47 citations · 126 across the 34 of their papers we have counts for
11 papers · 2 filters
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,…
Joint Activity Detection and Channel Estimation For Fluid Antenna System Exploiting Geographical and Angular Information
Zhentian Zhang, Jian Dang, David Morales-Jimenez +4
The fluid antenna system (FAS) refers to a family of reconfigurable antenna technologies that provide substantial spatial gains within a compact, predefined small space, thereby of…
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…
Fluid Antenna-Enhanced Flexible Beamforming
Jingyuan Xu, Zhentian Zhang, Jian Dang +2
Fluid antenna systems encompass a broad class of reconfigurable antenna technologies that offer substantial spatial diversity for various optimization objectives and communication…
Neural Networks-Enabled Channel Reconstruction for Fluid Antenna Systems: A Data-Driven Approach
Haoyu Liang, Zhentian Zhang, Jian Dang +2
Fluid antenna systems (FASs) offer substantial spatial diversity by exploiting the electromagnetic port correlation within compact array spaces, thereby generating favorable small-…
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…
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…