Mobile communications

AccessScience ◽  
2015 ◽  
Keyword(s):  
Mobile Communications

Mobile communications in hospitals

Anaesthesia ◽  
2000 ◽  
Vol 55 (7) ◽  
pp. 727-728 ◽  
Author(s):  
J. A. Lack
Keyword(s):  
Mobile Communications

Satellite Systems for Mobile Communications and Navigation

IEE Review ◽  
1989 ◽  
Vol 35 (8) ◽  
pp. 310
Author(s):  
B. Honary
Keyword(s):  
Mobile Communications ◽  
Satellite Systems

GPS and GSM Based Tracking System for Objects Moving over Wide Geographical Areas

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Fatima Ameen ◽  
Ziad Mohammed ◽  
Abdulrahman Siddiq
Keyword(s):  
Global Positioning System ◽  
Mobile Communications ◽  
Moving Objects ◽  
Tracking System ◽  
Geographical Area ◽  
Tracking Systems ◽  
Acceptable Result ◽  
Internet Service ◽  
Global Positioning ◽  
Tracking Objects

Tracking systems of moving objects provide a useful means to better control, manage and secure them. Tracking systems are used in different scales of applications such as indoors, outdoors and even used to track vehicles, ships and air planes moving over the globe. This paper presents the design and implementation of a system for tracking objects moving over a wide geographical area. The system depends on the Global Positioning System (GPS) and Global System for Mobile Communications (GSM) technologies without requiring the Internet service. The implemented system uses the freely available GPS service to determine the position of the moving objects. The tests of the implemented system in different regions and conditions show that the maximum uncertainty in the obtained positions is a circle with radius of about 16 m, which is an acceptable result for tracking the movement of objects in wide and open environments.

ТЕЛЕВІЗІЙНА КОМУНІКАЦІЯ В КОНТЕКСТІ РОЗВИТКУ СУСПІЛЬСТВА

2020 ◽  
pp. 68
Author(s):  
O. Yatchuk ◽  
N. Kodatska
Keyword(s):  
Public Opinion ◽  
Mobile Communications ◽  
Mass Communication ◽  
New Technologies ◽  
Modern World ◽  
Digital Television ◽  
Broadband Internet ◽  
Television Content ◽  
The Usa ◽  
Traditional Technologies

<div><p><em>The article presents the dynamics of the main factors for the development of modern television, the transition from traditional technologies of television broadcasting to the latest technologies. The process of developing digital television and broadband has been technically determined to address the challenge of integrating new technologies into traditional TV content. Ways of expanding the possibilities of interaction between the viewer and the television producer in the context of overcoming the crisis of traditional technologies are analyzed. It is determined that integration, development of mobile communications and Internet technologies are a hallmark of the modern world media space and have a significant influence on the formation of public opinion. The analysis of actual media researches concerning problems of the theory of mass communication is carried out. The phenomenon of «social television», which combines watching TV with simultaneous communication in social networks, is considered. The author draws attention to the disclosure of the determining factors of media communication, the study of the process of feedback from viewers on television. It is stated that the development of modern technologies, namely digital broadcasting and introduction of broadband Internet access to create a multimedia platform that combines Internet communication services and television content, contributes to improving the mechanism of interaction between the TV and the viewer. The theory of the conceptualization of journalism based on identity construction is examined: journalists understand their audience and, as members of that audience, connect with their communities. An analysis of integrated journalistic activity is conducted, which consists of three stages: gathering, editing and disseminating information. It is determined that the influence of the Internet allows the consumer to play his or her role at each stage, thus helping the journalist determine the degree of relevance of the story to himself and to the potential audience. The common features of modern telecontent were singled out and a comparative analysis of the trend of development of interactive TV programs of the USA, UK and Ukraine was made.</em></p></div><p><strong><em>Key words:</em></strong><em> public opinion, two-vector communication, feedback, communication methods, television audience, country telephony.</em></p>

Multi-User Chaos MIMO-OFDM Scheme for Secure Mobile Communications

2014 ◽  
Vol 2 ◽  
pp. 264-268
Author(s):  
Yuma Inaba ◽  
Eiji Okamoto
Keyword(s):  
Mobile Communications ◽  
Mimo Ofdm

Joint Signal Detection and Channel Estimation Using Differential Models via EM Algorithm for OFDM Mobile Communications

2011 ◽  
Vol E94-B (2) ◽  
pp. 533-545 ◽  
Author(s):  
Kazushi MURAOKA ◽  
Kazuhiko FUKAWA ◽  
Hiroshi SUZUKI ◽  
Satoshi SUYAMA
Keyword(s):  
Channel Estimation ◽  
Em Algorithm ◽  
Signal Detection ◽  
Mobile Communications

A high flexibility mobile communications satellite payload

1992 ◽  
Author(s):  
P. FRAISE ◽  
B. COULOMB ◽  
A. DARBANDI ◽  
R. LENORMAND ◽  
D. RENE ◽  
...  
Keyword(s):  
Mobile Communications ◽  
High Flexibility

A Single Band Antenna Design for Future Millimeter Wave Wireless Communication at 38 GHz

2018 ◽  
Vol 3 (1) ◽  
pp. 35 ◽  
Author(s):  
Cihat Şeker ◽  
Turgut Ozturk ◽  
Muhammet Tahir Güneşer
Keyword(s):  
Millimeter Wave ◽  
Mobile Communications ◽  
Return Loss ◽  
Computer Software ◽  
Dielectric Substrate ◽  
Single Band ◽  
Microstrip Patch ◽  
Fifth Generation ◽  
Wireless Application ◽  
5G Mobile Communications

In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. 28, 38, 60 and 73 GHz frequency bands have been allocated for 5G mobile communications by International Telecommunications Union (ITU). In this paper, we proposed an antenna, which is suitable for the millimeter wave frequency. The single band antenna consists of new slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna was simulated on a FR4 dielectric substrate have relative permittivity 4.4, loss tangent 0.02, and height 1.6 mm. The antenna was simulated by Electromagnetic simulation, computer software technology High Frequency Structural Simulator. And simulated result on return loss, VSWR, radiation pattern and 3D gain was presented. The parameters of the results well coherent and proved the literature for millimeter wave 5G wireless application at 38 GHz.

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