47 citations · 76 across the 19 of their papers we have counts for
21 papers
Spatial-Code-Domain Grouped Index Modulation: Fluid-Antenna-Assisted System Design and BER Performance Analysis
Peng Zhang, Jian Dang, Yao Ge +5
Fluid antenna systems (FASs) provide reconfigurable spatial resources within compact apertures. In this paper, we introduce code-domain grouped index modulation (CGIM) and its spat…
UAV Fluid-Antenna Channel Acquisition under Intra-Scan Channel Aging
Yuanhui Wu, Hao Jiang, Liang Wu +1
Sequential sounding in UAV fluid-antenna systems (FASs) provides additional spatial information but delays transmission, causing earlier channel observations to age. This paper add…
Code-Domain Grouped Index Modulation for Spectrally Efficient Spread-Spectrum Communications
Peng Zhang, Jian Dang, Zaichen Zhang
Efficient exploitation of spreading resources is important for improving the transmission efficiency of spread-spectrum communications. Code index modulation (CIM) conveys addition…
Fluid Antenna Channel Reconstruction with Non-Negative Least Square Detector
Yang Chen, Jian Dang, Zaichen Zhang
Reconstructing the full-aperture channel of a fluid antenna system (FAS) from a few activated ports requires inferring unobserved responses from limited spatial samples. This paper…
Fluid Antenna Array-Inspired Location-Posterior-Driven Subarray Sizing and Power Control for Two-Hop AF UAV Relaying
Xuanyi Zhu, Jian Dang, Chen Zhao +2
This paper develops fluid antenna array (FAA)-inspired subarray sizing and transmit-power design for a two-hop amplify-and-forward (AF) unmanned aerial vehicle (UAV) relay using pr…
Finite-Blocklength ISAC Multiple Access: A Source-Channel Coding Perspective
Zhentian Zhang, Kaitao Meng, Hao Jiang +1
Future networks must serve massive populations of devices that sense and communicate simultaneously under short-packet constraints, yet the fundamental limits of integrated sensing…
Fluid-Antenna-Aided Active User Detection With 1D-CNN Channel Reconstruction for Unsourced Random Access
Haoyu Liang, Zhentian Zhang, Hao Jiang +2
In this paper, we investigate the application of fluid antenna systems (FAS) for active user detection (AUD) in unsourced random access (URA). A channel reconstruction method based…
Fluid Reconfigurable Intelligent Surface Enabling Index Modulation
Peng Zhang, Jian Dang, Miaowen Wen +5
Fluid reconfigurable intelligent surfaces (FRIS) enable joint position and phase reconfigurability by integrating fluid antennas (FA) with conventional reconfigurable intelligent s…
Fundamental Tradeoffs for ISAC Multiple Access in Finite-Blocklength Regime
Zhentian Zhang, Christos Masouros, Kai-Kit Wong +5
This paper investigates the fundamental communication--sensing tradeoffs of uplink dual-functional integrated sensing and communication (ISAC) multiple access under finite blocklen…
Iterative Gaussian Approximation for Random Spreading Unsourced Random Access
Liandong Hu, Jian Dang, Zaichen Zhang
Massive machine-type communications (mMTC) demand robust solutions to support extensive connectivity efficiently. Unsourced random access (URA) has emerged as a promising approach,…
Artificial-Noise-Aided Secure Near-Field MIMO With Fluid Antenna Systems
Peng Zhang, Jian Dang, Miaowen Wen +5
With the evolution of mobile communication systems toward large-scale arrays, high-frequency operation, and reconfigurable antenna architectures, fluid antenna systems (FAS) operat…
Low-Complexity CSI Acquisition Exploiting Geographical Diversity in Fluid Antenna System
Zhentian Zhang, David Morales-Jimenez, Jian Dang +3
The fluid antenna system (FAS) employs reconfigurable antennas for high spatial gains in compact spaces, enhancing physical layer flexibility. Channel state information (CSI) acqui…
Finite-blocklength Fluid Antenna Systems
Zhentian Zhang, Kai-Kit Wong, David Morales-Jimenez +4
This paper investigates fluid antenna systems (FASs) subject to finite-blocklength (FBL) constraints, motivated by the strict reliability-latency and ultra-massive connectivity req…
Probabilistic ODMA Receiver with Low-Complexity Algorithm for MIMO Unsourced Random Access
Zhentian Zhang, Jian Dang, Zaichen Zhang
In this work, we present the design for both pilot-uncoupled and pilot-free on-off multiple access (ODMA) receivers in unsourced random access (URA) for multiple-input multiple-out…
Sparse Code Transceiver Design for Unsourced Random Access with Analytical Power Division in Gaussian MAC
Zhentian Zhang, Mohammad Javad Ahmadi, Jian Dang +3
In this work, we discuss the problem of unsourced random access (URA) over a Gaussian multiple access channel (GMAC). To address the challenges posed by emerging massive machine-ty…
Sparsity-Exploiting Channel Estimation For Unsourced Random Access With Fluid Antenna
Keru Zhou, Zhentian Zhang, Jian Dang +2
This work explores the channel estimation (CE) problem in uplink transmission for unsourced random access (URA) with a fluid antenna receiver. The additional spatial diversity in a…
Integrated Sensing and Communications for Unsourced Random Access: A Spectrum Sharing Compressive Sensing Approach
Zhentian Zhang, Jian Dang, Kai-Kit Wong +2
This paper addresses the unsourced/uncoordinated random access problem in an integrated sensing and communications (ISAC) system, with a focus on uplink multiple access code design…
On Fundamental Limits for Fluid Antenna-assisted Integrated Sensing and Communications for Unsourced Random Access
Zhentian Zhang, Kai-Kit Wong, Jian Dang +2
This paper investigates the unsourced random access (URA) problem for integrated sensing and commutations (ISAC). Recent results reveal that conventional multiple access strategies…
Prototyping and Experimental Results for ISAC-based Channel Knowledge Map
Chaoyue Zhang, Zhiwen Zhou, Xiaoli Xu +3
Channel knowledge map (CKM) is a novel approach for achieving environment-aware communication and sensing. This paper presents an integrated sensing and communication (ISAC)-based…
Integrated Sensing and Channel Estimation by Exploiting Dual Timescales for Delay-Doppler Alignment Modulation
Zhiqiang Xiao, Yong Zeng, Fuxi Wen +2
For integrated sensing and communication (ISAC) systems, the channel information essential for communication and sensing tasks fluctuates across different timescales. Specifically,…
Pilot-Free Unsourced Random Access Via Dictionary Learning and Error-Correcting Codes
Zhentian Zhang, Jian Dang, Zaichen Zhang +3
Massive machine-type communications (mMTC) or massive access is a critical scenario in the fifth generation (5G) and the future cellular network. With the surging density of device…