Showing papers on "Mobile telephony published in 2023"

Predicting the antecedents of discontinuous usage intention of mobile government social media during public health emergencies

Abstract: Mobile government social media (GSM) plays a crucial role in facilitating government–citizen crisis communication and pandemic-related information delivery during public health emergencies. However, the lack of interaction and supervision, as well as deviations from the government's crisis communication position, can lead to some mobile GSM accounts gradually becoming “zombie” and “empty shell” accounts, resulting in high discontinuance rates. To investigate the underlying mechanism of mobile GSM discontinuous usage intention during public health emergencies, this study utilized hybrid structural equation modeling with an artificial neural network approach to estimate linear and non-linear relations. Data were collected from 748 Chinese mobile GSM users during the COVID-19 pandemic from August to September 2021. The findings revealed that perceived risks and barriers, information overload, information irrelevance, and social media fatigue significantly affected mobile GSM users' discontinuous usage intentions during public health emergencies, while perceived internet censorship and information equivocality did not. The hybrid method predicted mobile GSM discontinuous usage intention during public health emergencies with an accuracy of 87.9%. This study provides a holistic understanding of the antecedents of mobile GSM discontinuous usage intention during public health emergencies. Practical insights were presented for mobile GSM managers to avoid user churn during public health emergencies.

Analysis of mobile telecommunication and economic growth: evidence from ardl modeling

Abstract: This study examines the impact of mobile telephone on economic growth in Nigeria using ARDL (Autoregressive distributed lag) as methodology, with data from 2001-2017. The study reveals that mobile penetration had a positive impact on real GDP per capita. Which means as more people get access to mobile phones, GDP per capita is expected to grow. 10% increase in mobile penetration will lead to a 0.5 % increase in average annual GDP per capita. The study concludes that mobile telephony can aid sustainable economic development when used appropriately, with the full participation of all stakeholders, especially in a country like Nigeria. The intrinsic value of telecommunications lies not in easing communications and information, but in enabling growth and development. The study recommends that Consumer protection policies are needed to protect consumers from unfair calls and mobile data charges will ensure consumer get the value for their money, which will lead to increased consumption and investment in the industry.

5G Standalone Deployments Are on the Rise [Mobile Radio]

Abstract: One of the key decisions facing mobile operators worldwide is whether to launch 5G services in nonstandalone or standalone (SA) mode. The key difference is that the former relies upon existing 4G LTE network assets, such as an LTE evolved packet core, while the latter requires the deployment of a 5G core. Besides enabling new features, such as network slicing, 5G SA provides the full range of 5G capabilities in both public and private network deployment. This choice is not simply a matter of the availability of technology but also of spectrum, and we focus on the latter in the first reports of this “Mobile Radio” column.

Next generation 5G network

Abstract: A systematic and thorough report on the growth of the different wireless communication technologies for mobile technology is the main objective of this paper. The paper deals with mobile network development that helped to develop mobile and connectivity 5G technology. This paper also addressed the countries that use and test 5G technology, as well as the companies that undertook 5G growth. Fifth generation (5G) technology having all advanced wireless communication features that make 5G technologies more prominent for the future. This paper summarizes main technologies that can be utilized in futuristic 5G wireless communication equipment. Few examples are massive MIMO system as well as millimeter wave and communication from device to device. New directions for study will contribute to fundamental changes in the architecture of future cellular networks of fifth generation (5G). This article describes five developments that can results into changes into disruptive design of software as well as hardware: architecture based on device centric, communication between machine to machine, massive MIMO and millimeter wave, massive MIMO and smarter devices. In addition to 5G network prospective impact on 5G and the remaining research challenges, the key ideas for each technology are described.

Research on Multi-network Data Paths for 5G Mobile Multimedia

Abstract: With the development of mobile network technology, 5G mobile multimedia has greatly increased the application and popularity of mobile networks. In particular, the emergence of video, shopping and numerous mobile applications has facilitated the development of 5G mobile multimedia. At the same time, network users continue to pursue a better user experience and put forward better requirements for mobile network communications. 5G mobile communication networks have emerged to meet the needs of users and are an inevitable result and trend in the development of mobile communication networks. This paper introduces the definition of 5G network and multimedia technology, and provides a detailed introduction to multimedia technology, then introduces the multi-network data path of 5G multimedia, focusing on the exploration of the multi-network data path of 5G multimedia, reflecting the great impact of 5G technology on the development of science and technology. Explore the multi-network data path of 5G mobile multimedia for an effective path to seek a better development space.

Mobile Charging System Based on Coin Detection

Abstract: The demand for mobile phones is increasing day by day. Modern civilization would not function without cell phones, which are both the main source of entertainment and a lifeline for those in need. However, serious battery problems in mobile phones continue to be a serious problem for manufacturers. The given document describes an effective, affordable and ready-to-use solution for individuals to deal with this problem. The purpose of this paper is to install these vending machine-like facilities so that mobile phones can be charged very cheaply. This solution can be used in busy areas such as airports, markets, conference rooms and rest stops.

Localization by OSS and BSS Collected Data

Abstract: This paper proposes a solution for locating an individual using his/her Mobile Station / Mobile Equipment (MS / ME) number MSISDN or MS / ME details IMEI number, without making any addition or changes to the existing Mobile Network Operator (MNO) side or in the MS / ME itself. Our approach leverages the data that MNOs record for subscriber’s billing or for the network operations and maintenance purposes. Notably, our solution also allows for locating an individual without raising any suspicion, as it does not involve making voice calls or sending text messages that may alert him/her.

The Potential Energy of Context in Brand Communication Education Reform from the Perspective of Mobile Media

Abstract: Mobile media is profoundly changing the format of brand communication, and it also puts forward new requirements for the cultivation of brand communication talents. The reform of brand communication education is imperative. As a new entrance to mobile media, context provides a new opportunity for innovating education models and optimizing teaching paths. Based on the logic of mobile communication and the support of application technology, this study attempts to explore the potential energy of context in brand communication education reform from three aspects of context construction, context experience, and context mindset.

Exploring the Main Factors Affecting Mobile Phone Growth Rates in Indian States

Abstract: This paper investigates the growth of mobile telecommunications across the 23 circles (or states) in India for the period 2005–2021. From this study, we note that diffusion of mobile phones in Indian circles (or states) was influenced by the telecommunication policy of the Indian government. We noted that the growth rates of mobile telephony in all the 23 states followed a logistic model. From this, we inferred that some of the Indian states, with low GDP per capita income started rolling out mobile telephony operations later than states with high GDP per capita income, but could catch with the later. It also follows that states with more rural regions had more adoption of mobile telephony. From this study, we can inform policy makers and telecom providers that electrical power consumption, Human Development Index (HDI), Herfindahl Index (HHI) and proportion of rural to urban ratio do not form an important parameter for mobile growth.

Coverage and Capacity Measurements for 5G Voice Services

Abstract: With the development and evolution of 5G, Internet voice communication (Voice over IP, VoIP) has joined the competition of traditional mobile communication operators. However, the current VoNR commercialization faces problems such as imperfect network coverage and incomplete wireless enhancement function support, which puts forward high requirements for network planning. This paper elaborates on performance issues of VoNR enhanced functions, coverage and capacity, by testing VoNR voice quality with measurement experiments performed in the commercial mobile network. Moreover, feasibility analysis is carried out in view of the 5G frequency bands, and reference suggestions are provided for commercial use of VoNR.

Prospects and Technologies for Mobile Terahertz 6G Communications

Abstract: Prospects and challenges for mobile 6G communications using terahertz frequencies are discussed. For the first time, THz wireless communications with 15 Gbps to multiple mobile users employing a photonic-assisted beam steering antennas is experimentally demonstrated.

The x in xG

Abstract: The three articles in this special issue focus on the impact of mobile wireless communications networks (xG) on Information Technology and Systems. The “x” in xG is an expression of the rapid and impactful growth of mobile wireless communications networks. These generational increments are more than simply increasing network speed and connecting more devices. Each network generation in cellular and wireless communications has its own uniqueness that deserves rigorous and focused studies. This need is so because xG heralds an era of far- and wide-ranging services, applications, and systems that promise to change business, society, and government.

Hybrid Measurement and Post-Processing Method for Human RF Exposure Assessment of Mobile Radio Small-Cells

Abstract: Established methods for determining the electromagnetic field exposure of mobile radio small-cell base stations to the general public are currently based either on numerical far-field computation or on field strength measurement at selected evaluation points. It means that they are not capable of providing a realistic 3-dimensional near-and far-fleld evaluation of mobile radio small-cell base stations. For this reason, a promising hybrid exposure assessment approach – which combines antenna nearfield pattern measurements and numerical computations under varying environmental conditions – was specially adapted to small cells. While the conservatively determined measurement uncertainty of ± 3 dB is comparable to already established methods such as electric field probe measurement, the hybrid assessment offers novel possibilities in terms of flexibility. By moving exposure assessment into a virtual domain, complex installation scenarios or varying antenna operation parameters can typically be investigated within a simulation environment, so that complex measurement campaigns may be substituted by hybrid assessment.

Search for Unknown Events in Blind Zone using Multiple Autonomous Mobile Systems with Mobile Sensing Cluster

Abstract: An approach using a mobile sensing cluster has been proposed for search tasks such as damage assessment and rescue operations in a disaster. It dynamically forms and changes the swarms composed by multiple autonomous mobile systems that search for and capture unknown events. This mobile sensing cluster assumes that each autonomous mobile systems can acquire physical information such as radio waves emitted from the event. However, in a real environment, when autonomous mobile systems in a swarm are located far from events, they may be located in a blind zone where they cannot detect physical information emitted from the event. Therefore, a mobile sensing cluster cannot work in such blind zones. In this paper, we propose a radial spread method and an algebraic spiral method as way to search for the physical information from events in the blind zone, prior to implementing the mobile sensing cluster, and show the effectiveness of the algebraic spiral method.

D2D Communication-Based Salvage Transmission Scheme for Communication Disturbance in 5G Networks

Abstract: This study proposes a salvage transmission (ST) scheme for 5G networks using device-to-device (D2D) communication. In mobile networks, communication is disabled when issues emerge in the core network or base station of the operator. To address this problem, the proposed scheme provides mobile communication services via D2D communication to user equipment (UE) that cannot use cellular networks. The users of an operator that is unable to provide service due to communication failure transmit signal using D2D communication with the closest UE of another operator. This ST scheme enables the mitigation of communication failures. In addition, this study introduced the basic protocols of ST with Wi-Fi Direct (IEEE 802.11) and 5G networks. Furthermore, we verified the effectiveness of the ST scheme in the case of communication failures via a simulation study.

Reconfigurable Intelligent Surface for mmWave Mobile Communications: What If LoS Path Exists?

Abstract: Reconfigurable intelligent surface (RIS) has been widely discussed owing to its potential in enhancing the communication performance in a low-cost and energy efficient manner. The existing research on RIS-assisted channel modeling is mainly based on the assumption of obstructed line-of-sight (LoS) path between the transceivers. However, what if the LoS path (re)appears in RIS-assisted mobile communications? This letter aims at answering this question by developing a novel non-stationary channel model for RIS auxiliary millimeter wave (mmWave) mobile systems in the presence of alternately disappearing and reappearing LoS path. Based on the proposed channel model, a transmission mode switch scheme at a base station (BS) is developed based on the time-varying location of the receiver. The mapping relationship between BS transmission mode and receiver location is derived. Numerical results are provided to verify our analysis.

Mobile Communications in Japan

Abstract: The fostering of active communication on social networking services to revitalize the local community requires the proliferation of mobile communication terminals (MCTs) and the improvement of the communication environment. In this chapter, we outline the configuration and usage of mobile communication networks that are necessary for obtaining and sharing information in real space. We begin by revisiting the history of mobile communication terminals and mobile networks, primarily focusing on the history of Japan. Next, we introduce cloud networks and mobile sensing, which are feasible mainly because of the development of MCTs and mobile networks. Subsequently, we introduce certain recent applications enabled by MCTs and mobile networks that revitalize the local community.

Design and Evaluation of a Virtual Assistant for improving Awareness in Mobile Messaging

Abstract: Mobile messaging suffers from the lack of effective communication cues that help people infer the availability of others, like in face-to-face communication. My research focuses on designing, implementing, and evaluating an agent that can communicate unavailability to message senders. The design encompasses three phases (1) user modeling – understanding the recipient’s state; (2) preference modeling – understanding both recipient and sender preferences; (3) learning and adaptability – adjusting self-behavior or appropriating the agent to accomplish desired behavior. My dissertation research explores what factors are important in this design and how we can empower control back to users through user-agent interaction.

Study of Cluster-Based D2D Communication in Next Generation Mobile Network for the Post-Disaster Response

Abstract: There are many emerging technologies introduced by the next-generation mobile network (5G), which are very promising for the emergency communication network. Device to Device (D2D) communication is one of the significant adoptions in this 5G network. In D2D communication, mobile devices can communicate with other mobile devices without any help from a Base Station (BS). In addition, it also does not depend on the core switching for routing the traffic. This independent communication feature is one of the critical values for emergency communication when infrastructure is damaged by a natural dis-aster or human-made disaster. Moreover, clustering-based multi-hop communication provides the communication connection in the disaster-affected people and can enhance the coverage area. In this paper, we analyse and quantify the performance of cluster-based D2D communication in 5G when the existing infrastructure fails in a disaster in a salable format. The analytical parameter is based on the outage probability, Coverage area and QoS which are essential matrices for any emergency communication network.

Thermal radiation mode: A deployment perspective for 5G New Radio

Abstract: The 5G New Radio (NR) technology is under a standardization process by the 3rd Generation Partnership Project to provide an outline for a new radio interface for the next generation of cellular networks. The aims of 5G networks include not only providing greater capacity and coverage but also supporting advanced services, such as enhanced mobile broadband, ultrareliable low-latency communication (URLLC), and massive machine type communication.

Search for Unknown Events in Blind Zone using Multiple Autonomous Mobile Systems with Mobile Sensing Cluster

Abstract: An approach using a mobile sensing cluster has been proposed for search tasks such as damage assessment and rescue operations in a disaster. It dynamically forms and changes the swarms composed by multiple autonomous mobile systems that search for and capture unknown events. This mobile sensing cluster assumes that each autonomous mobile systems can acquire physical information such as radio waves emitted from the event. However, in a real environment, when autonomous mobile systems in a swarm are located far from events, they may be located in a blind zone where they cannot detect physical information emitted from the event. Therefore, a mobile sensing cluster cannot work in such blind zones. In this paper, we propose a radial spread method and an algebraic spiral method as way to search for the physical information from events in the blind zone, prior to implementing the mobile sensing cluster, and show the effectiveness of the algebraic spiral method.

1.4 5G Drives Exponential Increase in Processing Needs Across all Industries

Abstract: The extreme development of semiconductor-based compute technologies has not escaped anyone but the fact that mobile communications has followed a similar trajectory may be less obvious to most. Over five generations of mobile communications, data rates, and capacity has improved with more than six orders-of-magnitude, and this trend shows no signs of weakening. Mobile communications equipment (both infrastructure and devices) is among the most complex and advanced electronics produced.

Communication Options for Mobile Connectivity at the SKA Project Construction Camp

Abstract: The Square Kilometre Array (SKA) astronomical telescope project is one of the biggest scientific projects internationally. It currently consists of 73 telescopes at a site in the arid and remote part of South Africa. The number of telescopes is scheduled to be expanded to 199 in the future. They are highly sensitive and Radio Frequency Interference (RFI) is a constant threat. Construction on the next phase of the project requires a construction camp housing 280 people for the next 2.5 years. The position of the camp is relatively close to the telescope core area. Due to RFI regulations, no emissive device including mobile phones, may be used in the vicinity of the telescope array. Such usage cannot be practically banned for such a long time, as it is required for normal personal communications and business. A controlled and known environment, might be a better alternative and this paper documents some investigations in this regard. It was found that both 4G type Femtocell and WiFi accessibility are feasible, but with restrictions.

A Comprehensive Survey on Recent Advances in 5G Networks and Mobile Systems

Abstract: The Fifth Generation (5G) of network has great advancement from other network evolutions in terms of features, flexibility, high-speed internet, quick communication, and the capacity to connect to new enterprises. However, setting up the infrastructure for the 5G network requires more cell towers and higher frequencies such as 6GHz to 100GHz and millimeter waves (MMW), which results in increased radiation emissions. This article explains the methods that have been discovered as well as some new, innovative approaches to the radiation reduction findings. This study measures the radiation based on the parameters like overall power consumption, radiation frequency and the consequences of exposure. The studies that are now available is not offering enough data to make a thorough safety evaluation of thermal impact. This study performs more investigation and study to reveal the additional aspects, including millimeter wave, mobile edge computing, a variety of antenna technology, machine learning, radioactivity, radiation types, and radiation effects. The main purpose of this research study is to highlight the recent researcher advancements in the 5G mobile system, gadgets, and radiation effects, as well as future research goals.

Satellite Wi-Fi Terminal for Post-Disaster Emergency Communication Management

Abstract: Post disaster Emergency communication in partly functional or completely isolated scenarios requires a solution that is autonomous and resilient to network vulnerabilities due to both man-made and natural disasters. This paper presents the design of Wi-Fi based Mobile Satellite Service (MSS) terminal and the application developed to provide GSM connectivity for audio calls and text messaging for smartphone users in remote areas with intermittent and/or weak GSM signals or even with completely disrupted terrestrial connectivity. The operational features that incorporate automatic beam selection and enable re- routing of traffic from terrestrial through satellite network for inter-networking of technologies have been highlighted. The terminal can be used as a hot-spot by agencies coordinating relief measures for the trapped population.

PhD Forum Abstract: Cooperative Problem-Solving with Systems of Constrained Mobile Agents

Abstract: Cooperative mobile robot systems have great potential to solve real-world problems but are, in practice, limited by their physical capabilities, the environment in which they operate, and the technology available to them. My research investigates how communication, localization, sensing, mobility, and computation constraints affect the performance of mobile agent systems. In this extended abstract, I focus on two fundamental problems: delivery and dispersed computing, and discuss recent contributions to the literature, as well as our ongoing work.