A5066978200- Advanced MIMO Systems Optimization
- Energy Harvesting in Wireless Networks
- Wireless Body Area Networks
- Millimeter-Wave Propagation and Modeling
- Cooperative Communication and Network Coding
- Advanced Wireless Network Optimization
- IoT Networks and Protocols
- Antenna Design and Analysis
- Bluetooth and Wireless Communication Technologies
- Advanced Wireless Communication Technologies
- Opportunistic and Delay-Tolerant Networks
- COVID-19 impact on air quality
- COVID-19 Pandemic Impacts
- Full-Duplex Wireless Communications
- Research studies in Vietnam
- Antenna Design and Optimization
- Market Dynamics and Volatility
- Cognitive Radio Networks and Spectrum Sensing
- Analysis of environmental and stochastic processes
- Wireless Power Transfer Systems
- Power Line Communications and Noise
- Digital Transformation in Industry
- IoT and Edge/Fog Computing
- Geochemistry and Geochronology of Asian Mineral Deposits
- Wireless Communication Security Techniques
University of Warwick
2022-2025
Thuongmai University
2022-2024
IRD Fuel Cells (Denmark)
2024
Queen's University Belfast
2016-2020
Soongsil University
2013-2017
In this paper, the performance of opportunistic relay selection (ORS) in a cognitive radio is analyzed over flat Rayleigh fading channels. Data transmission between source and destination assumed to be entirely performed via relays. Relay nodes are have ability harvest energy from signal use that harvested forward information destination. Specifically, we derive an exact expression for outage probability secondary system considering maximum transmit power at transmitter relays, harvesting...
This article presents a general system framework that lays the foundation for reconfigurable intelligent surface (RIS)-enhanced broadcast communications in Industrial Internet of Things (IIoTs). In our model, we consider multiple sensor clusters co-existing smart factory where direct links between these and central base station (BS) are blocked completely. this context, RIS is utilized to reflect signals from BS toward cluster heads (CHs) which act as representative clusters, only has access...
Millimeter-wave (mmWave) carriers are an essential building block of fifth-generation (5G) systems. Satisfactory performance the communications over mmWave spectrum requires alignment between signal beam transmitter and receiver, achieved via training protocols. Nevertheless, is vulnerable to jamming attacks, where attacker intends send signals different spatial directions confuse legitimate nodes. This paper focuses on defending against this attack in smart factories a moving Automated...
This paper presents an analytical framework which lays the foundation for distributed massive multiple-input multiple-output (MIMO) supported wireless power transfer wearable devices. In our approach, we consider multiple users, each wearing a number of sensors along with one body worn hub acts as relay to forward information from on-body nearby access points (APs). Each AP is equipped large antennas and not only responsible receiving data sent hubs, but also supplying them. Interaction...
Abstract Device‐to‐device (D2D) communications have emerged as a promising solution that can enable new wireless local services and enhance the performance of in cellular networks. However, D2D links network are difficult to establish because mutual interference between transmissions. Hence, it is primary importance devise radio resource allocation scheme maximise spectrum utilisation at same time minimise impact interference. In this article, we propose novel method for underlaying The...
Factory automation design engineers building the Smart can use wireless 5G broadband networks for added flexibility. New Radio builds upon previous cellular communications standards to include technology "massive machine-type communication" and "ultra-reliable low-latency communication". In this work, authors augment an automated guided vehicle with additional capabilities (e.g., streaming high-resolution video enabling long-distance teleoperation), increasing mobile applications industrial...
This article proposes a novel Industrial Internet of Things framework to monitor the machine health conditions (MHCs) in smart factory. The utilizes reconfigurable intelligent surface (RIS) address propagation blockages while employing power mapping scheme and an autoencoder facilitate transmission classification MHCs. Analytical numerical analyses are then performed study ergodic capacity (primary information) MHC accuracy (secondary terms RIS size ( <inline-formula...
Internet enabled body area networks (BANs) will form a core part of future remote health monitoring and ambient assisted living technology. In BAN applications, due to the dynamic nature human activity, off-body channel can be prone deep fading caused by shadowing multipath fading. Using this knowledge, we present some novel practical adaptive power control protocols based on deviation simultaneously prolong lifetime wearable devices reduce outage probability. The proposed schemes are both...
This paper presents sub-6 GHz channel measurements using a directional antenna at the transmitter and or omnidirectional receiver 4.145 in sparse dense industrial environments for line-of-sight scenario. Furthermore, first measured over-the-air error vector magnitude (EVM) results depending on different 5G new radio modulation coding schemes (MCSs of16 QAM, 64 QAM 256 QAM) are provided. From measurement campaigns, path loss exponents (PLE) an environment 1.24/1.39 1.35/1.5, respectively. PLE...
Device-to-Device (D2D) communication has become an important technology in future networks, since it can provide advantages such as cell throughput enhancement, user equipment power saving, and increased instantaneous data rate. However, the performance of both D2D cellular be affected by mutual interferences between them. In this paper, we analyze a resource allocation method for links underlaying networks. A novel which allows more than one pair to reuse downlink is proposed. addition,...
In this paper, we consider massive multiple-input multiple-output (MIMO) multicell systems with very large antenna arrays at base station (BS). We propose an eigenvalue decomposition (EVD) approach to evaluate the covariance matrix of received vector BS, and focus on a physical channel model where angular domain is partitioned into finite number directions, so-called angle arrival (AOA). scheme, asymptotic orthogonality fast fading coefficients between users BSs would be true only when BS...
Giai đoạn từ 2018 đến 2023, nền kinh tế Việt Nam đã trải qua một số thách thức và đồng thời có những bước tiến vững chắc. Tuy phải đối mặt với như biến đổi khí hậu, nợ công xấu trong các ngân hàng, cũng việc cải thiện quản lý tài chính công, nhưng tăng trưởng GDP của duy trì ở mức cao, thường khoảng 6-7% mỗi năm. tiếp tục thu hút lượng lớn vốn đầu tư nước ngoài, đặc biệt là nhà Trung Quốc, Hàn Quốc Nhật Bản. Các khu nghiệp cụ thể được phát triển để tư. Sự tạo ra nhiều cơ hội làm mới sống cho...
Increasing the linear modulation range
Terahertz (THz) frequency technology holds great promise for enabling high data rates and low latency, essential manufacturing applications within Industry 4.0. To achieve these, beam training is necessary to enable MIMO communications without the need explicit channel state information (CSI). In this context, Multi-Armed Bandit (MAB) algorithms are able facilitate online learning decision-making in training, eliminating necessity extensive offline collection. paper, we introduce three...
Bài viết này nghiên cứu mối quan hệ giữa đa dạng giới tính và hiệu quả hoạt động của các công ty niêm yết trên thị trường chứng khoán ở Việt Nam. Nghiên sử dụng dữ liệu bảng cân bằng thu thập từ báo cáo tài chính sau kiểm toán phi Nam giai đoạn 2012-2023. Dựa lý thuyết đại diện, với việc đo lường thông qua tỷ lệ nữ tham gia hội đồng quản trị, phát hiện tích cực có ý nghĩa trong trị ty. Kết là hữu ích nhà làm sách, doanh nghiệp xây dựng cơ cấu hỗ trợ sự tăng trưởng cũng như hướng tới triển bền vững.
Internet enabled body area networks (BANs) will form a core part of future Ambient Assisted Living (AAL) technology. In BAN based AAL applications, due to the dynamic nature human behavior, off-body channel can be prone deep fading phenomenon caused by shadowing and multipath fading. This emphasizes necessity power control mechanism, especially in applications where battery replacement is difficult or undesirable. To that end, we present novel practical adaptive protocol on knowledge...
In this paper, we analyze a resource allocation method for device-to-device (D2D) communication underlaying cellular networks. A novel algorithm is proposed to form number of D2D groups such that group pairs can reuse the downlink one user (CU) while guaranting SINR at both receivers and CUs.
The covid-19 pandemic has had far-reaching consequences for the global economy, affecting many financial market components, including gold market. This study compares India and Vietnam based on data several indicators such as daily new infections, cumulative totals, deaths from covid-19, total due to price volatility. study's findings are observational first confirmed case of until March 11-2022, demonstrating that have opposite effect prices in Vietnam. examined (used a dummy variable...