Communication Technology Research Research Articles

Research and Application of Visible Light Communication Technology

In recent years, the rapid growth of mobile devices and wireless services has created a significant demand for RF-based technologies. Among the various emerging wireless communication forms, Visible Light Communications (VLC) stands out as a potentially transformative technology that not only complements RF communications but also introduces innovative possibilities for mobile wireless device applications. VLC utilizes visible light for communication, offering high-speed data transmission, improved energy efficiency, and enhanced communication security and privacy. This article thoroughly explores VLC, discussing its core concepts, fundamental principles, and essential technologies that define this rapidly developing field. By providing insights into the intricacies of VLC, readers can gain a better understanding of its mechanisms and capabilities. The exploration also extends to elucidating the diverse application scenarios where VLC can be effectively applied, showcasing its versatility and potential impact on various sectors. This comprehensive survey not only presents the current state of VLC but also predicts future development trends, providing a forward-looking perspective on the evolution of this technology. As the demand for efficient and secure wireless communications continues to rise, VLC emerges as a promising frontier, poised to play a pivotal role in shaping the landscape of communication technologies in the years to come.

Key value indicators: A framework for values-driven next-generation ICT solutions

Technology design, development and evaluation has long been driven by functional performance optimization and estimated market opportunities. Today, societal challenges and sustainable development goals are calling for a paradigm shift towards aligning technology development with a values-based consideration and re-prioritization of different ecological, social and economic outcomes. Values have been identified as key drivers of Information and Communication Technology (ICT) research. They are taken into account in the development of 6G networks, e.g. in the context of EU research funding frameworks, but a clear conceptual framework for values-driven development is still missing. This paper deals with the concept of Key Value Indicators (KVIs) as a method for analyzing the values-related outcomes stemming from ICT developments. Leveraging established definitions, frameworks and value identification methods, the paper proposes a structured KVI framework tailored to the ICT research and development (R&D) sector. The proposed framework comprises five steps, starting from the use case-related identification of values to the assessment of value outcomes. ICT-enabled smart cities are analyzed as an example use case to illustrate how this framework can be applied. The KVI framework is aimed to be a useful tool for the ICT research sector (to be used - primarily but not exclusively - by ICT research projects and programs) to address social challenges in technology design and development phases and to identify and estimate value outcomes from technology use. In addition, the proposed framework aims to assist policy makers to establish value-related targets and set requirements and conditions for ICT developments.

Approach to the theoretical foundation of the elements that intervene in communication interactivity in online classes

The purpose of this work is to build the theoretical foundation that guides the construction of the elements that intervene in the communication development of virtual classes. For the development of this research, a bibliographic review has been carried out, which has served as a basis for the theoretical framework of the research. A type of qualitative information was followed for the argumentative design of the internal and external elements that intervene in online educational communicational interactivity. This article constitutes a preview of the conceptual contributions to the Communication and Information Technologies research line of the Tecnológico Universitario Espíritu Santo and responds to a result of the research project: Post-Pandemic Virtual Communicational Learning Environments at the Tecnológico Universitario Espíritu Santo and Unidad Educativa Letras y Vida

Health ICTs and transgender health equity: a research agenda

ABSTRACT While research in healthcare service provision for transgender and gender diverse (TGD) people has seen rapid progress, health information communication technologies (health ICTs) research on this key population is falling behind. Blindspots in the literature risk perpetuating systemic barriers to healthcare access. This critical, cross-disciplinary literature review applies a health equity perspective alongside the lenses of structural violence and intersectionality. It presents a research agenda for building systematic knowledge in the Information Systems (IS) and Information Communication Technologies for Development (ICT4D) fields, identifying and addressing blindspots that risk amplifying existing inequities for TGD people. It makes theoretical contributions to discourse on health equity and ICTs by exploring how health ICTs shape the inclusion and exclusion of marginalized communities. In facilitating a scholarly and practice-based understanding of the effect of health ICTs on TGD health provision, it paves the way for these fields to make significant contributions to global health equity.

Theorizing ‘The Gap’ Twenty Years Later: Global Development, Design, and Speculative Ethics in Edtech Research

AbstractDrawing from Feminist Science and Technology Studies, this paper explores how we might revisit and recuperate past academic research projects, theories, and relationships to design futures that matter for social good. As context, I begin by outlining a decade of research in Information and Communication Technologies for Development (ICTD), which linked the United Nations Millennium Development Goals to innovations in telecommunications and computing. I then introduce the ‘theory of design-reality gaps’ that was proposed by Heeks to study ’wicked problems’ in this domain (2002). I revisit two strands of research that I carried out in relation to the ‘design-reality gap’. The first involved an ethnographic study of a participatory mobile phone based learning intervention for Kenyan health workers. I argued that instead of a singular ‘gap’ explained by geographic, sociocultural, or economic ‘divides’, there was a messy entanglement, constituted by sociomaterial practices that enacted a multiplicity (Mol in The body multiple: Ontology in medical practice, Duke University Press, 2002) of desired futures. In the second strand, I attempted to care for the practices that were abandoned by the learning intervention when one kind of justice was prioritized over others. This explored how the research could be more ‘speculative’ and how this ‘speculative commitment’ could generate new ethical questions and logics for living with technology (Puig de la Bellacasa in Social Studies of Science, 41(1), 85–106, 2011 and Matters of care: Speculative ethics in more than human worlds, University of Minnesota Press, 2017). I argue that approaching the design-reality ‘gap’ as a multiplicity instead of a void can support Tuck’s call for educational interventions that turn away from damage oriented theories of change to ones based on desire – approaching difference not as a lack, but as an ever-growing assemblage (2009). Tinkering with the original Heeks model, I conclude that in the postdigital era, the design-reality gap is now better-understood as a fluid space of multiplicities, and what is arguably most pressing is to study the differences in competing objectives and values, rather than disparities in information and technology.

Application and Research of 5G Communication Technology in Intelligent Coal Mine

In recent years science and technology in China has been developing rapidly and various industries have begun to undergo changes due to the development. Coal mining is a highly dangerous industry. Therefore proper technology is needed to improve the quality and safety of coal mining. The application of 5G communication technology allowed for the development of intelligent coal mines with broad application prospects and research value. This article aims to thoroughly analyze the application of 5G communication technology in intelligent coal mines considering the practical context. The goal is to offer insights and guidance for future endeavors in this domain.

A 50 Gb/s PAM-4 EAM driver in 28-nm CMOS technology

With the rapid development of Ethernet, the research of new high-speed optical communication technology is getting more and more attention. The external modulation technique is unaffected by frequency chirp makes the fiber optic system more stable. Meanwhile, the small driving voltage and efficient area of the electro-absorption optical modulator make the electro-absorption modulator(EAM) driver more widely used. The signal emission by the optical module is critically dependent on the performance of the EAM driver. This article presents a 50 Gb/s four pulse amplitude modulation(PAM-4) EAM driver in 28-nm CMOS. The proposed EAM driver consists of a continuous-time linear equalizer (CTLE), a variable gain amplifier (VGA), a preamp, and an output stage circuit. Linearity is enhanced by using inverter-based structures in the proposed CTLE, VGA, and preamp. The source-degenerated resistors are adopted by CTLE and VGA to provide equalization and improve linearity. Additionally, shunt peaking inductors are used to extend the bandwidth. To provide a large output swing, the output stage adopts the cascode structure. Measured results demonstrate that: the EAM driver has 23.12 GHz bandwidth and 2.14 V output voltage swing at 50-Gb/s. The EAM driver consumes 226 mW power while having an active area of 0.26 mm2.

Bridging the theory-practice gap: a critical reflection on information and communication technology research

Purpose Through critically reflecting on existing research on information and communication technology (ICT) in hospitality, the purpose of this study is to propose recommendations for future research to further narrow the theory-practice gap. Design/methodology/approach Personal experiences along with evidence from the literature provide a foundation for discussion, which is further enriched by integrating industry practitioners’ points of view. Findings Single-perspective and technology adoption studies have dominated ICT research in the hospitality literature. Technology effectiveness has often been measured indirectly. Oversimplifying technological issues has limited the generalizability of research findings. Research limitations/implications Future studies are suggested to go beyond examining technology adoption, embrace multi-perspective approaches and incorporate a wider range of situational and contextual factors. Originality/value Through a unique perspective, this study highlights the limitations of previous ICT research in the hospitality literature and provides suggestions for future research to better meet the needs of practitioners. The arguments presented are not purely from an academic standpoint, as they have been endorsed by senior industry executives.

Scenario-specific radio propagation simulation from LiDAR point cloud data for smart office scenario

Recently, the cyber-physical-system (CPS) has attracted great interest in the information and communications technology (ICT) research field for the virtual test of wireless communication systems. Since the performance of wireless communication significantly depends on the radio propagation channel characteristics, the development of accurate radio propagation simulation technology becomes essential for the purpose. This paper proposed the scenario-specific radio propagation simulation method from LiDAR point cloud data. By the continuous environment measurement by LiDAR, the positions of dynamic objects like pedestrians are tracked, as well as the site-specific propagation environment characteristics and their influences are taken into the simulation. For performance evaluation, the radio propagation measurement was conducted in the 28 GHz band in an indoor office. The result showed a significant improvement in the RMSE of received power prediction. The proposed method will be utilized for the radio channel emulation in the CPS.

Internet of Things (IoT) in digital agriculture: An overview

AbstractClimate change, land degradation, and limited land and water resources have challenged our ability to meet the food demand of a rapidly growing population. To tackle this challenge, modern agricultural systems are relying on new technologies like the Internet of Things (IoT) to improve agricultural productivity and resource use efficiency. Although IoT has gained considerable attention in the last few years, the key concepts of IoT and their applicability across different domains of agriculture are still new to many researchers, practitioners, managers, and policymakers. In this paper, we provide a comprehensive review of the use of different IoT platforms, wireless sensor networks, and other associated technologies like remote sensing, cloud computing, and big data analytics in digital agriculture. The review also explores the use of communication technologies, microcontrollers, and machine learning in smart irrigation and decision support systems. The necessity of interoperability (data transfer and communication without human interference) among devices is discussed in detail with regard to facilitating and exchanging agricultural data more effectively. The discussion also includes opportunities and challenges in standardizing IoT; developing energy‐efficient and affordable technologies; and improving data collection, transfer, storage, processing, security, anonymity, and privacy. This paper further calls for collaborative research in sensor and communication technologies in the agricultural sector.

Information and Communication Technology Applications in Construction Organizations: a Scientometric Review

The application and research of Information and Communication Technology has exponentially grown in construction and is of a multidiscipline nature. However, there is a lack of investigation into progression of ICT research topics within the construction disciplines and the knowledge domain has not been deeply explored. This research fills this gap using a scientometric review of construction ICT research. Relevant literature from reputable sources are reviewed and classified to create a comprehensive framework for ICT application in construction. Accordingly, a manual review of research titles, as well as abstracts, was conducted. Accordingly, five analysis steps were performed including “Journals Selection, Publication Type and Name” “Citation Analysis”, “Keywords Co-Occurrence Network”, “Cluster Analysis”, and “Keyword time analysis”. A total of 376 research selected for burst detection, co-citation analysis, cluster analysis, keyword co-releases, and ICT application analysis in order to provide a comprehensive knowledge summary of the ICT application in the construction industry. Automation in Construction and Journal of Management in Engineering were identified as the major journals associated with research on the ICT application in the construction industry. Based on the research method, the articles used for scientometric analysis were only selected from Scopus and Web of Science database. Moreover, the study mainly concentrated on the quantitative analysis in regard to articles emerging frequently the knowledge domain, and were used to indicate the trends, timelines and hot topics. This research explores the construction industry body of knowledge by classifying the existing ICT related research, evolutionary trend, providing current status, a comprehensive knowledge framework, and future directions.

Research on Pulse Power Wireless Communication Network Based on LoRa Technology

In this paper, the engineering of pulse power supply in electromagnetic launch technology is studied in depth, the advantages and disadvantages of optical fiber communication transmission currently used are analyzed, and then the requirements for data transmission of pulse power supply system are summarized, and several commonly used wireless communication technologies are analyzed and compared, such as ZigBee, LoRa, SigFox, NB IoT, 5G, etc. According to the comprehensive comparison of these technologies in transmission distance, rate, bandwidth, security, time delay, self built network and other aspects, the scheme of using LoRa wireless communication technology to replace optical fiber transmission is finally determined, and the LoRa wireless communication network construction, controller hardware circuit design, module software program, data transmission communication protocol, data encryption, data storage and other contents in the scheme are further designed in detail, It also predicts the further research and development of LoRa wireless communication technology in pulse power supply.

Overview of Application and Research of New Power System Communication Technology

Overview of Application and Research of New Power System Communication Technology

Nexus between Industry 4.0 and environmental sustainability: A Fourier panel bootstrap cointegration and causality analysis

The paper aims at investigation of the nexus between Industry 4.0 (I4.0) and environmental sustainability in addition to exploring the long-run and short-run effects of Industry 4.0 on CO2 emissions. For this end, energy consumption, internet and communication technology (ICT) exports, research and development (R&D), artificial intelligence (AI), ICT technology patents and bitcoin are taken as control variables of Industry 4.0 for a panel of 9 countries that contribute to 62% of the total CO2 emissions in the world. For this purpose, the paper follows two approaches. First, the paper proposes utilization of AI and ICT technology patents, technology-related R&Ds and ICT exports as variables of I4.0 in addition to investigating the effects of economic growth, energy consumption and bitcoin. Second, to control structural changes and nonlinearity in the cointegrating relations and existence of degenerate cointegration, Fourier panel bootstrap autoregressive distributed lag model (FPBARDL) is utilized. Afterwards, FPBARDL based long, short and strong causality analyses are conducted. The empirical findings revealed positive impacts of all I4.0-related variables on emissions in the long-run. Though I4.0 related AI and ICT innovation has no direct effect in the short-run, its effects are determined through increased energy consumption towards emissions. The strong positive effects of energy consumption and positive effects of economic growth, ICT exports and R&D are observed both in the short and long-run. In addition to positive impacts of I4.0 on environment, the findings favor insufficiency of policies focusing on lowering emissions in I4.0 context.Policy recommendations include strong commitment to energy efficiency and renewable energies and trade policies with environmental concerns.

Application Research of Computer Communication Technology in the Development of Artificial Intelligence

With the advent of the 5G communication era, people's life and work are increasingly dependent on computer network information technology. The development and application of artificial intelligence (AI) technology has laid a solid foundation for the security of computer network. One technology plays an indispensable role in the development of this field, that is, computer communication Technology (CCT). Its core function is to support data, collect, analyze and process a large amount of information, and output scientific and reasonable calculation results. As one of the frontier directions, the application range of multi-agent system is more and more extensive. Compared with traditional software systems, multi-agent systems can provide more effective means to solve complex scientific and engineering problems. This paper focuses on the application of the trusted alliance technology of multi-agent system in the context of the Internet of Things, defines the parameters and conditions of some trusted alliances of the intelligent terminal of the Internet of Things, and preliminarily discusses the negotiation strategy of the process of strengthening the alliance. The organic integration of AI technology and computer network technology is a new direction of the intelligent development exploration and research of network technology. This paper studies and analyzes the application of AI in computer network technology in the age of big data.

Research Progress of Water–Laser Compound Machining Technology

As an emerging industry, laser processing technology has developed rapidly and has gradually become a key technology in transforming traditional manufacturing. It has been widely used in various fields such as industrial production, communication technology, information processing, health care, military, and scientific research. The application and development of laser processing technology is restricted by thermal damage and the processing residues existing in traditional laser processing. However, water laser compound machining can better solve the above-mentioned problems. In water laser compound machining , heat and byproducts can be absorbed and taken away by water to improve processing quality. This paper expounds and analyzes the principles and research of three popular water laser compound machining methods (water-guided laser processing, underwater laser processing and water-jet-assisted laser processing). Furthermore, this paper analyzes the technical difficulties in water laser compound machining and looks forward to the future development trends of this technology.

КОНСТРУЮВАННЯ НОВИННОЇ РЕАЛЬНОСТІ В МАСМЕДІА

<p><strong><em>The purpose</em></strong><em> of the research is to characterize the construction of news reality in the information environment.</em></p><p><strong><em>Research methodology.</em></strong><em> The methodological basis of the study is the empirical method – we determined the news content, we characterized the researched news content on information platforms using the analysis method, the content of the news was singled out with the help of mass communication using the comparison method, where information penetrates into all spheres of social life, the observation method to influence the audience as a consumer of mass information. </em></p><p><strong><em>Results.</em></strong><em> News journalism in the modern information space is in the process of constructing reality, since all events taking place in the world receive an objective and unbiased reflection in the mass media. Quite naturally there is the question: what are the criteria that journalists use to determine the correctness of writing news, what should be transferred from the status of an event to the status of news , and which ones are not. If this issue remains understudied in both social communication theory and applied social communication technology research, there is a tacit consensus. Therefore, at the time of rapid development of online platforms, mass</em><em> </em><em>media should improve their news products for high-quality and successful promotion. Thus, the considered professional tradition of selection and presentation of news is paradoxically proportional to the imagination with the lens of ectivism and intuitionism.</em></p><p><strong><em>Novelty.</em></strong><em> The directions of construction of news reality are outlined, the advantages and disadvantages of news platforms are determined, and a comparative characterization of the essence of the genre-forming news tools, which serves for prompt, reliable, objective, balanced display of events, is carried out.</em></p><p><strong><em>Practical meaning.</em></strong><em> The obtained results of research work can be used in the empirical-applied component for the training of young specialists in news, cross-media journalism and news agency journalism.</em></p><strong><em>Key words:</em></strong><em> news journalism, mass media, media, information society, genreology, audience.</em>

Heterogenous Networks: From Small Cells to 5G NR-U

With the exponential increase in mobile users, mobile data demand has grown tremendously. To meet these demands, cellular operators are constantly innovating to enhance the capacity of cellular systems. Consequently, operators have been reusing the licensed spectrum “spatially,” by deploying 4G/Long-term Evolution (LTE) small cells (e.g., Femto Cells) in the past. However, despite the use of small cells, the licensed spectrum will be unable to meet the consistently rising data traffic because of data-intensive applications such as augmented reality/virtual reality (AR/VR) and on-the-go high-definition video streaming. Applications such as AR/VR and online gaming not only place extreme data demands on the network but are also latency-critical. To meet the QoS guarantees, cellular operators have begun leveraging the unlicensed spectrum by coexisting with Wi-Fi in the 5 GHz band. The standardizing body Third Generation Partnership Project, has prescribed cellular standards for fair unlicensed coexistence with Wi-Fi, namely LTE Licensed Assisted Access (LAA), New Radio in unlicensed (NR-U), and NR in Millimeter. The rapid roll-out of LAA deployments in developed nations like the USA offers an opportunity to study and analyze the performance of unlicensed coexistence networks through real-world ground truth. Thus, this paper presents a high-level overview of past, present, and future of research in small cell and unlicensed coexistence communication technologies. It outlines the vision for future research work in the recently allocated unlicensed spectrum: The 6 GHz band, where the latest Wi-Fi standard, IEEE 802.11ax, will coexist with the latest cellular technology, 5G New Radio in unlicensed. At the end, we present a comparison of the performance between standards ranging from LTE to NR-U based on realistic assumptions.

Cultivating Ecological Literacy: A Critical Framework for Understanding and Addressing Mis‐ and Disinformation

ABSTRACTThis conceptual paper highlights limitations within existing approaches to mis and disinformation and offers a cross disciplinary approach that draws from social shaping of technology and critical informatics to explain and understand these complex informational phenomena. Different scholarly perspectives from policy, technical, and information literacy spheres, often narrowly focus on information practices of actors or components of the technical systems and policy frameworks undergirding these systems often their “locus of change”, or concept of the problem and solutions, do not acknowledge the interconnected complexities inherent to mis and disinformation. Our proposed conceptual intervention can be useful to the information science and technology research and teaching community as it offers opportunities to cultivate a complex form of what Milner and Phillips describe as “ecological literacy” to holistically understand the mis‐ and disinformation problem domain as an interconnected set of sociotechnical systems.

QUANTITATIVE ANALYSIS OF THE ACADEMIC DEVELOPMENT EVOLUTION KNOWLEDGE GRAPH OF MUSEUM DISPLAY DESIGN ORIENTED TO AUDIENCE'S PSYCHOLOGICAL EXPERIENCE

QUANTITATIVE ANALYSIS OF THE ACADEMIC DEVELOPMENT EVOLUTION KNOWLEDGE GRAPH OF MUSEUM DISPLAY DESIGN ORIENTED TO AUDIENCE'S PSYCHOLOGICAL EXPERIENCE