577 citations · 1.3k across the 30 of their papers we have counts for
19 papers · 1 filter
Channel Estimation for Movable Antenna Communication Systems: A Framework Based on Compressed Sensing
Zhenyu Xiao, Songqi Cao, Lipeng Zhu +3
Movable antenna (MA) is a new technology with great potential to improve communication performance by enabling local movement of antennas for pursuing better channel conditions. In…
Multiuser Communications with Movable-Antenna Base Station: Joint Antenna Positioning, Receive Combining, and Power Control
Zhenyu Xiao, Xiangyu Pi, Lipeng Zhu +2
Movable antenna (MA) is an emerging technology which enables a local movement of the antenna in the transmitter/receiver region for improving the channel condition and communicatio…
Multiuser Communications with Movable-Antenna Base Station Via Antenna Position Optimization
Xiangyu Pi, Lipeng Zhu, Zhenyu Xiao +1
This paper studies the deployment of multiple movable antennas (MAs) at the base station (BS) for enhancing the multiuser communication performance. First, we model the multiuser c…
Active Terminal Identification, Channel Estimation, and Signal Detection for Grant-Free NOMA-OTFS in LEO Satellite Internet-of-Things
Xingyu Zhou, Keke Ying, Zhen Gao +5
This paper investigates the massive connectivity of low Earth orbit (LEO) satellite-based Internet-of-Things (IoT) for seamless global coverage. We propose to integrate the grant-f…
Antenna Array Enabled Space/Air/Ground Communications and Networking for 6G
Zhenyu Xiao, Zhu Han, Arumugam Nallanathan +5
Antenna arrays have a long history of more than 100 years and have evolved closely with the development of electronic and information technologies, playing an indispensable role in…
User Fairness Non-orthogonal Multiple Access (NOMA) for 5G Millimeter-Wave Communications with Analog Beamforming
Zhenyu Xiao, Lipeng Zhu, Zhen Gao +2
The integration of non-orthogonal multiple access in millimeter-Wave communications (mmWave-NOMA) can significantly improve the spectrum efficiency and increase the number of users…
Joint Tx-Rx Beamforming and Power Allocation for 5G Millimeter-Wave Non-Orthogonal Multiple Access (MmWave-NOMA) Networks
Lipeng Zhu, Jun Zhang, Zhenyu Xiao +3
In this paper, we investigate the combination of non-orthogonal multiple access and millimeter-Wave communications (mmWave-NOMA). A downlink cellular system is considered, where an…
Joint Power Control and Beamforming for Uplink Non-Orthogonal Multiple Access in 5G Millimeter-Wave Communications
Lipeng Zhu, Jun Zhang, Zhenyu Xiao +3
In this paper, we investigate the combination of two key enabling technologies for the fifth generation (5G) wireless mobile communication, namely millimeter-wave (mmWave) communic…
Joint Power Allocation and Beamforming for Non-Orthogonal Multiple Access (NOMA) in 5G Millimeter-Wave Communications
Zhenyu Xiao, Lipeng Zhu, Jinho Choi +2
In this paper we explore non-orthogonal multiple access (NOMA) in millimeter-wave (mmWave) communications (mmWave-NOMA). In particular, we consider a typical problem, i.e., maximiz…
Full-Duplex Millimeter-Wave Communication
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
The potential of doubling the spectrum efficiency of full-duplex (FD) transmission motivates us to investigate FD millimeter-wave (FD-mmWave) communication. To realize FD transmiss…
Millimeter-Wave Communication with Non-Orthogonal Multiple Access for 5G
Zhenyu Xiao, Linglong Dai, Zhiguo Ding +2
To further improve the system capacity for 5G, we explore the integration of non-orthogonal multiple access (NOMA) in mmWave communications (mmWave-NOMA) for future 5G systems. Com…
Achievable Sum Rates of Half- and Full-Duplex Bidirectional OFDM Communication Links
Zhenyu Xiao, Yao Li, Lin Bai +1
While full-duplex (FD) transmission has the potential to double the system capacity, its substantial benefit can be offset by the self-interference (SI) and non-ideality of practic…
Codebook Design for Millimeter-Wave Channel Estimation with Hybrid Precoding Structure
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
In this paper, we study hierarchical codebook design for channel estimation in millimeter-wave (mmWave) communications with a hybrid precoding structure. Due to the limited saturat…
Low Complexity Hybrid Precoding and Channel Estimation Based on Hierarchical Multi-Beam Search for Millimeter-Wave MIMO Systems
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
In millimeter-wave (mmWave) MIMO systems, while a hybrid digital/analog precoding structure offers the potential to increase the achievable rate, it also faces the challenge of the…
Enabling UAV Cellular with Millimeter-Wave Communication: Potentials and Approaches
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
To support high data rate urgent or ad hoc communications, we consider mmWave UAV cellular networks and the associated challenges and solutions. To enable fast beamforming training…
Suboptimal Spatial Diversity Scheme for 60 GHz Millimeter-Wave WLAN
Zhenyu Xiao
This letter revisits the equal-gain (EG) spatial diversity technique, which was proposed to combat the human-induced shadowing for 60 GHz wireless local area network, under a more…
Iterative Joint Beamforming Training with Constant-Amplitude Phased Arrays in Millimeter-Wave Communication
Zhenyu Xiao, Lin Bai, Jinho Choi
In millimeter-wave communications (MMWC), in order to compensate for high propagation attenuation, phased arrays are favored to achieve array gain by beamforming, where transmittin…
Iterative Eigenvalue Decomposition and Multipath-Grouping Tx/Rx Joint Beamforming for Millimeter-Wave Communication
Zhenyu Xiao, Xiang-Gen Xia, Depeng Jin +1
We investigate Tx/Rx joint beamforming in millimeter-wave communications (MMWC). As the multipath components (MPCs) have different steering angles and independent fadings, beamform…
Hierarchical Codebook Design for Beamforming Training in Millimeter-Wave Communication
Zhenyu Xiao, Tong He, Pengfei Xia +1
In millimeter-wave communication, large antenna arrays are required to achieve high power gain by steering towards each other with narrow beams, which poses the problem to efficien…