5 citations · 9 across the 13 of their papers we have counts for
14 papers
Doppler Shift Keying Modulation for Uplink Multiple Access over Doubly-Dispersive Channels
Xuehan Wang, Jintao Wang, Hai Lin +4
The delay-Doppler (DD) domain modulation has been regarded as one of the most competitive candidates to support wireless communications for emerging high-mobility applications in t…
RSMA-Assited and Transceiver-Coordinated ICI Management for MIMO-OFDM System
Hengyu Zhang, Xuehan Wang, Xu Shi +2
High-mobility scenarios are becoming increasingly critical in next-generation communication systems. While multiple-input multiple-output orthogonal frequency division multiplexing…
Leveraging Channel Knowledge Map for Multi-User Hierarchical Beam Training Under Position Uncertainty
Xu Shi, Haohan Wang, Yashuai Cao +3
Channel knowledge map (CKM) emerges as a promising framework to acquire location-specific channel information without consuming wireless resources, creating new horizons for advanc…
BeamCKM: A Framework of Channel Knowledge Map Construction for Multi-Antenna Systems
Haohan Wang, Xu Shi, Hengyu Zhang +4
The channel knowledge map (CKM) enables efficient construction of high-fidelity mapping between spatial environments and channel parameters via electromagnetic information analysis…
Beamforming-Codebook-Aware Channel Knowledge Map Construction for Multi-Antenna Systems
Haohan Wang, Xu Shi, Hengyu Zhang +2
Channel knowledge map (CKM) has emerged as a crucial technology for next-generation communication, enabling the construction of high-fidelity mappings between spatial environments…
Statistical CSI Acquisition for Multi-frequency Massive MIMO Systems
Jinke Tang, Li You, Xinrui Gong +4
Multi-frequency massive multi-input multi-output (MIMO) communication is a promising strategy for both 5G and future 6G systems, ensuring reliable transmission while enhancing freq…
Lightweight and Self-Evolving Channel Twinning: An Ensemble DMD-Assisted Approach
Yashuai Cao, Jintao Wang, Xu Shi +1
Traditional channel acquisition faces significant limitations due to ideal model assumptions and scalability challenges. A novel environment-aware paradigm, known as channel twinni…
Sparse Estimation for XL-MIMO with Unified LoS/NLoS Representation
Xu Shi, Xuehan Wang, Jingbo Tan +1
Extremely large-scale antenna array (ELAA) is promising as one of the key ingredients for the sixth generation (6G) of wireless communications. The electromagnetic propagation of s…
Input-Output Relation and Low-Complexity Receiver Design for CP-OTFS Systems with Doppler Squint
Xuehan Wang, Xu Shi, Jintao Wang +1
In orthogonal time frequency space (OTFS) systems, the impact of frequency-dependent Doppler which is referred to as the Doppler squint effect (DSE) is accumulated through longer d…
On the Doppler Squint Effect in OTFS Systems over Doubly-Dispersive Channels: Modeling and Evaluation
Xuehan Wang, Xu Shi, Jintao Wang +1
Extensive work has demonstrated the excellent performance of orthogonal time frequency space (OTFS) modulation in high-mobility scenarios. Time-variant wideband channel estimation…
Chirp-based Hierarchical Beam Training for Extremely Large-Scale Massive MIMO
Xu Shi, Jintao Wang, Zhi Sun +1
XL-MIMO promises to provide ultrahigh data rates in Terahertz (THz) spectrum. However, the spherical-wavefront wireless transmission caused by large aperture array presents huge ch…
Enhanced Tracking and Beamforming Codebook Design for Wideband Terahertz Massive MIMO System
Xu Shi, Jintao Wang, Jian Song
True-time-delay (TTD) lines are recently applied inside Terahertz (THz) hybrid-precoding transceiver to acquire high beamforming gain against beam squint effect. However, beam trac…
Spatial-chirp Codebook-based Hierarchical Beam Training for Extremely Large-Scale Massive MIMO
Xu Shi, Jintao Wang, Zhi Sun +1
Extremely large-scale multiple-input multiple-output (XL-MIMO) promises to provide ultrahigh data rates in millimeter-wave (mmWave) and Terahertz (THz) spectrum. However, the spher…
Triple-Structured Compressive Sensing-based Channel Estimation for RIS-aided MU-MIMO Systems
Xu Shi, Jintao Wang, Guozhi Chen +1
Reconfigurable intelligent surface (RIS) has been recognized as a potential technology for 5G beyond and attracted tremendous research attention. However, channel estimation in RIS…