The renowned communications theorist Robert Gallager brings his lucid writing style to the study of the fundamental system aspects of digital communication for a one-semester course for graduate students. With the clarity and insight that have characterized his teaching and earlier textbooks, he develops a simple framework and then combines this with careful proofs to help the reader understand modern systems and simplified models in an intuitive yet precise way. A strong narrative and links between theory and practice reinforce this concise, practical presentation. The book begins with data compression for arbitrary sources. Gallager then describes how to modulate the resulting binary data for transmission over wires, cables, optical fibers, and wireless channels. Analysis and intuitive interpretations are developed for channel noise models, followed by coverage of the principles of detection, coding, and decoding. The various concepts covered are brought together in a description of wireless communication, using CDMA as a case study.
Author: Ouvrage Collectif
Les pratiques de lecture évoluent. En matière de lecture numérique, les nouveaux outils induisent toujours de nouveaux usages et de nouvelles possibilités. En quoi lit-on différemment sur un outil nomade et connecté (smartphone, tablette, liseuse) ? Qu'y lit-on précisément ? Comment les auteurs, les éditeurs, les chercheurs, les lecteurs appréhendent-ils ces outils ? Quelles nouvelles formes sont développées sur ces supports et comment sont-elles reçues ? Rassemblées au sein de ce livre, chacune dans son domaine, arts ou recherche, dix contributions tentent d'explorer les champs ouverts par ces interrogations. Cet ouvrage est le résultat d’un travail pédagogique mené au sein du master « Livres et médiations » de l’Université de Poitiers ; Morgane Bellier, Mylène Contival, Alicia Ferjoux, Yang Dong, Allison Guignepain, François Martinez, Manon Picard, Célia Rivard et Barbora Rulakova ont ainsi participé à l’ensemble de l’organisation des journées d’études et professionnelles des 13 et 14 juin 2014, organisées en partenariat avec le Centre du Livre et de la Lecture en Poitou-Charentes, la médiathèque de Poitiers et avec le soutien du Laboratoire FoReLL, et de l'UFR Lettres et Langues de l'Université de Poitiers.
Unlike books currently on the market, this book attempts to satisfy two goals: combine circuits and electronics into a single, unified treatment, and establish a strong connection with the contemporary world of digital systems. It will introduce a new way of looking not only at the treatment of circuits, but also at the treatment of introductory coursework in engineering in general. Using the concept of ''abstraction,'' the book attempts to form a bridge between the world of physics and the world of large computer systems. In particular, it attempts to unify electrical engineering and computer science as the art of creating and exploiting successive abstractions to manage the complexity of building useful electrical systems. Computer systems are simply one type of electrical systems. +Balances circuits theory with practical digital electronics applications. +Illustrates concepts with real devices. +Supports the popular circuits and electronics course on the MIT OpenCourse Ware from which professionals worldwide study this new approach. +Written by two educators well known for their innovative teaching and research and their collaboration with industry. +Focuses on contemporary MOS technology.
Signals and Systems
Author: Alan V. Oppenheim, Alan S. Willsky
For undergraduate-level courses in Signals and Systems. This comprehensive exploration of signals and systems develops continuous-time and discrete-time concepts/methods in parallel -- highlighting the similarities and differences -- and features introductory treatments of the applications of these basic methods in such areas as filtering, communication, sampling, discrete-time processing of continuous-time signals, and feedback. Relatively self-contained, the text assumes no prior experience with system analysis, convolution, Fourier analysis, or Laplace and z-transforms.
Building Digital Government Strategies
Author: Rodrigo Sandoval-Almazán, Luis F. Luna-Reyes, Dolores E. Luna-Reyes, J. Ramon Gil-Garcia, Gabriel Puron-Cid, Sergio Picazo-Vela
This book provides key strategic principles and best practices to guide the design and implementation of digital government strategies. It provides a series of recommendations and findings to think about IT applications in government as a platform for information, services and collaboration, and strategies to avoid identified pitfalls. Digital government research suggests that information technologies have the potential to generate immense public value and transform the relationships between governments, citizens, businesses and other stakeholders. However, developing innovative and high impact solutions for citizens hinges on the development of strategic institutional, organizational and technical capabilities. Thus far, particular characteristics and problems of the public sector organization promote the development of poorly integrated and difficult to maintain applications. For example, governments maintain separate applications for open data, transparency, and public services, leading to duplication of efforts and a waste of resources. The costs associated with maintaining such sets of poorly integrated systems may limit the use of resources to future projects and innovation. This book provides best practices and recommendations based on extensive research in both Mexico and the United States on how governments can develop a digital government strategy for creating public value, how to finance digital innovation in the public sector, how to building successful collaboration networks and foster citizen engagement, and how to correctly implement open government projects and open data. It will be of interest to researchers, practitioners, students, and public sector IT professionals that work in the design and implementation of technology-based projects and programs.
Critical Restorative Justice
Author: Ivo Aertsen, Brunilda Pali
Publisher: Bloomsbury Publishing
Theories and practices of justice do not meet the socio-political challenges of our times. For those theorists attempting to develop an alternative to the criminal justice system, restorative justice has provided an alternative horizon. The restorative justice approach involves meeting people, understanding and recognising their vulnerability through participatory and deliberative forums and practices. The aim of this collection is to bridge the distance between restorative justice and the critical theory tradition. It, on the one hand, takes into account the limits of restorative justice as they have been articulated, or can be articulated through critical social theory, and on the other hand emphasises the ground-breaking potential that restorative justice can bring to this tradition as a way to address crimes, conflicts and injustices, and to pursue justice.
The Revenge of Analog
Author: David Sax
One of Michiko Kakutani's (New York Times) top ten books of 2016 A funny thing happened on the way to the digital utopia. We've begun to fall back in love with the very analog goods and ideas the tech gurus insisted that we no longer needed. Businesses that once looked outdated, from film photography to brick-and-mortar retail, are now springing with new life. Notebooks, records, and stationery have become cool again. Behold the Revenge of Analog. David Sax has uncovered story after story of entrepreneurs, small business owners, and even big corporations who've found a market selling not apps or virtual solutions but real, tangible things. As e-books are supposedly remaking reading, independent bookstores have sprouted up across the country. As music allegedly migrates to the cloud, vinyl record sales have grown more than ten times over the past decade. Even the offices of tech giants like Google and Facebook increasingly rely on pen and paper to drive their brightest ideas. Sax's work reveals a deep truth about how humans shop, interact, and even think. Blending psychology and observant wit with first-rate reportage, Sax shows the limited appeal of the purely digital life-and the robust future of the real world outside it.
Estamos inmersos en una revolución, similar a la que supuso la de Gutenberg en su momento, y es preciso reflexionar sobre la dimensión de los cambios que se están operando. Para ello se agrupan en este volumen las reflexiones de los mejores especialistas en cada uno de los campos abordados (el jurídico, el documental, el social y el cultural) no tanto para llegar a conclusiones definitivas como para ayudar a comprender qué está ocurriendo y cuáles pueden ser las líneas de futuro, tanto desde una perspectiva social como desde la profesional.
DIGAREC Lectures 2008/09
Author: Stephan Günzel
Publisher: Universitätsverlag Potsdam
Der zweite Band der DIGAREC Series beinhaltet Beiträge der DIGAREC Lectures 2008/09 sowie des Wissenschaftsforums der Deutschen Gamestage 2008 und 2009. Mit Beiträgen von Oliver Castendyk (Erich Pommer Institut), Stephan Günzel mit Michael Liebe und Dieter Mersch (Universität Potsdam), Andreas Lange (Computerspielemuseum Berlin), Ingrid Möller mit Barbara Krahé (Universität Potsdam), Klaus Spieler (Institut für digitale interaktive Kultur Berlin), James Tobias (University of California, Riverside), Stefan Böhme (HBK Braunschweig), Robert Glashüttner (Wien), Sven Jöckel (Universität Erfurt) mit Leyla Dogruel (FU Berlin), Michael Mosel (Universität Marburg), Sebastian Quack (HTW Berlin), Leif Rumbke (Hamburg) und Steffen P. Walz (ETH Zürich).