北航“卓越百人”副教授，博士生导师，任职于北京航空航天大学电子信息工程学院。主持国家自然科学基金项目、国家重点研发计划项目课题、民航重点实验室基金等。曾担任国际电信联盟地空通信议题中方负责人，目前担任国际民航组织通信专家组专家。担任IEEE TCOM （IF: 7.2）编委。研究领域包括航空宽带通信技术、多天线通信技术、多址技术、以及基于机器学习的新一代无线通信技术等。

有意申请本课题组硕士、博士的同学请直接发邮件至jingjingzhao@buaa.edu.cn。

主讲课程

本科生课程：通信原理

研究生课程：卫星通信网络

研究方向

1.夹子天线（PASS）通信技术

We proposed a novel concept of waveguide division multiple access (WDMA) for multi-user pinching-antenna systems (PASS). The key principle of WDMA is to allocate each user with a dedicated waveguide, which is regarded as a new type of radio resources, so as to facilitate multi-user communications. By adjusting the activation positions of pinching antennas (PAs) over each waveguide, the pinching beamforming can be exploited for intended user signal enhancement and inter-user interference mitigation. Considering both ideal continuous and practical discrete PA position activation schemes, a joint power allocation and pinching beamforming optimization problem is formulated for the maximization of the sum rate. An alternating optimization-based algorithm is developed to address the formulated non-convex problem. For solving the power allocation subproblem, the successive convex approximation method is invoked. For the pinching beamforming design subproblem, a penalty-based gradient ascent algorithm is first developed for the continuous PA activation case. Then, for the discrete PA activation case, a matching theory-based algorithm is proposed to achieve the near-optimal performance but with a low complexity. 

Fig. 1 [Waveguide division multiple access (WDMA) by PASS]

2. 可移动天线智能超表面（Movable-Element STAR）通信技术

Conventional MIMO/RIS/STARS technologies generally employ fixed position antennas (FPAs), where the spacing among antennas is commonly set to half of the wavelength. Such discrete antenna deployment can not fully exploit the spatial DoFs and thus results in array gain loss within the antenna region. To tackle this issue, position-adjustable antenna (PAA) technologies, such as fluid antenna (FA) and movable antenna (MA), have been recently studied for further enhancing the system performance. Specifically, the antennas positions can be flexibly changed within a confined region in the order of several to tens of wavelengths, in the purpose of constructing favorable channel conditions. The significant performance merits of PAA-enabled communications compared to the conventional FPAs system in terms of received signal strength enhancement, flexible beamforming, and multiplexing improvement have been well validated in previous studies, which also brings new opportunities to the STARS communication systems for higher performance gain.

Fig 1. [ME-STARS-aided downlink multiuser communication]

Fig.2 [ME-STARS-aided secure communications]

3. 空地通感一体化技术

We proposed a novel near-field integrated sensing and communications framework for secure unmanned aerial vehicle (UAV) networks with high time efficiency. A ground base station (GBS) with large aperture size communicates with one communication UAV (C-UAV) under the existence of one eavesdropping UAV (E-UAV), where the artificial noise (AN) is employed for both jamming and sensing purpose. Given that the E-UAV's motion model is unknown at the GBS, we first propose a near-field  localization and trajectory tracking scheme. Specifically, exploiting the variant Doppler shift observations over the spatial domain in the near field, the E-UAV's three-dimensional (3D) velocities are estimated from echo signals. To provide the timely correction of location prediction errors, the extended Kalman filter (EKF) is adopted to fuse the predicted states and the measured ones. Subsequently, based on the real-time predicated location of the E-UAV, we further propose a joint GBS beamforming and C-UAV trajectory design scheme for maximizing the instantaneous secrecy rate, while guaranteeing the sensing accuracy constraint.

 Fig. 1 [Air-to-ground integrated sensing and communications]  

4. 基于AI的空地阵列天线通信技术

We proposed a novel beam tracking approach realize reliable air-to-ground (A2G) transmissions with reduced pilot overhead and time delay. The proposed beam tracking strategy consists of two stages, namely the model-driven channel tracking and the model-data dual driven hybrid beamforming (HBF). For the model-driven channel tracking, the angle-of-arrivals/angle-of-departures (AoAs/AoDs) are predicted by leveraging the regularity of the three-dimensional flight track and attitude, as well as the A2G geometrical information with temporal correlations. Then, the high-dimensional channel matrix estimation problem is converted to the low-dimensional multipath components parameters estimation tasks, which substantially reduces the pilot overhead. The proposed model-data dual-driven HBF module unfolds the iterative HBF algorithms and introduces a set of trainable parameters, which brings in both low complexity and high interpretability. To further improve the HBF robustness against imperfect channel state information, the denoise neural network is employed to exploit spatial-domain channel correlations for improved channel accuracy.

Fig. 1 [Model-data dual driven air-to-ground beamforming]

Fig. 2 [Model-data dual driven interference-resistant beamforming]

代表性学术论文

• [1] J. Zhao, J. Su, K. Cai, Y. Zhu, Y. Liu and N. Al-Dhahir, "Interference-Robust Broadband Rapidly-Varying MIMO Communications: A Knowledge-Data Dual Driven Framework," in IEEE Transactions on Wireless Communications, vol. 24, no. 7, pp. 5648-5663, July 2025,

• [2] J. Zhao, X. Lv, Z. Wang, Y. Liu, S. Jin and Y. Zhu, "Hybrid Driven Learning Aided Beam Tracking in Air-to-Ground MIMO-OFDM Communications," in IEEE Transactions on Communications, vol. 73, no. 7, pp. 4958-4973, July 2025,

• [3] J. Zhao, Q. Xu, X. Mu, Y. Liu and Y. Zhu, "Aerial Active STAR-RIS-Aided IoT NOMA Networks," in IEEE Internet of Things Journal, vol. 12, no. 8, pp. 9525-9538, April, 2025

• [4] J. Zhao, et al., "Multiple-Antenna Aided Aeronautical Communications in Air-Ground Integrated Networks: Channel Estimation, Reliable Transmission, and Multiple Access," in IEEE Wireless Communications, vol. 31, no. 2, pp. 105-111, April 2024, doi: 10.1109/MWC.014.2200414.

• [5] J. Zhao, et al., "Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface (STAR-RIS) Assisted UAV Communications," in IEEE Journal on Selected Areas in Communications, vol. 40, no. 10, pp. 3041-3056, Oct. 2022, doi: 10.1109/JSAC.2022.3196102.

• [6] J. Zhao, et al., "RIS-Aided Ground-Aerial NOMA Communications: A Distributionally Robust DRL Approach," in IEEE Journal on Selected Areas in Communications, vol. 40, no. 4, pp. 1287-1301, April 2022, doi: 10.1109/JSAC.2022.3143230.

• [7 ] J. Zhao, et al., "Spectrum Allocation and Power Control for Non-Orthogonal Multiple Access in HetNets," in IEEE Transactions on Wireless Communications, vol. 16, no. 9, pp. 5825-5837, Sept. 2017, doi: 10.1109/TWC.2017.2716921.

• [8] J. Zhao, et al., "Joint Subchannel and Power Allocation for NOMA Enhanced D2D Communications," in IEEE Transactions on Communications, vol. 65, no. 11, pp. 5081-5094, Nov. 2017, doi: 10.1109/TCOMM.2017.2741941.

学术兼职

IEEE Member

IEEE Transactions on Communications Editor

Reviewer for IEEE JSAC/TWC/TCOM/CL/WCL