Explanipedia

Coordinated Beamforming for Networked Integrated Communication and Multi-TMT Localization Open

Meidong Xia, Zhenyao He, Wei Xu, Yongming Huang, Derrick Wing Kwan Ng , et al. · 2025

Networked integrated sensing and communication (ISAC) has gained significant attention as a promising technology for enabling next-generation wireless systems. To further enhance networked ISAC, delegating the reception of sensing signals …

Rotatable Antenna-Enabled Spectrum Sharing in Cognitive Radio Systems Open

Yanhua Tan, Beixiong Zheng, Fang Yi, Derrick Wing Kwan Ng, Rui Zhang , et al. · 2025

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. Among them, rotatable antenna (RA) technology has recently drawn …

Fluid Antenna System-assisted Physical Layer Secret Key Generation Open

Zhiyu Huang, G. S. Li, Hao Xu, Derrick Wing Kwan Ng · 2025

This paper investigates physical-layer key generation (PLKG) in multi-antenna base station systems, by leveraging a fluid antenna system (FAS) to dynamically customize radio environments. Without requiring additional nodes or extensive rad…

Low-Altitude UAV Tracking via Sensing-Assisted Predictive Beamforming Open

Yifan Jiang, Qingqing Wu, Hongxun Hui, Wen Chen, Derrick Wing Kwan Ng · 2025

Sensing-assisted predictive beamforming, as one of the enabling technologies for emerging integrated sensing and communication (ISAC) paradigm, shows significant promise for enhancing various future unmanned aerial vehicle (UAV) applicatio…

A Framework of Arithmetic-Level Variable Precision Computing for In-Memory Architecture: Case Study in MIMO Signal Processing Open

Kaixuan Bao, Wei Xu, Xiaohu You, Derrick Wing Kwan Ng · 2025

Computational complexity poses a significant challenge in wireless communication. Most existing attempts aim to reduce it through algorithm-specific approaches. However, the precision of computing, which directly relates to both computing …

Information-Theoretic Decentralized Secure Aggregation with Collusion Resilience Open

Xiang Zhang, Li Zhou, Derrick Wing Kwan Ng, Giuseppe Caire · 2025

In decentralized federated learning (FL), multiple clients collaboratively learn a shared machine learning (ML) model by leveraging their privately held datasets distributed across the network, through interactive exchange of the intermedi…

Sum-Rate Maximization for Movable-Antenna Array Enhanced Downlink NOMA Systems Open

Nianzu Li, Peiran Wu, Lipeng Zhu, Weidong Mei, Boyu Ning , et al. · 2025

Movable antenna (MA) systems have recently attracted significant attention in the field of wireless communications owing to their exceptional capability to proactively reconfigure wireless channels via flexible antenna movements. In this p…

Robust ISAC Transceiver Beamforming Design under Low-Resolution AD/DA Converters Open

Tie-ying Xu, Zhenyao He, Jindan Xu, Wei Xu, Jianfeng Wang , et al. · 2025

In this letter, we investigate the robust beamforming design for an integrated sensing and communication (ISAC) system featuring low-resolution digital-to-analog converters (DACs) and analog-to-digital converters (ADCs). Taking into accoun…

Resource Allocation for Multi-waveguide Pinching Antenna-assisted Broadcast Networks Open

Ruotong Zhao, Shaokang Hu, Deepak Mishra, Derrick Wing Kwan Ng · 2025

In this paper, we investigate the resource allocation for multi-dielectric waveguide-assisted broadcast systems, where each waveguide employs multiple pinching antennas (PAs), aiming to maximize the minimum achievable rate among multiple u…

Channel Knowledge Map-assisted Dual-domain Tracking and Predictive Beamforming for High-Mobility Wireless Networks Open

Ruolin Du, Zhiqiang Wei, Zai Yang, Yong Zeng, Derrick Wing Kwan Ng · 2025

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 is that the CKM integrates both the coordinate and beam doma…

Movable-Antenna Array Enhanced Downlink NOMA Open

Nianzu Li, Peiran Wu, Lipeng Zhu, Derrick Wing Kwan Ng · 2025

Movable antenna (MA) has gained increasing attention in the field of wireless communications due to its exceptional capability to proactively reconfigure wireless channels via localized antenna movements. In this paper, we investigate the …

Polarized 6D Movable Antenna for Wireless Communication: Channel Modeling and Optimization Open

Xiaodan Shao, Qijun Jiang, Derrick Wing Kwan Ng, Naofal Al-Dhahir · 2025

In this paper, we propose a novel polarized six-dimensional movable antenna (P-6DMA) to enhance the performance of wireless communication cost-effectively. Specifically, the P-6DMA enables polarforming by adaptively tuning the antenna's po…

Robust Secure Communications in Near-Field ISCAP Systems with Extremely Large-Scale Antenna Array Open

Zixiang Ren, Siyao Zhang, Ling Qiu, Derrick Wing Kwan Ng, Jie Xu · 2025

This paper investigates robust secure communications in a near-field integrated sensing, communication, and powering (ISCAP) system, in which the base station (BS) is equipped with an extremely large-scale antenna array (ELAA). In this sys…

Deep Learning-Empowered Secure Predictive Beamforming Design for Integrated Sensing and Communications Systems Open

Junkai Zhang, Zhen Qiao, Faheem A. Khan, Guanzhang Liu, Zhiqiang Wei , et al. · 2025

Computer science

In the era of upcoming sixth-generation (6G) wireless systems, the intelligent integrated sensing and communication (ISAC) paradigm has emerged as a pivotal research domain, catalyzing advancement across a wide range of applications. In th…

Dynamic Precoding for Near-Field Secure Communications: Implementation and Performance Analysis Open

Zihao Teng, Jiancheng An, Christos Masouros, Hongbin Li, Lu Gan , et al. · 2025

The increase in antenna apertures and transmission frequencies in next-generation wireless networks is catalyzing advancements in near-field communications (NFC). In this paper, we investigate secure transmission in near-field multi-user m…

Near-Field Channel Estimation for XL-MIMO: A Deep Generative Model Guided by Side Information Open

Zhenzhou Jin, Li You, Derrick Wing Kwan Ng, Xiang‐Gen Xia, Xiqi Gao · 2025

Computer science Mathematics

This paper investigates the near-field (NF) channel estimation (CE) for extremely large-scale multiple-input multiple-output (XL-MIMO) systems. Considering the pronounced NF effects in XL-MIMO communications, we first establish a joint ang…

A Unified QoS-Aware Multiplexing Framework for Next Generation Immersive Communication with Legacy Wireless Applications Open

Jihong Li, Shunqing Zhang, Tao Yu, Guangjin Pan, Kaixuan Huang , et al. · 2025

Immersive communication, including emerging augmented reality, virtual reality, and holographic telepresence, has been identified as a key service for enabling next-generation wireless applications. To align with legacy wireless applicatio…

Opportunistic Collaborative Planning with Large Vision Model Guided Control and Joint Query-Service Optimization Open

Jiayi Chen, Shuai Wang, Wei Xu, Guangxu Zhu, Derrick Wing Kwan Ng , et al. · 2025

Navigating autonomous vehicles in open scenarios is a challenge due to the difficulties in handling unseen objects. Existing solutions either rely on small models that struggle with generalization or large models that are resource-intensiv…

Complexity-Scalable Near-Optimal Transceiver Design for Massive MIMO-BICM Systems Open

Jie Yang, Wanchen Hu, Yi Jiang, Yonghui Li, Xin Wang , et al. · 2025

Future wireless networks are envisioned to employ multiple-input multiple-output (MIMO) transmissions with large array sizes, and therefore, the adoption of complexity-scalable transceiver becomes important. In this paper, we propose a nov…

Sum-Rate Maximization for Pinching Antenna-assisted NOMA Systems with Multiple Dielectric Waveguides Open

Shaokang Hu, Ruotong Zhao, Yihuan Liao, Derrick Wing Kwan Ng, Jinhong Yuan · 2025

This paper investigates the resource allocation design for a pinching antenna (PA)-assisted multiuser multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) system featuring multiple dielectric waveguides. To enhance mod…

Multi-Cell Coordinated Beamforming for Integrate Communication and Multi-TMT Localization Open

Meidong Xia, Wei Xu, Jindan Xu, Zhenyao He, Zhaohui Yang , et al. · 2025

This paper investigates integrated localization and communication in a multi-cell system and proposes a coordinated beamforming algorithm to enhance target localization accuracy while preserving communication performance. Within this integ…

GDM4MMIMO: Generative Diffusion Models for Massive MIMO Communications Open

Zhenzhou Jin, You Li, H. Zhou, Yuanshuo Wang, Xiaofeng Liu , et al. · 2024

Computer science Physics

Massive multiple-input multiple-output (MIMO) offers significant advantages in spectral and energy efficiencies, positioning it as a cornerstone technology of fifth-generation (5G) wireless communication systems and a promising solution fo…

Energy-Efficient RIS-Aided Cell-Free Massive MIMO Systems: Application, Opportunities, and Challenges Open

Yu Wei Lu, Jiayi Zhang, Enyu Shi, Peng Zhang, Derrick Wing Kwan Ng , et al. · 2024

Computer science Engineering

Reconfigurable intelligent surfaces (RIS)-assisted cell-free massive multiple-input multiple-output (CF mMIMO) systems have emerged as a promising technology for sixth-generation communication systems. These systems capitalize on RIS to mi…

Unveiling the Potential of NOMA: A Journey to Next Generation Multiple Access Open

Adeel Ahmed, Xingfu Wang, Ammar Hawbani, Weijie Yuan, Hina Tabassum , et al. · 2024

Computer science

Revolutionary sixth-generation wireless communications technologies and applications, notably digital twin networks (DTN), connected autonomous vehicles (CAVs), space-air-ground integrated networks (SAGINs), zero-touch networks, industry 5…

Reconfigurable Intelligent Surface-Aided Secure Integrated Radar and Communication Systems Open

Tong-Xing Zheng, Xin Chen, Lan Lan, Ying Ju, Xiaoyan Hu , et al. · 2024

Computer science Engineering

Despite the enhanced spectral efficiency brought by the integrated radar and communication technique, it poses significant risks to communication security when confronted with malicious radar targets. To address this issue, a reconfigurabl…

Deep Learning Based Near-Field User Localization with Beam Squint in Wideband XL-MIMO Systems Open

Hao Lei, Jiayi Zhang, Huahua Xiao, Derrick Wing Kwan Ng, Bo Ai · 2024

Computer science Engineering Physics

Extremely large-scale multiple-input multiple-output (XL-MIMO) is gaining attention as a prominent technology for enabling the sixth-generation (6G) wireless networks. However, the vast antenna array and the huge bandwidth introduce a non-…

Joint Precoding and AP Selection for Energy Efficient RIS-aided Cell-Free Massive MIMO Using Multi-agent Reinforcement Learning Open

Enyu Shi, Jiayi Zhang, Ziheng Liu, Yiyang Zhu, Chau Yuen , et al. · 2024

Computer science Engineering Mathematics

Cell-free (CF) massive multiple-input multiple-output (mMIMO) and reconfigurable intelligent surface (RIS) are two advanced transceiver technologies for realizing future sixth-generation (6G) networks. In this paper, we investigate the joi…

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