105 citations · 196 across the 40 of their papers we have counts for
41 papers
Movable Subarray-Aided Hybrid Beamforming for Near-Field Multiuser Communications
Xiangqian Xu, Songjie Yang, Arumugam Nallanathan
Movable antenna (MA)-enabled near-field (NF) communications offer significant potential for 6G, yet existing designs often neglect the practical constraints of hybrid beamforming (…
Hybrid Beamforming for Subarray-Level Movable Antenna Enhanced MU-MIMO Communications
Shanshan Zhang, Songjie Yang, Wenxuan Zhang +2
This study investigates subarray-level movable antenna (MA) architecture for multi-user MIMO (MU-MIMO) systems. Unlike conventional systems with fixed-position antennas (FPAs), the…
Flexible Cylindrical Array-Aided Secure Wireless Communications
Xiangyu Dong, Ran Yang, Songjie Yang +4
Flexible-geometry arrays based on movable antennas have shown considerable potential for improving wireless communication performance. In this letter, we investigate a multiuser mu…
Near-Field Multiuser Beam Training for XL-MIMO: An End-to-End Interference-Aware Approach with Pilot Limitations
Xinyang Li, Songjie Yang, Xiang Ling +3
Near-field propagation in extremely large-scale MIMO (XL-MIMO) enlarges the beam training (BT) search space by introducing an additional range dimension, which makes conventional c…
Indirect and Direct Multiuser Hybrid Beamforming for Far-Field and Near-Field Communications: A Deep Learning Approach
Xinyang Li, Songjie Yang, Boyu Ning +3
Hybrid beamforming for extremely large-scale multiple-input multiple-output (XL-MIMO) systems is challenging in the near field because the channel depends jointly on angle and dist…
Precoding Matrix Indicator in the 5G NR Protocol: A Tutorial on 3GPP Beamforming Codebooks
Boyu Ning, Haifan Yin, Sixu Liu +8
This paper bridges this critical gap by providing a systematic examination of the beamforming codebook technology, i.e., precoding matrix indicator (PMI), in the 5G NR from theoret…
Cross-field SNR Analysis and Tensor Channel Estimation for Multi-UAV Near-field Communications
Tianyu Huo, Jian Xiong, Yiyan Wu +3
Extremely large antenna array (ELAA) is key to enhancing spectral efficiency in 6G networks. Leveraging the distributed nature of multi-unmanned aerial vehicle (UAV) systems enable…
Flexible WMMSE Beamforming for MU-MIMO Movable Antenna Communications
Songjie Yang, Zihang Wan, Yue Xiu +4
Movable antennas offer new potential for wireless communication by introducing degrees of freedom in antenna positioning, which has recently been explored for improving sum rates.…
Beamforming for Movable and Rotatable Antenna Enabled Multi-User Communications
Ruojing Zhao, Yifei Xu, Songjie Yang +2
In the development of wireless communication technology, multiple-input multiple-output (MIMO) technology has emerged as a key enabler, significantly enhancing the capacity of comm…
Modeling and Optimization for Flexible Cylindrical Arrays-Enabled Wireless Communications
Songjie Yang, Jiahe Guo, Zilin He +5
Flexible-geometry arrays have garnered much attention in wireless communications, which dynamically adjust wireless channels to improve the system performance. In this paper, we pr…
Flexible Intelligent Metasurface-Aided Wireless Communications: Architecture and Performance
Songjie Yang, Zihang Wan, Boyu Ning +4
Typical reconfigurable intelligent surface (RIS) implementations include metasurfaces with almost passive unit elements capable of reflecting their incident waves in controllable w…
Flexible Cylindrical Arrays with Movable Antennas for MISO System: Beamforming and Position Optimization
Jiahe Guo, Songjie Yang, Xiangyu Dong +4
As wireless communication advances toward the 6G era, the demand for ultra-reliable, high-speed, and ubiquitous connectivity is driving the exploration of new degrees-of-freedom (D…
Power Source Allocation for RIS-aided Integrating Sensing, Communication, and Power Transfer Systems Based on NOMA
Yue Xiu, Yang Zhao, Chenfei Xie +5
This paper proposes a novel communication system framework based on a reconfigurable intelligent surface (RIS)-aided integrated sensing, communication, and power transmission (ISCP…
Movable Antenna Enabled Integrated Sensing and Communication
Wanting Lyu, Songjie Yang, Yue Xiu +3
In this paper, we investigate a novel integrated sensing and communication (ISAC) system aided by movable antennas (MAs). A bistatic radar system, in which the base station (BS) is…
Movable Antenna Enabled ISAC Beamforming Design for Low-Altitude Airborne Vehicles
Yue Xiu, Songjie Yang, Wanting Lyu +3
In mobile systems with low-altitude vehicles, integrated sensing and communication (ISAC) is considered an effective approach to increase the transmission rate due to limited spect…
Robust Beamforming Design for Near-Field DMA-NOMA mmWave Communications With Imperfect Position Information
Yue Xiu, Yang Zhao, Songjie Yang +4
For millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) communication systems, we propose an innovative near-field (NF) transmission framework based on dynamic metasurfa…
Movable Antenna-Enhanced Wireless Communications: General Architectures and Implementation Methods
Boyu Ning, Songjie Yang, Yafei Wu +4
Movable antennas (MAs), traditionally explored in antenna design, have recently garnered significant attention in wireless communications due to their ability to dynamically adjust…
Extremely Large-Scale Dynamic Metasurface Antennas (XL-DMAs): Near-Field Modeling and Channel Estimation
Songjie Yang, Wanting Lyu, Boyu Ning +5
Dynamic metasurface antennas (DMAs) represent a novel transceiver array architecture for extremely large-scale (XL) communications, offering the advantages of reduced power consump…
Flexible Antenna Arrays for Wireless Communications: Modeling and Performance Evaluation
Songjie Yang, Jiancheng An, Yue Xiu +5
Flexible antenna arrays (FAAs), distinguished by their rotatable, bendable, and foldable properties, are extensively employed in flexible radio systems to achieve customized radiat…
Near-Field Channel Estimation for Extremely Large-Scale Terahertz Communications
Songjie Yang, Yizhou Peng, Wanting Lyu +4
Future Terahertz communications exhibit significant potential in accommodating ultra-high-rate services. Employing extremely large-scale array antennas is a key approach to realize…
Dual-Robust Integrated Sensing and Communication: Beamforming under CSI Imperfection and Location Uncertainty
Wanting Lyu, Songjie Yang, Yue Xiu +4
A dual-robust design of beamforming is investigated in an integrated sensing and communication (ISAC) system.Existing research on robust ISAC waveform design, while proposing solut…
Flexible Beamforming for Movable Antenna-Enabled Integrated Sensing and Communication
Wanting Lyu, Songjie Yang, Yue Xiu +3
This paper investigates flexible beamforming design in an integrated sensing and communication (ISAC) network with movable antennas (MAs). A bistatic radar system is integrated int…
RIS-Enabled Joint Near-Field 3D Localization and Synchronization in SISO Multipath Environments
Han Yan, Hua Chen, Wei Liu +3
Reconfigurable Intelligent Surfaces (RIS) show great promise in the realm of 6th generation (6G) wireless systems, particularly in the areas of localization and communication. Thei…
Flexible Precoding for Multi-User Movable Antenna Communications
Songjie Yang, Wanting Lyu, Boyu Ning +2
This letter rethinks traditional precoding in multi-user wireless communications with movable antennas (MAs). Utilizing MAs for optimal antenna positioning, we introduce a sparse o…