A5007320479- Advanced Wireless Communication Technologies
- Advanced MIMO Systems Optimization
- Indoor and Outdoor Localization Technologies
- Antenna Design and Analysis
- Antenna Design and Optimization
- IoT Networks and Protocols
- Energy Harvesting in Wireless Networks
- Sparse and Compressive Sensing Techniques
- Millimeter-Wave Propagation and Modeling
- Head and Neck Surgical Oncology
- Advanced Antenna and Metasurface Technologies
- Underwater Vehicles and Communication Systems
- Advanced Adaptive Filtering Techniques
- Satellite Communication Systems
- Optical Wireless Communication Technologies
- Full-Duplex Wireless Communications
- Photonic and Optical Devices
- Distributed Control Multi-Agent Systems
- Advanced Photonic Communication Systems
- Optical and Acousto-Optic Technologies
- Wireless Body Area Networks
- Cooperative Communication and Network Coding
- Advanced Wireless Communication Techniques
- Advanced Wireless Network Optimization
- Wireless Communication Networks Research
University of Waterloo
2024-2025
Friedrich-Alexander-Universität Erlangen-Nürnberg
2022-2025
Chinese University of Hong Kong, Shenzhen
2022-2024
Southwest University
2016-2024
Nanyang Technological University
2022-2023
Shenzhen Research Institute of Big Data
2023
Xi'an Jiaotong University
2023
China Architecture Design & Research Group (China)
2023
Zhejiang University
2019-2022
National University of Singapore
2022
Intelligent reflecting surface (IRS) has emerged as a promising technology to reconfigure the radio propagation environment by dynamically controlling wireless signal's amplitude and/or phase via large number of elements. In contrast vast literature on studying IRS's performance gains in communications, we study this paper new application IRS for sensing/localizing targets networks. Specifically, propose <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Grant-free random access is a promising protocol to support massive in beyond fifth-generation (B5G) cellular Internet-of-Things (IoT) with sporadic traffic. Specifically, each coherence interval, the base station (BS) performs joint activity detection and channel estimation (JADCE) before data transmission. Due deployment of large-scale antennas array existence huge number IoT devices, JADCE usually has high computational complexity needs long pilot sequences. To solve these challenges,...
With the increasing development of cellular Internet Things (IoT), upcoming fifth-generation wireless network is required to support massive access sporadic traffic devices. In this context, we design a three-phase transmission protocol which consists device detection and channel estimation, uplink data transmission, downlink for IoT, so as realize over limited radio spectrum. We analyze performance proposed derive closed-form expressions achievable rates in terms conditions system...
Intelligent reflecting surface (IRS) is an emerging technology that able to significantly improve the performance of wireless communications by smartly tuning signal reflections at a large number passive elements. On other hand, with ubiquitous devices and ambient radio-frequency signals, sensing has become promising new application for next-generation/ 6G networks. This article proposes IRS-aided paradigm enhancing cost-effectively synergizing low-cost IRS fertile applications. First, we...
In this paper, we consider a challenging secure wireless sensing scenario where legitimate radar station (LRS) intends to detect target at unknown location in the presence of an unauthorized (URS). We aim enhance performance LRS and meanwhile prevent detection same by URS. Under setup, conventional stealth-based approaches such as wrapping with electromagnetic wave absorbing materials are not applicable, since they will disable only URS, but well. To tackle challenge, propose paper new...
This paper investigatesthe issue of cooperative activity detection for grant-free random access in the sixth-generation (6G) cell-free wireless networks with sourced and unsourced paradigms. First, we propose a framework solving problem device access. In particular, multiple points (APs) cooperatively detect via exchanging low-dimensional intermediate information their neighbors. is enabled by proposed covariance-based algorithm exploiting both sparsity-promoting similarity-promoting terms...
This letter provides a deep learning framework for massive grant-free random access in 6G cellular internet of things (IoT) networks. A model-driven algorithm joint activity detection and channel estimation is proposed based on the principle approximate massage passing (AMP). only needs to learn four key parameters, but not whole architecture. More importantly, it does require prior information about active probabilities variance, can significantly improve performance with finite number...
With the increasing development of Internet Things (IoT), upcoming sixth-generation (6G) wireless network is required to support grant-free random access a massive number sporadic traffic devices. In particular, at beginning each time slot, base station (BS) performs joint activity detection and channel estimation (JADCE) based on received pilot sequences sent from active Due deployment large-scale antenna array existence IoT devices, conventional JADCE approaches usually have high...
This paper investigates a reconfigurable intelligent surface (RIS)-aided unsourced random access (URA) scheme for the sixth-generation (6G) wireless networks with massive sporadic traffic devices. First of all, this proposes novel joint active device separation (the message recovery device) and channel estimation architecture RIS-aided URA. Specifically, RIS passive reflection is optimized before successful separation. Then, by associating data sequences to multiple rank-one tensors...
The energy usage of parallel chillers systems accounts for 25-40 % the total cost a building. In light global warming concerns and need conservation, it is essential to distribute load effectively achieve savings in buildings. Accordingly, this study presents multi-strategy improved sparrow search algorithm (MSSA) address optimization optimal loading (OCL) problem. proposed augments basic (SSA) by introducing Sine chaotic map, Levy flight method, Cauchy variation enhance diversity, avoid...
Millimeter-wave/Terahertz (mmW/THz) communications have shown great potential for wideband massive access in next-generation cellular internet of things (IoT) networks. To decrease the length pilot sequences and computational complexity access, this paper proposes a novel joint activity detection channel estimation (JADCE) algorithm. Specifically, after formulating JADCE as problem recovering simultaneously sparse-group low rank matrix according to characteristics mmW/THz channel, we prove...
Six-dimensional movable antenna (6DMA) is an effective approach to improve wireless network capacity by adjusting the 3D positions and rotations of distributed surfaces based on users' spatial distribution statistical channel information. Although continuously positioning/rotating 6DMA can achieve greatest flexibility thus highest improvement, it difficult implement due discrete movement constraints practical stepper motors. Thus, in this paper, we consider a 6DMA-aided base station (BS)...
Integrated sensing and communication (ISAC) is envisioned as a key pillar for enabling the upcoming sixth generation (6G) systems, requiring not only reliable functionalities but also highly accurate environmental capabilities. In this paper, we design novel networked ISAC framework to explore collaboration among multiple users sensing. Specifically, can serve powerful sensors, capturing back scattered signals from target at various angles facilitate computational imaging. Centralized...
Millimeter-wave (mmW)/Terahertz (THz) wideband communication employing a large-scale antenna array is promising technique of the sixth-generation (6G) wireless network for realizing massive machine-type communications (mMTC). To reduce access latency and signaling overhead, we design grant-free random scheme based on joint active device detection channel estimation (JADCE) mmW/THz access. In particular, by exploiting simultaneously sparse low-rank structure channels with spreads in...