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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > Telephone technology > Mobile phones
This monograph provides a tutorial on a family of sequential learning and decision problems known as the multi-armed bandit problems. In such problems, any decision serves the purpose of exploring or exploiting or both. This balancing act between exploration and exploitation is characteristic of this type of ""learning-on-the-go"" problem, in which we have to instantaneously apply what we have learned so far, even as we continue to learn. The authors give an in-depth introduction to the technical aspects of the theory of decision-making technologies. The range is comprehensive and covers topics that have applications in many networking systems. These include Recommender systems, Ad Placement systems, the smart grid, and clinical trials. Online Learning Methods for Networking is essential reading for students working in networking and machine learning. Designers of many network-based systems will find it a valuable resource for improving their technology.
A short book with important concepts and instructions. This book is for those who want to find out more about Windows Phone and are familiar with functional programming languages, and in particular, F#. The book assumes that you know how to program using F# as a language. However, the book does take you through a brief introduction to Windows Phone as a platform and F# as a language.
Stable Throughput Regions in Wireless Networks examines the fundamentals of stable throughput in wireless networks. It reviews the notion of stability and of stable throughput regions in wireless networks, with emphasis on network layer cooperation between interacting users. After a brief introduction, it examines in detail specific instances of the stability issue. These instances differ from each other in terms of the network, channel and traffic models they use. What they share is the notion of how stability is affected by node cooperation, as well as the notion of ""interacting queues"" that makes the stable throughput analysis difficult and often intractable. This review is intended to provide a reference point for the rich set of network control problems that arise in the context of queue stability in modern and future networks.
It is widely accepted that nanonetworks will enable a plethora of long-awaited applications, ranging from healthcare to homeland security, industrial development and environmental protection. Enabling communication among nanomachines is still a major challenge. While it is acknowledged that there is still a long way to go before having a fully functional nanomachine, this book makes the case that hardware-oriented research and communication-focused investigations will benefit from being conducted in parallel from an early stage. Fundamentals of Electromagnetic Nanonetworks in the Terahertz Band defines the first steps towards enabling electromagnetic communication among nanomachines in the Terahertz Band (0.1-10 THz). The starting point is the development of novel graphene-based plasmonic nano-antennas, which efficiently operate in the Terahertz Band. The authors have developed a novel Terahertz Band channel model and investigated the potential of this frequency band by means of a channel capacity analysis. In light of the channel peculiarities and the nanomachine capabilities, they put forward a set of communication mechanisms for nanonetworks, which include femtosecond-long pulse-based modulations, low-weight channel coding schemes, a new symbol detection scheme at the receiver, and a new medium access control protocol for nanonetworks. In addition, the book analyzes the performance of perpetual nanonetworks by developing a joint energy harvesting and energy consumption model for self-powered nanomachines. Finally, an emulation platform has been developed to simulate a one-to-one nano-link between nanomachines and validate the developed models.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Maximize the power of your iPhone 5Master the versatile features of your iPhone 5 and stay organized, connected, informed, and entertained. How to Do Everything: iPhone 5 covers iOS 6 and the new capabilities added to the core functions and apps, such as Contacts, Calendar, Reminders, Notes, Safari, Mail, Camera, Maps, FaceTime, and iTunes. You'll also learn how to use iCloud, Notification Center, and Siri. Plus, discover tips on finding and downloading additional apps that can dramatically increase your iPhone's performance. This hands-on guide covers it all! Get assistance from Siri and use the Dictation feature Import and sync data from your computer, iCloud, and other iOS devices Discover preinstalled apps and download additional apps Make and receive calls, use voicemail, and set up custom ringtones Manage Contacts and stay organized with Calendar, Reminders, and Notes Surf the Web with Safari Shoot, edit, and share photos and videos Navigate with turn-by-turn directions using the newly redesigned Maps app Manage e-mail accounts, use text messaging, and connect to social media networks, including Facebook and TwitterVideo chat via FaceTime or Skype Experience multimedia entertainment and read e-books and digital editions of newspapers and magazines Play exciting single- and multi-player games Protect and troubleshoot your iPhone 5
The book is written in a cookbook style, presenting examples in the style of recipes, allowing you to go directly to your topic of interest, or follow topics throughout a chapter to gain in-depth knowledge. This book is for developers who want to build data-driven apps, or a line of business applications using the Windows Phone platform. It is also useful for developers on other mobile platforms looking to convert their apps to Windows Phone 7.5 Mango. Basic understanding of C#, XAML and Silverlight is required.
Economic Modeling in Networking: A Primer is designed to provide engineering students who have a basic training in economic modeling and game theory an understanding of where and when game theoretic models are employed, the assumptions underpinning key models, and conceptual insights that are broadly applicable. In recent years, engineers have been increasingly called upon to have basic skills in economic modeling and game theory at their disposal for two related reasons. First, the economics of networks has a significant effect on the adoption and creation of network innovations, and second, engineered networks serve as the platform for many of our most basic economic interactions today. Despite these confluences, the typical engineering student does not garner economic training until later in their graduate career, if at all. This monograph takes the stance that basic economic understanding is a critical tool in the arsenal of the modern engineering student. Economic Modeling in Networking: A Primer is intended to help engineering students to work with economic models but also to cast a critical eye over such models. As such, it is also an ideal complementary text to a good introductory textbook or course on microeconomics or game theory
This book provides a comprehensive description of the Long Term Evolution (LTE) radio access network, as specified by 3GPP. The content is aimed towards anyone wishing to learn the basics, or to develop a more thorough understanding. The content is presented in the form of bullet points to keep it concise and to allow rapid access to the key information. Highlights include: - Complete text is presented as bullet points - Can be read with ease and in less time - Illustrations and tables support text - Content includes both introductory and advanced topics - Based upon the release 8, 9 and 10 versions of the 3GPP specifications - Detailed description of air-interface, bit rates and physical channels - Most important messages and signalling procedures explained - Idle mode and physical layer procedures presented - Practical radio network planning subjects addressed - Includes both FDD and TDD variants - LTE Advanced technologies presented - Voice over LTE solutions described
The weighted sum-rate maximization (WSRMax) problem plays a central role in many network control and optimization methods, such as power control, link scheduling, cross-layer control, network utility maximization. The problem is NP-hard in general. In Weighted Sum-Rate Maximization in Wireless Networks: A Review, a cohesive discussion of the existing solution methods associated with the WSRMax problem, including global, fast local, as well as decentralized methods is presented. In addition, general optimization approaches, such as branch and bound methods, complementary geometric programming, and decomposition methods, are discussed in depth to address the problem. Through a number of numerical examples, the applicability of the resulting algorithms in various application domains is demonstrated. The presented algorithms and the associated numerical results can be very useful for network engineers or researchers with an interest in network design.
Transmission Capacity of Wireless Networks presents a framework for computing the outage probability (OP) and transmission capacity (TC) in a wireless network. Transmission capacity is a performance metric for wireless networks that measures the spatial intensity of successful transmissions per unit area, subject to a constraint on the permissible outage probability (where outage occurs when the SINR at a receiver is below a threshold). This volume gives a unified treatment of the TC framework that has been developed by the authors and their collaborators over the past decade. The mathematical framework underlying the analysis is stochastic geometry: Poisson point processes model the locations of interferers, and (stable) shot noise processes represent the aggregate interference seen at a receiver. Transmission Capacity of Wireless Networks presents TC results (exact, asymptotic, and bounds) on a simple model in order to illustrate a key strength of the framework: analytical tractability yields explicit performance dependence upon key model parameters. It goes on to present enhancements to this basic model - channel fading, variable link distances, and multihop.Chapter 5 presents four network design case studies well-suited to TC: (i) spectrum management, (ii) interference cancellation, (iii) signal threshold transmission scheduling, and iv) power control. Chapter 6 studies the TC when nodes have multiple antennas, which provides a contrast vs. classical results that ignore interference. Transmission Capacity of Wireless Networks is essential reading for anyone with an interest in wireless network design and in understanding the fundamentals of the performance and behavior of such networks.
Think you have the next great Windows Phone app idea? The Windows Phone Application Sketch Book is an essential tool for any aspiring Windows Phone developer. This sketch book makes it easy to centralize and organize your ideas, featuring enlarged Windows Phone templates to write on. Professionally printed on high-quality paper, it has a total of 150 gridded templates for you to draft ideas and doodle designs while providing ample room to make notes and document the app name and screen name. This book is an invaluable tool for bringing your next great Windows Phone app idea to life What you'll learn* The Apress Windows Phone Application Sketch Book makes it easy to keep design ideas organized in one central place. * Includes 150 magnified templates for easy use, with plenty of room on the gridded page to jot notes and doodle designs. * This professional notepad gives your design a finished look from which to share ideas with colleagues and clients. Who this book is for Any aspiring Windows Phone developer.
In this book, the world's leading Apple platform development trainers offer a complete, practical, hands-on introduction to iPhone and iPad programming. The authors walk through all the Apple tools and technologies needed to build successful iPhone/iPad/iPod touch apps, including the iOS 4.3 SDK, the Objective-C language, Xcode 4, Foundation framework, and the classes that make up the iOS UI framework. The many topics covered in this book include: Easily setting up elegant, efficient user interfaces with UIKitCreating effective visuals, animation, and effects with Core Graphics and Core AnimationMaking the most of the iOS multi-touch event handling and accelerometer dataBuilding location-aware iOS applications utilizing Core Location and MapKitLocalizing applications for international useCreating applications that capture audio and play mediaStoring data in files or with Core Data New chapters added to this edition include: iPad-friendly interfaces, including UIPopoverController and UISplitViewControllerBlocks and CategoriesInstruments and Xcode's static analyzerUIWebView and connecting with web serversPush Notifications iOS Programming also includes a handy Xcode Quick Reference Card that lists Xcode 4's most commonly used keyboard shortcuts.
Interference is the main performance-limiting factor of large wireless communication systems. To analyze and design these networks, it is thus imperative that the interference is statistically characterized or bounded in the presence of various sources of uncertainty, including the users' positions, their patterns of activity, and the channel fading states. Interference in Large Wireless Networks addresses this problem using basic probability and tools from stochastic geometry. Starting with regular networks and the popular Poisson model, it discusses increasingly more general networks. In addition to the interference itself, it also derives explicit expressions for outage probabilities, which are indispensable for the optimization of higher-level metrics such as the transport capacity or end-to-end delay. The book includes an appendix that reviews the underlying mathematical tools, which makes it self-contained and suitable for graduate students, researchers, and wireless engineers alike.
Pitroda registered his first patent on the mobile wallet in 1994, and since then he and his colleague, Mehul Desai, have been traversing the world, taking this technology forward. Initially resistant to the idea of mobile money, the three stakeholders in mobile telephony - telecom companies, banks and merchants - are now realizing that it is crucial to their growth. All of them are now reinventing themselves for our mobile phones, and competing with each other to manage our lifestyles. For telecom companies, it is no longer about connectivity but about delivering personalized and secure services. For banks, it is no longer about deposits and lending but about the convergence of financial products and services; and for merchants, it is no longer about goods but goods bundled with services. For India, which has more mobile phone subscribers (over 470 million, with over ten million being added every month) than bank account holders, mobile money can be an engine for growth. It can also be a life-transforming technology for social good, empowering those at the bottom of the pyramid. Once again, India can show the way to the world.
Have you ever wanted to learn text messaging lingo so you could
decipher what your kids were text messaging to each other or have
you ever wanted to become an expert in text messaging so you could
send someone a quick message? Either way, this book is for you.
This book will demystify the art of text messaging.
This volume discusses wireless network modeling and performance analysis with the aim of showing how stochastic geometry can be used in a more or less systematic way to analyze the phenomena that arise in this context. The book first focuses on medium access control mechanisms used in ad hoc networks and in cellular networks. It then discusses the use of stochastic geometry for the quantitative analysis of routing algorithms in mobile ad hoc networks. The appendix also contains a concise summary of wireless communication principles and of the network architectures considered in the two volumes.
The book begins with an introduction to the subject and then moves on to describe the fundamentals of wireless communication including a brief description of different modulation techniques. The text includes coverage of second generation (2G) cellular network together with its two important implementation standards GSM & IS-95; it also discusses WLL and WLAN. In addition, it presents a variety of data services available in the domain of mobile computing with other relevant issues. Finally, it gives a brief on UMTS, a representative of the third generation (3G) of cellular networks. The fundamental tenets of mobile computing, such as mobility management, channel assignment, protocols at air interface, and system design are carefully covered for all categories of wireless networks described here. A perfect balance between theoretical aspects of mobile computing and its implementation standards has been maintained throughout the book. Many examples and exercises are included, which will help students prepare for examinations. The book is intended primarily for students of B.E./B.Tech. of Computer Science and Engineering, Information Technology, Electronics and Communication Engineering, and related disciplines. It will also be useful to the students of BCA/MCA and B.Sc./M.Sc. (Computer Science/Electronics).
Stochastic Geometry and Wireless Networks, Part II: Applications focuses on wireless network modeling and performance analysis. The aim is to show how stochastic geometry can be used in a more or less systematic way to analyze the phenomena that arise in this context. It first focuses on medium access control mechanisms used in ad hoc networks and in cellular networks. It then discusses the use of stochastic geometry for the quantitative analysis of routing algorithms in mobile ad hoc networks. The appendix also contains a concise summary of wireless communication principles and of the network architectures considered in this and the previous volume entitled Stochastic Geometry and Wireless Networks, Part I: Theory.
Gossip network algorithms, as the name suggests, are built upon a gossip or rumor style unreliable, asynchronous information exchange protocol. They provide algorithmic architecture of choice for many of the emerging networks -- such as sensor networks, peer-to-peer networks, social networks and mobile networks of vehicles -- that are primarily not designed for, but required to perform communication and computation. Examples include, estimation algorithms in sensor networks, broadcasting news through a peer-to-peer network, or viral advertising in a social network. Gossip algorithms captures the recent excitement in this interdisciplinary topic that is witnessed across the fields of communication, computation, control, signal processing and algorithms
Power Control in Wireless Cellular Networks provides a comprehensive survey of the models, algorithms, analysis, and methodologies in this vast and growing research area. It starts with a taxonomy of the wide range of power control problem formulations, and progresses from the basic formulation to more sophisticated ones. When transmit power is the only set of optimisation variables, algorithms for fixed SIR are presented first, before turning to their robust versions and joint SIR and power optimization. This is followed by opportunistic and non-cooperative power control. Then joint control of power together with beamforming pattern, base station assignment, spectrum allocation, and transmit schedule are surveyed one by one. Power Control in Wireless Cellular Networks highlights the use of mathematical language and tools in the study of power control, including optimisation theory, control theory, game theory, and linear algebra. Practical implementations of some of the algorithms in operational networks are discussed in the concluding chapter.
This popular book was updated in 2013 just thirteen years after the death of the glamourous film star Hedy Lamarr. She was a famous Hollywood star and the first woman to appear naked on film. George Antheil was a piano player and composer. So just how did these two come to invent the latest technology used by the mobile phone? Or did they? She was labelled 'the most beautiful girl in the world' and he 'the bad boy of music' yet way back in 1942 they took out a patent covering the vital radio technique that we now call spread spectrum. This absorbing book traces the eventful and sometimes scandalous lives of Hedy and George. It tells the fascinating story of radio and the ongoing battle to make it secure and of similar quality to wired communication. Spread spectrum emerged from that battle to become the solution of choice for anything from mobile phones to wireless computer networks.
"The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Second Edition" is an updated version of the best-selling guide to this exciting technology that will merge the Internet with the cellular world, ensuring the availability of Internet technologies such as the web, email, instant messaging, presence and videoconferencing nearly everywhere. In this thoroughly revised overview of the IMS and its technologies, goals, history, vision, the organizations involved in its standardization and architecture, the authors first describe how each technology works on the Internet and then explain how the same technology is adapted to work in the IMS, enabling readers to take advantage of any current and future Internet service.Key features of the Second Edition include: a new chapter on next generation networks, including an overview on standardization, the architecture, and PSTN/ISDN simulation services; fully updated chapter on the push-to-talk over cellular (PoC) service, covering the standardization in the Open Mobile Alliance (OMA), architecture, PoC session types, user plane, and the Talk Burst Control Protocol; several expanded sections, including discussion of the role of the open mobile alliance in the standardization process, IPv4 support in IMS, a description of the IMS Application Layer Gateway and the Transition Gateway, and a description of the presence data model; updated material on the presence service, session-based instant messages with the Message Session Relay Protocol (MSRP), and the XML Configuration Access Protocol (XCAP). It is supported by a companion website on which instructors and lecturers can find electronic versions of the figures. Engineers, programmers, business managers, marketing representatives, and technically aware users will all find this to be an indispensable guide to IMS and the business model behind it.
Softwaretests bekommen bei immer komplexer werdenden Programmen eine immer groessere Bedeutung fur den Projekterfolg. Obwohl Testkonzepte etabliert sind, werden sie haufig nur in geringem Masse in Unternehmen genutzt, da sie angeblich zu aufwandig und zu teuer sind. Neben einer intuitiven Einfuhrung in Testtechniken zeigt dieses Buch den einfachen Einstieg in das Testen von Java-Programmen mit Hilfe von einfach nutzbaren Open-Source-Werkzeugen. Dabei werden neben klassischen Programmen auch Vorgehensweisen und Werkzeuge fur Client-Server-Systeme, Web-Applikationen und Systeme mit Datenbankintegration betrachtet. Die Werkzeuge decken dabei funktionale Tests, Testuberdeckungen, Tests von Oberflachen, Performance- und Lasttests, sowie die Automatisierung von Testausfuhrungen ab. Alle Beispiele stehen als Download zur Verfugung. |
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