Article
Construction & Building Technology
Dayo Akindipe, Opeoluwa Wonuola Olawale, Richard Bujko
Summary: This study proposes a holistic framework for intelligent roadway lighting in small cities, using Harney Street in Laramie, Wyoming as a case study. The framework includes technical analysis, economic evaluation, and a public survey. It recommends a staggered pole arrangement with 21 streetlight units to optimize illuminance levels, and considers grid-only and hybrid options for energy sources. The study highlights the need for public-private partnerships in funding smart street lighting projects in small cities.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Yuxi Jiang, Yinghong Shuai, Xiaoliang He, Xing Wen, Liangliang Lou
Summary: The study proposed a traffic-adaptive street lighting scheme (TaSLC) to improve the performance of ISLs by extracting traffic parameters from vehicle and pedestrian behaviors and dimming streetlights accordingly, without incurring any additional costs.
IEEE SENSORS JOURNAL
(2021)
Article
Construction & Building Technology
F. Sanchez-Sutil, A. Cano-Ortega
Summary: This study proposes a system for controlling and monitoring street lights, utilizing the LoRa protocol, ABC optimization algorithm, and Firebase cloud platform for data transmission.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Energy & Fuels
Konrad Henryk Bachanek, Blanka Tundys, Tomasz Wisniewski, Ewa Puzio, Anna Marouskova
Summary: The article presents and analyzes the implementation of intelligent lighting in the context of smart energies and smart cities. LED lighting is highlighted as a key element for energy and cost savings, as well as increasing urban lighting efficiency. The case study method is used to forecast the development of LED lighting and emphasize its importance in building smart cities.
Article
Green & Sustainable Science & Technology
Sofia Boulmrharj, Mohamed Bakhouya, Mohammed Khaidar
Summary: This study assesses the techno-economic performance and greenhouse gas emissions of different hybrid system configurations for hydrogen and electricity production in three Moroccan cities. The results show that C2 has lower greenhouse gas emissions and can be economically profitable in mid-sized cities, while C1 is not economically profitable.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2023)
Article
Social Issues
Chun-Yao Huang, Chang-Kang Wu, Ping-Yu Liu
Summary: This study explores how mobile technology can assist visually-impaired individuals in crossing streets by introducing a smart accessible pedestrian signal system (SAPSS) developed and deployed in Taiwan. Two field tests with 19 visually-impaired end users helped refine the system, leading to its formal deployment in three cities in Taiwan based on positive feedback from the participants.
TECHNOLOGY IN SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jiaqi Wang, Haoyu Wang, Kedong Yin, Yunlong Zi
Summary: A tribo-induced color tuner has been developed for commercial lighting systems, utilizing TENG charging to achieve color oscillation without additional power supply for wireless environmental sensing. It also provides smart lighting for underwater photography with the best imaging quality.
Article
Computer Science, Hardware & Architecture
Mohammad Javad Kalani, Mahdi Kalani, Mehdi Salay Naderi, Gevork B. Gharehpetian
Summary: This study presents an innovative approach to energy management of LED light sources by incorporating sound levels. By using sound sensors to determine the activity level of the environment, the amount of light and energy consumption can be restricted when there is no or limited activity. The findings show that this method reduces energy consumption by over 40% when environmental activity is reduced.
COMPUTERS & ELECTRICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Shekar Viswanathan, Shamsullah Momand, Mohibullah Fruten, Alejandro Alcantar
Summary: The study developed a model combining technical and financial aspects to evaluate smart street lighting control systems, indicating significant energy and cost savings from its implementation. Based on collected data, through validation and analysis, the model was shown to be reliable and accurate.
Article
Computer Science, Information Systems
Jose-Luis Poza-Lujan, Juan-Jose Saenz-Penafiel, Juan-Luis Posadas-Yague, J. Alberto Conejero, Juan-Carlos Cano
Summary: Intelligent control of public lighting, involving a compromise between comfort, safety, and power consumption, is a challenging issue in smart city deployment. The proposed system uses presence sensors to detect pedestrians and adjust the light intensity of street lamps accordingly to provide a comfortable view of the street. The efficiency of the control system is evaluated using the ROC curve method to determine the optimal number of previous street lamps.
Article
Chemistry, Analytical
Antonino Quattrocchi, Francesco Martella, Valeria Lukaj, Rocco De Leo, Massimo Villari, Roberto Montanini
Summary: This paper proposes a low-cost system based on the Internet of Things for monitoring the structural behavior of street lighting poles in Smart Cities. The system collects previous structural information and offers secondary functionalities such as meteorological information. It also lays the foundations for a method to prevent pole collapses by describing the implementation phase and strategies of information technologies.
Article
Hospitality, Leisure, Sport & Tourism
Dimitrios Buhalis, Peter O'Connor, Rosanna Leung
Summary: This paper explores recent developments, themes, and issues within smart hospitality and provides a comprehensive research agenda. Smart hospitality introduces disruptive innovations and utilizes smart cities and smart tourism to establish agile business ecosystems. The study identifies the drivers of smart hospitality and the foundations that enable its development.
INTERNATIONAL JOURNAL OF CONTEMPORARY HOSPITALITY MANAGEMENT
(2023)
Article
Mathematics
Hanwei Liu, Wenchao Li, Huiling Cai, Qingcheng Lin, Xuefeng Li, Hui Xiao
Summary: In order to promote the development and construction of smart cities, this study proposed a 5G micro base station location model based on a smart street lighting system. The model considers the correlation and cooperativity between 5G micro base stations and mounted devices, and develops a universal system-level location selection index to achieve rational utilization of urban space site resources and intelligent linkage between subsystems. The results show that the model is effective for functional areas with different road network characteristics and provides practical, robust, effective, and accurate help for similar location selection problems.
Article
Remote Sensing
Shengyuan Zou, Le Wang
Summary: This study aims to map individual-level abandoned houses in urban areas using high-resolution remote sensing and Google Street View (GSV) images. The proposed method involves four steps, including validating the feasibility of three relevant remote sensing data, extracting discriminative features, applying decision-level fusion, and using a geographical random forests (GRF) model for improved predictions on GSV images. The results demonstrate the effectiveness and potential of this method in tackling the challenges of housing abandonment in shrinking cities.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Computer Science, Information Systems
Christian Cabrera, Siobhan Clarke
Summary: This article introduces a self-adaptive service model for smart cities that supports service discovery by adjusting the organization of service information according to city events. The results of tests conducted in simulated environments and a real IoT testbed show that the proposed model outperforms competitors when reactive adaptation is triggered by a specific event, but further research is needed for proactive adaptation. The testbed results also present the costs of the proposed model.
IEEE TRANSACTIONS ON SERVICES COMPUTING
(2022)
Article
Computer Science, Hardware & Architecture
Tim Daulby, Anand Savanth, Geoff Merrett, Alex S. Weddell
Summary: The article presents two schemes to reduce overheads by entering a sleep mode and utilizing DMA, showing significant increases in forward progress and reductions in overheads.
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Mahmoud Wagih, Alex S. Weddell, Steve Beeby
Summary: This article introduces a fully textile rectenna for ultralow-power applications with an efficiency of over 41.8%, which can charge a capacitor to 1V in a short time period.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Computer Science, Hardware & Architecture
Jie Zhan, Geoff Merrett, Alex S. Weddell
Summary: Batteryless energy-harvesting devices are crucial for a sustainable Internet of Things. By adding a small amount of energy storage, intermittent computing can significantly improve the forward progress. The developed energy storage sizing model accurately estimates the forward progress and shows promising results in both constant current supply and real-world photovoltaic sources.
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
(2022)
Article
Computer Science, Information Systems
Mahmoud Wagih, Geoffrey S. Hilton, Alex S. Weddell, Steve Beeby
Summary: This article evaluates the performance of mmWave-powered receivers and demonstrates the potential of wireless power transmission in wearable IoT applications. A broadband antenna is proposed, improving the wearable measured bandwidth compared to conventional patch antennas. The measured path gain shows that WPT at 26 GHz outperforms 2.4 GHz by 11 dB. Analytical evaluation of a rectenna array based on the proposed antenna shows up to 6.3x higher power reception potential.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Chemistry, Analytical
Mahmoud Wagih, Alex S. Weddell, Steve Beeby
Summary: Radio frequency identification (RFID) is an emerging wireless sensing technology that allows for multiple independent measurements or overcoming channel variations. This paper presents a dual-port/dual-integrated circuit (IC) RFID sensing tag based on a shared aperture dual-polarized microstrip antenna. The tag can be loaded with different sensors and demonstrates long read range and functionality as a battery-less wireless RFID light sensor.
Article
Computer Science, Hardware & Architecture
Sivert T. Sliper, William Wang, Nikos Nikoleris, Alex S. Weddell, Anand Savanth, Pranay Prabhat, Geoff V. Merrett
Summary: Intermittent computing is essential for the Internet of Things, allowing devices to perform computation using harvested energy when available. Nonvolatile memory is crucial for retaining computational progress across power cycles. MEMIC is a memory architecture designed for intermittent computing devices, combining volatile and nonvolatile memory efficiently to maximize computational performance per joule. MEMIC's instruction and data cache greatly reduce workload completion time under intermittent operation.
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Mahmoud Wagih, Abiodun Komolafe, Alex S. Weddell, Steve Beeby
Summary: This study proposes a dual-port antenna that can simultaneously harvest energy from near-field and far-field for wearable wireless power transmission. The antenna operates in high frequency and ultra-high frequency modes and can be used on different textile substrates. In experiments, the antenna maintains high efficiency and compactness.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2022)
Proceedings Paper
Energy & Fuels
Mahmoud Wagih, Nicholas Hillier, Alex S. Weddell, Steve Beeby
Summary: This paper investigates the use of ultra-miniaturized wire-type monopole antennas for energy harvesting applications, achieving wireless charging of a sensor node with improved efficiency and performance.
20TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2021)
(2021)
Article
Engineering, Electrical & Electronic
Mahmoud Wagih, Nicholas Hillier, Sheng Yong, Alex S. Weddell, Steve Beeby
Summary: This paper presents a high-efficiency compact textile-integrated energy harvesting and storage module for RF power transfer. The results show that the module has high efficiency and fast energy collection speed under different distances and human proximity conditions.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Mahmoud Wagih, Geoffrey S. Hilton, Alex S. Weddell, Steve Beeby
Summary: This paper introduces a dual-polarized four-port textile antenna/rectenna for wearable SWIPT applications, providing good energy harvesting and communication performance in different polarization directions, with high efficiency and good isolation properties.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Mahmoud Wagih, Geoffrey S. Hilton, Alex S. Weddell, Steve Beeby
Summary: Antennas and rectennas for self-powered body area networks have attracted attention for improving the sustainability of e-textiles. This paper introduces a novel fully-textile dual-port antenna for simultaneous wireless information and power transfer at 2.4 GHz, achieving high efficiency and performance. The proposed rectenna feed improves antenna isolation and achieves over 40% power conversion efficiency when placed directly on-body.
2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Mahmoud Wagih, Alex S. Weddell, Steve Beeby
Summary: The study explores the use of textile rectifiers to improve wearable rectennas' harvesting capabilities and examines the impact of reflectors on rectennas. A textile reflector can significantly increase the DC output of a rectenna by over 100% when placed 20 cm away from the body.
2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
(2021)
Review
Computer Science, Information Systems
Abiodun Komolafe, Bahareh Zaghari, Russel Torah, Alex S. Weddell, Hamideh Khanbareh, Zois Michail Tsikriteas, Mark Vousden, Mahmoud Wagih, Ulises Tronco Jurado, Junjie Shi, Sheng Yong, Sasikumar Arumugam, Yi Li, Kai Yang, Guillaume Savelli, Neil M. White, Steve Beeby
Summary: Wearable devices have a wide range of personalized applications in healthcare, entertainment, sports, and military, but the commercialization pathway of e-textiles is still uncertain due to challenges such as manufacturing technologies and incompatibility with traditional textile requirements.
Review
Engineering, Electrical & Electronic
Mahmoud Wagih, Alex S. Weddell, Steve Beeby
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2020)
Article
Engineering, Electrical & Electronic
Mahmoud Wagih, Alex S. Weddell, Steve Beeby
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2020)
Article
Computer Science, Hardware & Architecture
Jia Ke, Ying Wang, Mingyue Fan, Xiaojun Chen, Wenlong Zhang, Jianping Gou
Summary: This study integrates the emotional correlation analysis model and Self-organizing Map (SOM) to construct fine-grained user emotion vector based on review text and perform visual cluster analysis, which helps platform merchants quickly mine user clustering and characteristics.
COMPUTERS & ELECTRICAL ENGINEERING
(2024)
Article
Computer Science, Hardware & Architecture
Shi Qiu, Huping Ye, Xiaohan Liao, Benyue Zhang, Miao Zhang, Zimu Zeng
Summary: This paper proposes a multilevel-based algorithm for hyperspectral image interpretation, which achieves semantic segmentation through multidimensional information fusion, and introduces a context interpretation module to improve detection performance.
COMPUTERS & ELECTRICAL ENGINEERING
(2024)
Article
Computer Science, Hardware & Architecture
Jianteng Xu, Qingguo Bai, Zhiwen Li, Lili Zhao
Summary: This study constructs two optimization models for the omnichannel closed-loop supply chain by leveraging the combined power of leader-follower game and mean-variance theories. The focus is on analyzing the performance of manufacturers who distribute products through physical stores. The results show that the risk-averse attitude of the physical store has a positive impact on the overall system profitability, but if the introduced physical store belongs to another firm, total profit experiences a decline.
COMPUTERS & ELECTRICAL ENGINEERING
(2024)
Article
Computer Science, Hardware & Architecture
Jiahao Xiong, Weihua Ou, Zhonghua Liu, Jianping Gou, Wenjun Xiao, Haitao Liu
Summary: This paper proposes a novel remote photoplethysmography framework, named GraphPhys, which utilizes graph neural network to extract physiological signals and introduces Average Relative GraphConv for the task of remote physiological signal measurement. Experimental results show that the methods based on GraphPhys significantly outperform the original methods.
COMPUTERS & ELECTRICAL ENGINEERING
(2024)
Article
Computer Science, Hardware & Architecture
Zhiyao Tong, Yiyi Hu, Chi Jiang, Yin Zhang
Summary: The rise of illicit activities involving blockchain digital currencies has become a growing concern. In order to prevent illegal activities, this study combines financial risk control with machine learning to identify and predict the risks of users with poor credit. Experimental results demonstrate high performance in user financial credit analysis.
COMPUTERS & ELECTRICAL ENGINEERING
(2024)