Kommunikationsteknik / telekommunikation

After official policy advice to governments is publicly released, governments are often accused of ignoring or rejecting their experts. Commonly represented as politicisation, this depiction is superficial. Digging deeper, is there something about the official advice itself that makes it easy to ignore? Instead of lamenting a demise of expertise, Christiane Gerblinger asks: does the expert advice of policy officials feature characteristics that invite its government audience to overlook or misread it? To answer this question, Gerblinger critically examines official policy advice and finds the language of the rebuffed: government experts reluctant to disclose what they know so as to accommodate political circumstances. She argues that this language evades stable meaning and diminishes the democratic right of citizens to scrutinise the work of government.

The fifth edition of this textbook has been completely revised and significantly extended in order to reflect the revolution of geodetic technologies, methods and applications during the last decade. The Global Geodetic Observing System established by the IAG utilizes a variety of techniques to determine the geometric shape of the earth and its kinematics, the variations of earth rotation, and the earth's gravity field. The societal importance of geodetic products was highlighted by the UN resolution on the Global Geodetic Reference Frame. In this context, both space and terrestrial techniques play a fundamental role. Recent space missions are monitoring climate-relevant processes such as mass transport in the Earth system and sea level changes. The analysis of the time variation of the geodetic products provides the link to neighboring geosciences and contributes to proper modelling of geodynamic processes. New satellite mission concepts and novel technologies such as quantum gravimetry and optical clocks show great potential to further improve the geodetic observing system in the future. The book especially addresses graduate students in the fields of geodesy, geophysics, surveying engineering, geomatics, and space navigation. It should also serve as a reference for geoscientists and engineers facing geodetic problems in their professional work. The book follows the principal directions of geodesy, providing the theoretical background as well as the principles of measurement and evaluation methods, which is enriched with numerous figures. An extensive reference list supports further studies.

A bold, groundbreaking argument by a world-renowned expert that unless we treat free speech as the fundamental human right, there can be no others.What are human rights? Are they laid out definitively in the UN’s Universal Declaration of Human Rights or the US Bill of Rights? Are they items on a checklist—dignity, justice, progress, standard of living, health care, housing? In The Most Human Right, Eric Heinze explains why global human rights systems have failed. International organizations constantly report on how governments manage human goods, such as fair trials, humane conditions of detention, healthcare, or housing. But to appease autocratic regimes, experts have ignored the primacy of free speech. Heinze argues that goods become rights only when citizens can claim them publicly and fearlessly: free speech is the fundamental right, without which the very concept of a “right” makes no sense.  Heinze argues that throughout history countless systems of justice have promised human goods. What, then, makes human rights different? What must human rights have that other systems have lacked? Heinze revisits the origins of the concept, exploring what it means for a nation to protect human rights, and what a citizen needs in order to pursue them. He explains how free speech distinguishes human rights from other ideas about justice, past and present.

Deep learning has achieved remarkable success in many machine learning tasks such as image classification, speech recognition, and game playing. However, these breakthroughs are often difficult to translate into real-world engineering systems because deep learning models require a massive number of training samples, which are costly to obtain in practice. To address labeled data scarcity, few-shot meta-learning optimizes learning algorithms that can efficiently adapt to new tasks quickly. While meta-learning is gaining significant interest in the machine learning literature, its working principles and theoretic fundamentals are not as well understood in the engineering community. This review monograph provides an introduction to meta-learning by covering principles, algorithms, theory, and engineering applications. After introducing meta-learning in comparison with conventional and joint learning, the main meta-learning algorithms are described, as well as a general bilevel optimization framework for the definition of meta-learning techniques. Then, known results on the generalization capabilities of meta-learning from a statistical learning viewpoint are summarized. Applications to communication systems, including decoding and power allocation, are discussed next, followed by an introduction to aspects related to the integration of meta-learning with emerging computing technologies, namely neuromorphic and quantum computing. The monograph concludes with an overview of open research challenges.

Relying on unmanned autonomous flight control programs, unmanned aerial vehicles (UAVs) equipped with radio communication devices have been actively developed around the world. Given their low cost, flexible maneuvering and unmanned operation, UAVs have been widely used in both civilian operations and military missions, including environmental monitoring, emergency communications, express distribution, even military surveillance and attacks, for example. Given that a range of standards and protocols used in terrestrial wireless networks are not applicable to UAV networks, and that some practical constraints such as battery power and no-fly zone hinder the maneuverability capability of a single UAV, we need to explore advanced communication and networking theories and methods for the sake of supporting future ultra-reliable and low-latency applications. Typically, the full potential of UAV network's functionalities can be tapped with the aid of the cooperation of multiple drones relying on their ad hoc networking, in-network communications and coordinated control. Furthermore, some swarm intelligence models and algorithms conceived for dynamic negotiation, path programming, formation flight and task assignment of multiple cooperative drones are also beneficial in terms of extending UAV's functionalities and coverage, as well as of increasing their efficiency. We call the networking and cooperation of multiple drones as the terminology 'flying ad hoc network (FANET)', and there indeed are numerous new challenges to be overcome before the idespread of so-called heterogeneous FANETs. In this book, we examine a range of technical issues in FANETs, from physical-layer channel modeling to MAC-layer resource allocation, while also introducing readers to UAV aided mobile edge computing techniques.

"Includes QR codes for online tutorials!"--Cover

Dieses Buch bietet ein Tutorial über Quantenkommunikationsnetze. Die Autoren erörtern aktuelle Paradigmenwechsel in Kommunikationsnetzen, die erforderlich sind, um die einfachen Transportkonzepte der vorherrschenden Netze um Rechen- und Speicherfunktionen zu ergänzen. Sie zeigen, wie diese "softwarisierten" Lösungen neue Wege beschreiten, um Latenzzeiten zu reduzieren und die Ausfallsicherheit zu erhöhen. Die Autoren erörtern, wie diese Lösungen trotz der ihnen innewohnenden Probleme aufgrund der eingeführten Rechenlatenz und des Energieverbrauchs durch hybride klassisch-quantische Kommunikationsnetze gelöst werden können. Das Buch bringt Quantennetzwerke, Quanteninformationstheorie, Quantencomputer und Quantensimulation zusammen.

In this novel an American non-profit company initiates a national movement to heal the youth's addiction to mobile social media, like smart phones. Voice Synthesis Inc. (VSI) based in Alexandria, Virginia, was founded by Matt and Heather Flynn, billionaires from their Turbopod (T-Pod) vehicles sold around the world. The couple does research to determine that the addiction starts at age ten and is a primary culprit in the dramatic reduction of the Work Ethic in America.The book provides alarming statistics as VSI's employees focus on the problem at home, in the schools, in retail businesses, in the government, the military and board rooms. It becomes clear to the reader that the social media devices greatly contribute to dumbing of citizens, ripe for control by a Socialist government.The reader follows VSI as it enlists a well-known company to apply artificial intelligence to voice synthesis systems to create a useful Flip Phone for the youth. "FLIPA" can access communications but not the Internet and streaming video.Nationally-known cyber gurus, who formed a company called Padlockers ,create a computer E-Worm which debilitates the production of popular smart phones in China. At the same time the government provides programs attractive for companies to bring back the production of the devices to America. The story ends with a realistic hope for the future as the simple FLIPA wins over legions of youth, one Flip Phone at a time.