175 citations · 651 across the 63 of their papers we have counts for
14 papers · 1 filter
Hybrid Iterative Detection for OTFS: Interplay between Local L-MMSE and Global Message Passing
Ruohai Yang, Shuangyang Li, Han Yu +3
Orthogonal time frequency space (OTFS) modulation has emerged as a robust solution for high-mobility wireless communications. However, conventional detection algorithms, such as li…
Delay-Doppler Domain Signal Processing Aided OFDM (DD-a-OFDM) for 6G and Beyond
Yiyan Ma, Bo Ai, Jinhong Yuan +10
High-mobility scenarios will be a critical part of 6G systems. Since the widely deployed orthogonal frequency division multiplexing (OFDM) waveform suffers from subcarrier orthogon…
Channel Knowledge Map-assisted Dual-domain Tracking and Predictive Beamforming for High-Mobility Wireless Networks
Ruolin Du, Zhiqiang Wei, Zai Yang +4
This paper introduces a novel channel knowledge map (CKM)-assisted dual-domain tracking and predictive beamforming scheme for high-mobility wireless networks. The central premise i…
Low-Complexity Minimum BER Precoder Design for ISAC Systems: A Delay-Doppler Perspective
Jun Wu, Weijie Yuan, Zhiqiang Wei +3
Orthogonal time frequency space (OTFS) modulation is anticipated to be a promising candidate for supporting integrated sensing and communications (ISAC) systems, which is considere…
Networked Integrated Sensing and Communications for 6G Wireless Systems
Jiapeng Li, Xiaodan Shao, Feng Chen +4
Integrated sensing and communication (ISAC) is envisioned as a key pillar for enabling the upcoming sixth generation (6G) communication systems, requiring not only reliable communi…
Optimal BER Minimum Precoder Design for OTFS-Based ISAC Systems
Jun Wu, Weijie Yuan, Zhiqiang Wei +2
This paper investigates the bit error rate (BER) minimum pre-coder design for an orthogonal time frequency space (OTFS)-based integrated sensing and communications (ISAC) system, w…
Scalable Predictive Beamforming for IRS-Assisted Multi-User Communications: A Deep Learning Approach
Chang Liu, Xuemeng Liu, Zhiqiang Wei +2
Beamforming design for intelligent reflecting surface (IRS)-assisted multi-user communication (IRS-MUC) systems critically depends on the acquisition of accurate channel state info…
Integrated Sensing and Communication-assisted Orthogonal Time Frequency Space Transmission for Vehicular Networks
Weijie Yuan, Zhiqiang Wei, Shuangyang Li +2
Orthogonal time frequency space (OTFS) modulation is a promising candidate for supporting reliable information transmission in high-mobility vehicular networks. In this paper, we c…
Deep Transfer Learning-Assisted Signal Detection for Ambient Backscatter Communications
Chang Liu, Xuemeng Liu, Zhiqiang Wei +3
Existing tag signal detection algorithms inevitably suffer from a high bit error rate (BER) due to the difficulties in estimating the channel state information (CSI). To eliminate…
Location-aware Predictive Beamforming for UAV Communications: A Deep Learning Approach
Chang Liu, Weijie Yuan, Zhiqiang Wei +2
Unmanned aerial vehicle (UAV)-assisted communication becomes a promising technique to realize the beyond fifth generation (5G) wireless networks, due to the high mobility and maneu…
Deep Transfer Learning for Signal Detection in Ambient Backscatter Communications
Chang Liu, Zhiqiang Wei, Derrick Wing Kwan Ng +2
Tag signal detection is one of the key tasks in ambient backscatter communication (AmBC) systems. However, obtaining perfect channel state information (CSI) is challenging and cost…
Sum-Rate Maximization for Multiuser MISO Downlink Systems with Self-sustainable IRS
Shaokang Hu, Zhiqiang Wei, Yuanxin Cai +2
This paper investigates multiuser multi-input single-output (MISO) downlink communications assisted by a self-sustainable intelligent reflection surface (IRS), which can harvest po…
A Simple Variational Bayes Detector for Orthogonal Time Frequency Space (OTFS) Modulation
Weijie Yuan, Zhiqiang Wei, Jinhong Yuan +1
The emerging orthogonal time frequency space (OTFS) modulation technique has shown its superiority to the current orthogonal frequency division multiplexing (OFDM) scheme, in terms…
Mitigating Pilot Contamination in Multi-cell Hybrid Millimeter Wave Systems
Lou Zhao, Zhiqiang Wei, Derrick Wing Kwan Ng +2
In this paper, we investigate the system performance of a multi-cell multi-user (MU) hybrid millimeter wave (mmWave) multiple-input multiple-output (MIMO) network adopting the chan…