802 11 Demystified

This complete guide to planning, deploying and managing Wi-Fi telephone networks explains the economics of Wi-Fi, so network engineers can show the return-on-investment from implementing Wi-Fi. The book also examines key Wi-Fi technology issues.

Unlike most other references on the market, this next-generation resource goes well beyond Bluetooth specifications and thoroughly examines different implementation approaches - as taught by a "master instructor." This book discusses Bluetooth in detail, covering both operational characteristics as well as its use as a wireless communications system. It addresses the coexistence of Bluetooth with other wireless networks and provides information on the significant security problems that exist when communicating without wires. It is based on 2 very popular and highly effective courses the author has been teaching for more than a year.

Billions of Wi-Fi enabled devices are shipped globally each year. Wi-Fi is an integral part of daily life. Everywhere you go, you’re likely to hear the term “Wi-Fi”. The demand for wireless access from users has shifted from a nice-to-have to a necessity. The advancements in Wi-Fi technology have made workplaces mobile. Because of mobility, users can have quick and easy access to data irrespective of their physical location, which improves user productivity. Wi-Fi is everywhere, but there’s a good chance that many engineers don’t really know the basics of Wi-Fi. It is not an easy subject, and this book is written to help engineers design, deploy and secure Wi-Fi networks impeccably.

Ultra Wideband Demystified: Technologies, Applications, and System Design Considerations is a comprehensive text for emerging high speed short range wireless technology of Ultra Wideband. It provides background concepts and information on evolving standards and their development efforts, radio technology, practical system design/implementation and real life applications. The book also deliberates on the regulatory frameworks, security aspects and power management techniques essential to Ultra Wideband usage in consumer devices like portable handheld mobile devices. Important topics as UWB common radio usage for adapting to different existing/new applications and upper layer protocols like Wireless USB are also discussed.ContentsAbstract :• Introduction to Short Range Wireless;• Introduction to Ultra Wideband;• Evolution of UWB Standards;• Physical Layer;• Medium Access Layer;• Advanced MAC Features;• UWB System Design;• Adaptation to Multiple Applications;• Wireless USB;• Converging Marketplace; ReferencesForeword"This book is very timely, unique and fresh in its approach, coming from engineers who have been involved in system design and standard development stages. In particular, the book stands out amongst other literature available because it highlights system designer's viewpoints and because of it covering the whole gamut of technology from practitioner's viewpoints ... I would strongly recommend this book to System Designers, Practicing Engineers, Researchers in Academia and Industry, Product Marketing and Technical strategists for a comprehensive reading on the emerging UWB technologies. I commend Sunil Jogi and Manoj Choudhary for a very timely contribution."Bart Vertenten Chief Architect Connectivity, NXP Semiconductors

Break down the misconceptions of the Internet of Things by examining the different security building blocks available in Intel Architecture (IA) based IoT platforms. This open access book reviews the threat pyramid, secure boot, chain of trust, and the SW stack leading up to defense-in-depth. The IoT presents unique challenges in implementing security and Intel has both CPU and Isolated Security Engine capabilities to simplify it. This book explores the challenges to secure these devices to make them immune to different threats originating from within and outside the network. The requirements and robustness rules to protect the assets vary greatly and there is no single blanket solution approach to implement security. Demystifying Internet of Things Security provides clarity to industry professionals and provides and overview of different security solutions What You'll Learn Secure devices, immunizing them against different threats originating from inside and outside the networkGather an overview of the different security building blocks available in Intel Architecture (IA) based IoT platformsUnderstand the threat pyramid, secure boot, chain of trust, and the software stack leading up to defense-in-depth Who This Book Is For Strategists, developers, architects, and managers in the embedded and Internet of Things (IoT) space trying to understand and implement the security in the IoT devices/platforms.

Unicode is a critical enabling technology for developers who want to internationalize applications for global environments. But, until now, developers have had to turn to standards documents for crucial information on utilizing Unicode. In Unicode Demystified, one of IBM's leading software internationalization experts covers every key aspect of Unicode development, offering practical examples and detailed guidance for integrating Unicode 3.0 into virtually any application or environment. Writing from a developer's point of view, Rich Gillam presents a systematic introduction to Unicode's goals, evolution, and key elements. Gillam illuminates the Unicode standards documents with insightful discussions of character properties, the Unicode character database, storage formats, character sequences, Unicode normalization, character encoding conversion, and more. He presents practical techniques for text processing, locating text boundaries, searching, sorting, rendering text, accepting user input, and other key development tasks. Along the way, he offers specific guidance on integrating Unicode with other technologies, including Java, JavaScript, XML, and the Web. For every developer building internationalized applications, internationalizing existing applications, or interfacing with systems that already utilize Unicode.

This volume explains the technical details of the main Ethernet family members, starting with the familiar 10Base-T, through Fast Ethernet, to the latest Gigabit Ethernet and wireless variants. The applications that can now be supported on a uniform network technology are also explained.

*Clear explanations of SONET (Synchronous Optical Network), the industry standard for high speed transmission over optical fiber, for the non-engineer *Provides detailed SONET case studies and business models *Includes coverage of DWDM (Dense Wavelength Division Multiplexing) and WDM (Wavelength Division Multiplexing