Role Of Telecommunications Research Articles

Designing Community Complaints and Disaster Reporting Application to Babinsa Based on IOS

The role of telecommunications in facilitating communication and information exchange is very important, especially in emergencies such as natural disasters and unexpected events in the community. The application of mobile technologies such as apps is an alternative to improve response and address such issues. Mobile technology allows people to easily report disaster events or security issues through apps or short message services. The application of this technology supports faster communication between the community and Babinsa. Communities can quickly submit reports, convey important information, and share photos or videos as evidence of events. The reporting application is an implementation of mobile technology that can be more efficient in responding to reports and taking the necessary actions based on the information received to facilitate two-way communication between officers and the community. This research was conducted to develop an application that can facilitate the community and babinsa in responding to an event more efficiently, the results of this development prove that the application has an efficiency level of around 75% and also the learnability level reaches 80% which indicates that the application is ready to be launched to the general public and can be easily used for all groups.

All-dielectric metaoptics for the compact generation of double-ring perfect vector beams

Abstract Perfect vortices, whose ring profile is independent of the topological charge, play a key role in telecommunications and particle micro-manipulation. In this work, we report the compact generation of a new kind of double-ring perfect vortices, called double-ring perfect vector beams, by exploiting dual-functional silicon metaoptics. In particular, we develop and test a new paradigm to generate those beams with the possibility of selecting different topological charges between the two rings. The generated beams are characterized through a filtering method, proving that the two rings have a vectorial nature with the same magnitude and either the same or different topological charges. Their unique properties suggest promising applications for optical tweezing and manipulation of low refractive-index particles, trapping of cold atoms, and high-capacity communications.

An active straight waveguide polarization rotator in single crystal thin film barium titanate-on-insulator

Electro-optic materials play an essential role in telecommunications. In active devices like Mach–Zehnder modulators, typically the diagonal Pockels coefficients are employed to induce an optical phase shift through electrical tuning of the refractive index along an optic axis. On the other hand, waveguide polarization rotators are usually passive devices where asymmetric structures or specially designed couplers are used. In this Letter, we exploit off diagonal Pockels coefficients to demonstrate an active straight waveguide polarization rotator using a c-axis single crystal thin film barium titanate (BTO)-on-insulator, with a maximum power conversion of ∼30% from the input TE (or TM) mode into its orthogonal mode observed. The device is switched on or off through an applied voltage and is demonstrated in a simple straight waveguide. A TM output extinction ratio of 26.1 dB is achieved in the device with a TE input. The r51 value in the BTO thin film is estimated to be around 600 pm/V. This work adds a different polarization rotation scheme to the active photonics family.

Role of Telecommunication and Telecom Industry in Indian Economy

Role of Telecommunication and Telecom Industry in Indian Economy

DRLLA: Deep Reinforcement Learning for Link Adaptation

Link adaptation (LA) matches transmission parameters to conditions on the radio link, and therefore plays a major role in telecommunications. Improving LA is within the requirements for next-generation mobile telecommunication systems, and by refining link adaptation, a higher channel efficiency can be achieved (i.e., an increased data rate thanks to lower required bandwidth). Furthermore, by replacing traditional LA algorithms, radio transmission systems can better adapt themselves to a dynamic environment. There are several drawbacks to current state-of-the-art approaches, including predefined and static decision boundaries or relying on a single, low-dimensional metric. Nowadays, a broadly used approach to handle a variety of related input variables is a neural network (NN). NNs are able to make use of multiple inputs, and when combined with reinforcement learning (RL), the so-called deep reinforcement learning (DRL) approach emerges. Using DRL, more complex parameter relationships can be considered in order to recommend the modulation and coding scheme (MCS) used in LA. Hence, this work examines the potential of DRL and includes experiments on different channels. The main contribution of this work lies in using DRL algorithms for LA, optimized for throughput based on a subcarrier observation matrix and a packet success rate feedback system. We apply Natural Actor-Critic (NAC) and Proximal Policy Optimization (PPO) algorithms on simulated channels with a subsequent feasibility study on a prerecorded real-world channel. Empirical results produced by experiments on the examined channels hint that Deep Reinforcement Learning for Link Adaptation (DRLLA) offers good performance indicated by a promising data rate on the additive white Gaussian noise (AWGN) channel, the non-line-of-sight (NLOS) channel, and a prerecorded real-world channel. No matter the channel impairment, the agent is able to respond to changing signal-to-interference-plus-noise-ratio (SINR) levels, as exhibited by expected changes in the effective data rate.

Silver Nanoplate Composites as Nonlinear Saturable Absorbers for a Q-Switched Laser

Metal nanomaterials have promising applications in ultrafast photonics due to their broadband operation, large third-order nonlinear susceptibility, and ultrafast recovery time. We realized a Q-switched pulsed erbium-doped fiber laser based on a silver nanoplate polyvinyl alcohol film as a saturable absorber. This film, with a modulation depth of 15.7%, was integrated into a fiber laser by means of a sandwich structure. We obtained Q-switched pulses in the 1.5-μm band, which plays an important role in telecommunications and atmospheric detection. Stable Q-switched pulses were obtained at the pump power of 135 mW, with a single pulse energy of 33.8 nJ, a pulse width of 2.3 μs, a repetition rate of 62.4 kHz, and a signal-to-noise ratio of about 45 dB. When increasing the pump power up to a maximum value of 246 mW, the maximum single pulse energy of 57.8 nJ was achieved. This study first demonstrates the potential of silver nanoplates as saturable absorbers in generating stable laser pulses with high energy.

Industrialization in Sub-Saharan Africa: the role of telecommunications, electricity and aid to development

Industrialization in Sub-Saharan Africa: the role of telecommunications, electricity and aid to development

Investigation on time-dependent behavior of resistivity in high-resistivity silicon wafers

As a cornerstone of 5G, high-resistivity silicon on insulator plays an important role in telecommunications. But it is still a great challenge to measure the resistivity of high-resistivity silicon wafer quickly and accurately. Comparing to other methods, four-point probe (4PP) techniques are considered as the preferable approach. The time-dependent behavior of high-resistivity silicon wafer were first observed during 4PP measurement and the variation of chemical elements on the wafer surface was studied by X-ray photoelectron spectrum. The resistivity of P-type silicon decreases with storage time, while that of N-type silicon increases, which can be attributed to the surface energy band bending due to the variation of the interface states during native oxidation on wafer surface. The first-principles calculation was carried out to observe the effect of interface states on the electrical properties. Based on mechanism of time-dependent behavior of high-resistivity silicon, a thermal treatment method was proposed to realize stable resistivity rapidly for high-resistivity silicon wafer.

The impact of the Internet on migration aspirations and intentions

Abstract This study investigates the relationship between Internet access and migration aspirations and intentions in Africa. While empirical evidence on the role of telecommunications in shaping migration flows is increasing, the relationship between aspirations (desire to migrate) and intentions (migration preparation) has been paid little attention. The analysis is based on the nationally representative 2014 and 2015 surveys of Gallup World Poll in 29 African countries. We modelled migration desire and migration preparation through Probit and Heckman Probit models. The results indicate that having Internet access is positively associated with the desire to move abroad and preparations to migrate once controlling for the socio-demographic characteristics of the respondents. The association is higher in the case of migration preparation than in the case of migration desire. Slightly diverse effects are documented in low- and lower-middle-income countries, where the effect of Internet access on migration desire is somewhat higher than in the sample as a whole.

ТЕЛЕМЕДИЦИНА КАК НАПРАВЛЕНИЕ РАЗВИТИЯ РЫНКА ЦИФРОВЫХ ТЕХНОЛОГИЙ В ЗДРАВООХРА

Research subject — telemedicine services market; object — telemedicine as one of the directions of development of the health care system. The aim of the study is to identify the role of digital technologies, including telemedicine and artificial intelligence, in the process of healthcare transformation. The objectives of the study are to determine the level of development of the global and domestic telemedicine market, to identify the advantages and disadvantages of introducing telemedicine services online. The novelty of the research: the essence and role of telecommunications in the development of relationships between patients and doctors, digital data (including predictive data), indicating the current level of the digital technologies market in medicine and the prospects for its development are presented. Conclusions: telemedicine makes it possible to increase the level of accessibility of the population to medical services, but it cannot abolish the existing health care model.

QUANTUM COMPUTING AND COMMUNICATIONS

Today, like never before, we are witnessing a pervasive diffusion of ultra-broadband fixed-mobile connectivity, the deployment of Cloud-native 5G network and service platforms, and the wide adoption of Artificial Intelligence. It has the so-called Digital Transformation of our Society: as a matter of fact, the transformative role of Telecommunications and Information Communication Technologies (ICT) has long been witnessed as a precursor of scientific progress and economic growth in the modern world. Nevertheless, this transformation is still laying its foundations on Electronics and the impending end of Moore’s Law: therefore, a rethinking of the long-term ways of doing computation and communications has been already started. Among these different ways, quantum technologies might trigger the next innovation breakthrough in the medium long-term. In this direction, the paper provides an overview of the state of the art, challenges, and opportunities posed by an expected second wave of quantum technologies and services.

Analysis of the selection of propagation models from outside into the building at 1800 MHz and 2100 MHz

Wireless internet service in educational buildings plays a crucial role in telecommunications for the knowledge sharing process. Therefore, various factors that may limit internet services coverage in the building should be eliminated or reduced. One such factor is path losses. Path losses are caused by multiple obstacles between the transmitting and receiving antennas. The problem of path losses in the education building can be solved by providing signal booster devices or Wireless Fidelity (Wi-Fi). But not all college buildings have such tools. Besides, WiFi devices also have limitations on bandwidth and the number of users. Thus, mobile communication devices or smartphones located inside the education buildings still need internet service coverage from the transmitter antenna outside the building. An accurate propagation model is required so that the transmitter antenna outside the building can provide internet service coverage to the inside of the building. This paper had been analyzed the selection of propagation models using three validation formulas, namely Mean Error (ME), Root Mean Square Error (RMSE), and Standard Deviation Error (SDE). This paper used several propagation models, namely the 3GPP Model, Winner+ Model, and COST231 Model. Based on the analysis of calculation and measurement data, it is known that the COST231 model is the most accurate because it has the lowest ME, RMSE, and SDE values.

ANALYSIS OF THE EFFECT OF NON VERBAL COMMUNICATION ON CUSTOMER LOYALTY THROUGH EMOTIONAL RESPONSE AND CUSTOMER SATISFACTION ON GRAPARI VISITORS IN SURABAYA.

Every company will do its best to compete with its competitors. There is also intense competition in the telecommunications sector in Indonesia. In 1989, the telecommunications sector was still monopolized by the government, but since 2000 based on government policies it has opened wide for the emergence of new players in the telecommunications sector. This marks the beginning of a competitive environment in the telecommunications sector. In line with globalization, the role of telecommunications is very important, society needs a faster exchange of information. In addition, developments in the information sector are now so fast and rapid, both in terms of content and the technology used to convey information. Therefore, the presence of GraPARI Telkomsel is very influential in the development of the telecommunications industry, especially in Surabaya. This study aims to analyze the effect of kinesics, proxemics, paralanguange and physical appearance variables on customer loyalty through emotional response and customer satisfaction of Telkomsel GraPARI customers in Surabaya. The sample used in this study is based on data from 105 male and female respondents, living in Surabaya, with an age limit of 18-60 years. The questionnaire was given to GraPARI Telkomsel visitors in Surabaya for the past 1 year. For processing and analyzing data in this study using SPSS 22.0. Furthermore, to tabulate the results of the respondents' research, as well as to test the research model is to use the Structural Equation Model (SEM) data analysis technique.

The landlocked condition as determinant for development of internet: The Bolivian case

Objectives:To validate if the condition of Bolivia as a landlocked country is the main reason for the low Internet penetration, or whether there are others relevant factors. Specific objectives: To review the telecommunication infrastructure as an essential facility, as well as to verify if deficient regulation or absence of incentives are other reasons for the low Internet penetration.Methods: Some literature about the role of telecommunications in the economic development, the theory of firm and the non-cooperative behavior, have been analyzed. As part of this research of the theoretical framework and empirical validation, some works about the use of technology, as well as others about performance of Internet markets in landlocked countries around the world have been reviewed. Some South American country cases have been analyzed. Additionally, the regulatory, legal, and economic aspects of Bolivian telecommunications were studied in comparison with the other landlocked South American country. For the empirical validation, a costs model of the firm has been designed. Findings: In comparison with other countries in the region, Internet access in Bolivia is among the most expensive ones.The evidence found in this study points out that this is due to absence of appropriate regulation and because the Internet market is highly concentrated, but it is not due to its condition of being a landlocked country. Novelty:Contrary to what would be expected using conventional wisdom, the lack of Internet development in Bolivia is not a consequence of its landlocked condition. Conversely, according to the results of the cost model developed for this study, low Internet penetration seems to follow a process of high market concentration as result of insufficient regulation. Hence, it seems necessary that the market of Internet access in Bolivia be economically regulated and to accomplish this, the normative needs to be revised and amended. Keywords: Internet; telecommunications; regulation; competency; landlocked countries; development

An Intelligent Disaster Management System Approach to Evacuation Strategies

The importance of disaster management systems is undeniable and is unable to be underestimated because of the numerous manmade and natural disasters now days like theearthquake in Japan, the tsunami disaster in 2011 and the Hurricane Sandy in 2012. The Japan disaster estimated cost was more than 300 billion US dollar. The role of telecommunications and transport is an indispensable resource to manage disaster in averting the human life loss, economic cost and in controlling the disruption. Focusing on the emergency transporting systems, an emergency response system was proposed for disasters at various levels of scale. The system exploits the Information and Communication Technology (ICT) developments, in addition developing a new tool/model to assess the suggested intelligent disaster system within the transportation evacuation strategies performance. The Speed Strategy (SS) and Demand Strategy (DS) were evaluated separately and simultaneously, for traffic in urban networks. In this work the intelligent disaster system Intelligent which utilizes the Intelligent Transportation Systems (ITS) were employed. In other words, varied substitute technologies which includes VANETs (Vehicular Ad hoc Networks) and mobile technologies are applied to suggest and examine an evacuation strategy called (Destination Strategy) while using the proposed Intelligent Disaster Management System. The effectiveness of the current developed system was observed by comparing the modelled consequences of a disaster on the transport environment with that of when the disaster management was implemented. Moreover, a balance and improvement in the traffic flow with effortless evacuation was observed as an outcome of the developed current work along with the implemented Designation Strategy.

Telecommunications and economic development – The 20th century: The building of an evidence base

The literature on the relation between telecommunications and economic development published during the 20th century has been reviewed. It all began in 1963 with the publication of the Jipp curve. Over the twenty years that followed, there was hardly any noteworthy, at least academic, contribution. Already in the eighties, the debate was still focused towards the role of telecommunications in the integration of developing countries into the world economy. In the last decade of the century, subsequent research broadened the scope –the lack of an adequate telecommunication infrastructure is a serious drawback for any country–, and also made a qualitative and quantitative jump forward.

Near-Infrared Microlasers from Self-Assembled Spiropyrane-Based Microsphercial Caps.

Near-infrared (NIR) microlasers play a significant role in telecommunication and biomedical tissue imaging. However, it remains a big challenge to realize NIR microlasers because of the difficulty in preparing highly efficient NIR luminescent materials and perfect optical resonators. Here, we propose a molecular design strategy to creatively realize the first spiropyrane (SP)-based NIR microlasers with low threshold from self-assembled microsphercial caps. The tetraphenylethylene (TPE) moiety with a highly twisted conformation provides a large free volume to facilitate the photoisomerization process of SP and enhance NIR emission of merocyanine in the solid state. Moreover, self-assembled TPE-SP microsphercial caps simultaneously serve as gain media and resonant microcavities, providing optical gain and feedback for NIR laser oscillations with a low threshold (3.68 μJ/cm2). These results are beneficial for deeply understanding the SP microstructures-lasing emission characteristic relationship and provide a useful guideline for the rational molecular design of NIR microlasers with special functionalities.

Prospects for the formation of the telecommunications market in the region (on materials of Smolensk region)

Тhe article deals with the main directions of development of the telecommunications market in the Smolensk region, the analysis of prospects and threats of introduction of innovative digital technologies in the socio-economic infrastructure of the region, the role of telecommunications as a factor of increasing the competitiveness of the regional economy.

Planning Deficiencies and Telecommunication Infrastructure

In 2009, the Australian government began constructing a National Broadband Network (NBN), which was expected to provide high-speed broadband coverage across the nation. The paper focuses on the early NBN rollout period of 2009–2013 and questions to what extent planning strategies and policies at federal, state and local levels responded to the urban and regional possibilities of telecommunication infrastructure, whether economic, social or otherwise. Key findings highlight a range of political issues around telecommunication infrastructure provision, reveal inconsistencies in policies at different levels of government that exacerbated the segregation of infrastructure and strategic planning, and point out policy gaps regarding the role of telecommunication in practice.

Role of Telecommunication in the Health Sector: Challenges in Developing Nations.

Role of Telecommunication in the Health Sector: Challenges in Developing Nations.