) Workshop, 2018. 

21.  L. Xie, J. Xu, and R. Zhang, "Throughput maximization for UAV-enabled wireless powered communication networks," 2018 IEEE 87th Vehicular Technology Conference (VTC2018-Spring), 2018 (invited paper).

22.  Y. Wu, J. Xu, L. Qiu, and R. Zhang, "Capacity of UAV-enabled multicast channel: Joint trajectory design and power allocation," IEEE International Conference on Communications (ICC), 2018. 

23.  H. Xing, L. Liu, J. Xu, and A. Nallanathan, "Joint task assignment and wireless resource allocation for cooperative mobile-edge computing," IEEE International Conference on Communications (ICC), 2018.

24.  J. Xu, Y. Zeng, and R. Zhang, “UAV-enabled multiuser wireless power transfer: Trajectory design and energy optimization,” IEEE Asia-Pacific Conference on Communications (APCC) Workshop, 2017.

25.  F. Wang, J. Xu, Z. Ding, "Optimized multiuser computation offloading with multi-antenna NOMA," IEEE Global Communications Conference (Globecom) Workshop, 2017.

26.  J. Xu, Y. Zeng, and R. Zhang, “UAV-enabled wireless power transfer: Trajectory design and energy region characterization”, IEEE Global Communications Conference (Globecom) Workshop, 2017.

27.  J. Xu, K. Li, L. Duan, and R. Zhang, “Proactive eavesdropping via jamming over HARQ-based communications”, IEEE Global Communications Conference (Globecom), 2017.

28.  G. Ma, J. Xu, L. Duan, and R. Zhang, "Wireless surveillance of two-hop communications," 2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2017 (invited paper). 

29.  F. Wang, J. Xu, X. Wang, and S. Cui, "Joint offloading and computing optimization in wireless powered mobile-edge computing systems," IEEE International Conference on Communications (ICC), 2017.

30.  T. Feng, J. Xu, G. Li, and Y. Che, "Improving wireless energy transfer efficiency via exploring the reaction of coexisting wireless information transfer," 8th International Conference on Internet (ICONI), 2016 (Invited paper). 

31.  J. Xu, L. Duan, and R. Zhang, “Transmit optimization for symbol-level spoofing with BPSK signaling”, IEEE Global Communications Conference (Globecom) Workshop, 2016.

32.  J. Xu, L. Duan, and R. Zhang, “Harnessing self-interference in full-duplex relaying: an analog filter-and-forward approach,” IEEE Global Communications Conference (Globecom), 2016.

33.  J. Xu, L. Duan, and R. Zhang, “Proactive eavesdropping via cognitive jamming in fading channels,'' IEEE International Conference on Communications (ICC), 2016.

34.  S. Luo, J. Xu, T. J. Lim, and R. Zhang, “Capacity region of MISO broadcast channel with SWIPT,” IEEE International Conference on Communications (ICC), 2015.

35.  J. Xu and R. Zhang, “Cooperative energy trading in CoMP systems powered by smart grids,” IEEE Global Communications Conference (Globecom), 2014.

36.  Y. Guo, J. Xu, L. Duan, and R. Zhang, “Optimal energy and spectrum sharing for cooperative cellular systems,” IEEE International Conference on Communications (ICC), 2014.

37.  J. Xu and R. Zhang, “Energy beamforming with one-bit feedback,” IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2014.

38.  K. Rahbar, J. Xu and R. Zhang, “An off-line optimization approach for online energy storage management in microgrid system,” IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2014.

39.  Y. Jin, B. Liu, L. Qiu, J. Xu, and Y. Huang, “QoS aware energy efficient resource allocation in HSDPA systems,” IEEE Wireless Communications and Networking Conference (WCNC), 2014.

40.  J. Xu, Y. Guo, and R. Zhang, “CoMP meets energy harvesting: A new communication and energy cooperation paradigm,” IEEE Global Communications Conference (Globecom), 2013.

41.  Y. Huang, J. Xu, and L. Qiu, “Energy efficient coordinated beamforming for multi-cell MISO systems,” IEEE Global Communications Conference (Globecom), 2013.

42.  J. Xu, L. Liu, and R. Zhang, “Multiuser MISO beamforming for simultaneous wireless information and power transfer,” IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2013.

43.  L. Fang, J. Xu, and L. Qiu, “Energy efficiency optimization for two-way relay channels,” Proceedings of IEEE International Conference on Communications (ICC’13) Workshop on Energy Efficiency in Wireless Networks & Wireless Networks for Energy Efficiency (E2Nets), 2013.

44.  J. Xu, L. Qiu and S. Zhang, “Energy efficient iterative water-filling for the MIMO Broadcasting Channels,” Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), 2012. 

45.  Y. Jin, J. Xu, and L. Qiu, “Optimal energy-efficient scheduling over fading channels with non-ideal circuit power,” 2012 International Conference on Wireless Communications & Signal Processing (WCSP), pp. 1-5, 2012.

46.  J. Xu and L. Qiu, “Robust multimode selection in the downlink multiuser MIMO channels with delayed CSIT,” IEEE International Conference on Communications (ICC), 2011. 

47.  J. Xu and L. Qiu, “Energy consumption in downlink MIMO relay systems with multiple users,” Proceedings of IEEE/ACM International Conference on Green Computing and Communications (GreenCom’10), 2010.

48.  J. Xu and L. Qiu, “Area power consumption in a single cell assisted by relays,” Proceedings of IEEE/ACM International Conference on Green Computing and Communications (GreenCom’10). 2010.

49.  J. Xu, L. Qiu, T. R. Ahsin, and S. B. Slimane, “Scheduling, pairing and ordering in the network coded uplink multiuser MIMO relay channels,” Proceedings of IEEE 71st Vehicular Technology Conference (VTC 2010-Spring), 2010.

50.  J. Xu and L. Qiu, “The effect of channel estimation error in multiuser downlink MIMO relay channels,” Proceedings of IEEE Wireless Communications and Networking Conference (WCNC’10), 2010.

51.  P. Gong, J. Xu, and L. Qiu, “Tomlinson-Harashima precoding in the physical network coded two way MIMO relay channels,” Second International Conference on Future Networks, 2010 (ICFN’10), 2010.