Kommunikationsteknik / telekommunikation

Studienarbeit aus dem Jahr 2017 im Fachbereich Informatik - IT-Security, Note: 2,7, FOM Hochschule für Oekonomie & Management gemeinnützige GmbH, Berlin früher Fachhochschule, Sprache: Deutsch, Abstract: IT-Sicherheitsthemen gewinnen immer mehr an Bedeutung weltweit, da sowohl Kosten von IT Attacken als auch der Imageverlust enorm hoch sind. Die damit ver-bundenen Kosten steigen von Jahr zu Jahr. Die Studie "2015 Cost of Cyber Crime Study: Germany fand heraus, dass die Durchschnittskosten (der Schaden der durch den Angriff verursacht wurde) pro Angriff in Deutsch von 6,1 Millionen Euro im Jahr 2014 auf 6,6 Millionen im Jahr 2015 gestiegen sind. Deutschland ist dabei auf Platz 2 hinter den USA, wo der Durchschnittswert doppelt so hoch ist. Dabei sind Unternehmen aus allen Branchen und aller Größen betroffen. Die Kosten pro Mitarbeiter sind dabei bei kleinen Unternehmen sieben Mal so hoch wie bei großen Unter-nehmen (1.886,00 Euro im Vergleich zu 258,00 Euro). Die Fälle bei den Unternehmen einen großen Schaden erleiden, weil Mitarbeiter unwissentlich Daten oder Informationen an Betrüger herausgeben, bzw. Handlungen vornehmen, um die sie von Betrügern gebeten wurden, häufen sich. Erst im August 2016 wurde der Automobilzulieferer Leoni AG mit Sitz in Nürnberg Opfer eines sog. "Fake President" Angriffes. Dabei wurde Mitarbeitern von Fremden vorgetäuscht über "besondere Befugnisse" zu verfügen, sodass 40 Millionen Euro auf ausländische Konten transferiert wurden.Es existieren zahlreiche weitere Beispiele für solche Angriffe aus der Praxis. Eine von Bitkom im Dezember 2015 durchgeführte Umfrage, bei der 504 Unternehmen in Deutschland gefragt wurden, von welchen Handlungen das Unternehmen in den letzten 2 Jahren betroffen war, zeigt, dass 17 % Social Engineering Attacken zum Opfer wurden . Das alles lässt auf die Aktualität des Themas schließen. Da jeder Angriff für das Unternehmen mit sehr hohen Kosten verbunden ist, ist es wichtig sich mit dieser Thematik auseinander zu setzen.

The ABC was established in 1932, following in the footsteps of the BBC. In its early years it was a shining example of a revered public broadcaster.The key to its early success was having two strong minded, long serving General Managers who ensured that the place was well run, with everyone knowing their place.But as the years went by senior management progressively outsourced responsibility to producers and celebrity presenters and the organisation lost its way, so that now it is little more than a mouthpiece for "progressive" outpourings.It still remains an important national institution, especially in regional Australia, but its political obsessions, catering almost exclusively for inner suburban elites, render it in dire need of reform.As Alston argues, the fundamental problem is that the ABC is a protected entity, with a guaranteed income in excess of a billion dollars, while commercial media outlets struggle to stay alive.With no competitors it doesn't have to earn a living and has no incentive to perform or innovate, let alone live within its means. Instead of catering for its audience it prefers to lecture to them.Effectively accountable to no one, it feels free to ignore its charter obligations, or the interests of its audience, ignoring valid criticism or contemptuously dismissing it.Despite being founded in the depths of the Depression it has long since lost interest in the joys and struggles of the middle class.Instead of relating to basic issues such as jobs, families and incomes it prefers to pander to the elite, inner urban instincts of people like themselves.Alston concludes with a practical reform agenda for adoption by government, but no doubt it will be strenuously contested by the organisation.Richard Alston AO has been a barrister, a senior Cabinet Minister, Australian High Commissioner to the United Kingdom and Federal President of the Liberal Party. He is currently a businessman and company director.

This book describes the 5G mobile network from a systems perspective, focusing on the fundamental design principles that are easily obscured by an overwhelming number of acronyms and standards definitions that dominate this space. The book is written for system generalists with the goal of helping bring up to speed a community that understands a broad range of systems issues (but knows little or nothing about the cellular network) so it can play a role in the network's evolution. This is a community that understands both feature velocity and best practices in building robust scalable systems, and so it has an important role to play in bringing to fruition all of 5G's potential.In addition to giving a step-by-step tour of the design rationale behind 5G, the book aggressively disaggregates the 5G mobile network. Building a disaggregated, virtualized, and software-defined 5G access network is the direction the industry is already headed (for good technical and business reasons), but breaking the 5G network down into its elemental components is also the best way to explain how 5G works. It also helps to illustrate how 5G might evolve in the future to provide even more value.An open source implementation of 5G serves as the technical underpinning for the book. The authors, in collaboration with industrial and academic partners, are working towards a cloud-based implementation that takes advantage of both Software-Defined Networking (SDN) and cloud-native (microservice-based) architectures, culminating in a managed 5G-enabled EdgeCloud-as-a-Service built on the components and mechanisms described throughout the book.

This book explores how technology can facilitate social distancing in order to better manage pandemics and future outbreaks. The authors present key concepts, models and practical technology-based social distancing scenarios, and then enabling technologies including machine learning, AI, computer vision, blockchain and big data.

This book presents a discussion of evolving digital technologies, such as smart phones, assisted living, and innovative digitally based services that are helping to deliver quality, cost-effective and widely accessible healthcare for the elderly.

This book considers advanced real-time optimisation methods for 5G and beyond networks. The authors discuss the fundamentals, technologies, practical questions and challenges around real-time optimisation of 5G and beyond communications, providing insights into relevant theories, models and techniques.

Learn how to pen-test, reverse engineer, and review iOS and Android devices and applications; dive deep into evaluating mobile apps and operating systems, and better defend your organization against the onslaught of mobile device attacks.

This book presents endeavors to join synergies in order to create added value for society, using the latest scientific knowledge to boost technology transfer from academia to industry. It potentiates the foundations for the creation of knowledge- and entrepreneurial cooperation networks involving engineering, innovation, and entrepreneurship stakeholders.The Regional HELIX 2018 conference was organized at the University of Minho's School of Engineering by the MEtRICs and Algoritmi Research Centers, and took place in Guimares, Portugal, from June 27th to 29th, 2018.After a rigorous peer-review process, 160 were accepted for publication, covering a wide range of topics, including Control, Automation and Robotics; Mechatronics Design, Medical Devices and Wellbeing; Cyber-Physical Systems, IoT and Industry 4.0; Innovations in Industrial Context and Advanced Manufacturing; New Trends in Mechanical Systems Development; Advanced Materials and Innovative Applications; Waste to Energy and Sustainable Environment; Operational Research and Industrial Mathematics; Innovation and Collaborative Arrangements; Entrepreneurship and Internationalization; and Oriented Education for Innovation, Engineering and/or Entrepreneurship. 

The volume looks at trends, problems, and prospects for ICT in education that emphasize the learning of computer applications. It focuses mainly on technological advancement for effective teaching learning that includes ICT in education and more.

Written as a guide for assessing the roles that these technqiues play, the book highlights implementation strategies, problem solving solutions, and paves the way for future research endeavors in smart and next generation healthcare systems.

Satellite communications plays a vital role in ensuring seamless access to any telecommunications service anytime and anywhere, and is only a viable option for delivering telecommunication services in a wide range of sectors such as aeronautical, military, maritime, rescue and disaster relief. It should be an important component of 5G-and-beyond wireless architectures as it complements terrestrial telecommunication solutions in various scenarios and will ensure the expansion of the 5G ecosystem towards highly reliable and secure global wireless networks.Satellite Communications in the 5G Era explores promising scenarios for 5G Satellite Communications (SatCom), novel paradigms for satellite-terrestrial integration and emerging technologies for the next generation of satellite systems and hybrid/integrated satellite-terrestrial systems, and focuses on recent research efforts towards 5G and beyond.Topics covered include the role of SatComs in the 5G ecosystem; satellite use cases and scenarios for 5G enhanced Mobile Broadband (eMBB); Software Defined Networking (SDN)-enabled SatCom networks for satellite-terrestrial integration; Network Function Virtualization (NFV)-based scenarios for satellite-terrestrial integration; propagation and system dimensions in extremely high frequency broadband aeronautical SatCom systems; link characterization and system perspective of the next generation non-geostationary SatCom systems; diversity combining and handover techniques in Medium Earth Orbit (MEO) satellites; powerful nonlinear countermeasures for multicarrier satellites; Software Defined Radio (SDR)-based multibeam satellite precoding demonstrator; beam-hopping systems for the next generation SatCom systems; optical on-off keying data links for low earth orbit downlink applications; ultra-high speed data relay systems; on-board processing for satellite-terrestrial integration; on-board interference detection and localization for SatComs; advanced random access schemes in SatComs; interference avoidance and mitigation techniques for hybrid satellite-terrestrial networks; dynamic spectrum sharing in hybrid satellite-terrestrial systems; and two-way satellite relaying.

The book sets out to explain the basic principles of radar and, where applicable, historical aspects of the evolution of these principles are dealt with. The study, while underlining the significance of the cavity magnetron, purposely restricts itself to the pre-cavity magnetron era of radar.

This book introduces the reader to basic wave theory in absorbing, anisotropic and dispersive media and to the physics of production, loss, and movement of plasma in the ionosphere presence of the geomagnetic field.

This 2nd edition is an updated, revised and expanded version of the original 2007 text. The figures are now colour and new material has been added to address recent advances in the field. The authors are well known in the antenna measurement world and this remains a unique book covering planar near-field measurements.