Wireless has finally come of age. With a significant jump in throughput over previous standards, 802.11n is the first wireless technology that doesn’t trade speed for mobility, and users have stormed onto wireless networks with a passion. In this concise guide, Matthew Gast—chair of the IEEE group that produced revision 802.11-2012—shows you why wireless has become the default method of connecting to a network, and provides technical details you need to plan, design, and deploy 802.11n today. Building a network for the multitude of new devices is now a strategic decision for network engineers everywhere. This book gives you an in-depth look at key parts of 802.11n, and shows you how to achieve an Ethernet-free wireless office. Learn how MIMO’s multiple data streams greatly increase wireless speed Discover how 802.11n modifications improve MAC efficiency Examine advanced PHY features such as beanforming and space-time code block Use advanced MAC features to maintain interoperability with older devices Plan an 802.11n network by determining traffic demand, key applications, power requirements, and security Choose the architecture, select hardware, and plan coverage to design and build your network

Master Modern Networking by Understanding and Solving Real Problems Computer Networking Problems and Solutions offers a new approach to understanding networking that not only illuminates current systems but prepares readers for whatever comes next. Its problem-solving approach reveals why modern computer networks and protocols are designed as they are, by explaining the problems any protocol or system must overcome, considering common solutions, and showing how those solutions have been implemented in new and mature protocols. Part I considers data transport (the data plane). Part II covers protocols used to discover and use topology and reachability information (the control plane). Part III considers several common network designs and architectures, including data center fabrics, MPLS cores, and modern Software-Defined Wide Area Networks (SD-WAN). Principles that underlie technologies such as Software Defined Networks (SDNs) are considered throughout, as solutions to problems faced by all networking technologies. This guide is ideal for beginning network engineers, students of computer networking, and experienced engineers seeking a deeper understanding of the technologies they use every day. Whatever your background, this book will help you quickly recognize problems and solutions that constantly recur, and apply this knowledge to new technologies and environments. Coverage Includes · Data and networking transport · Lower- and higher-level transports and interlayer discovery · Packet switching · Quality of Service (QoS) · Virtualized networks and services · Network topology discovery · Unicast loop free routing · Reacting to topology changes · Distance vector control planes, link state, and path vector control · Control plane policies and centralization · Failure domains · Securing networks and transport · Network design patterns · Redundancy and resiliency · Troubleshooting · Network disaggregation · Automating network management · Cloud computing · Networking the Internet of Things (IoT) · Emerging trends and technologies

This book focuses on providing a detailed and practical explanation of key existing and emerging wireless networking technologies and trends,while minimizing the amount of theoretical background information. The book also goes beyond simply presenting what the technology is, but also examines why the technology is the way it is, the history of its development, standardization, and deployment. The book also describes how each technology is used, what problems it was designed to solve, what problems it was not designed to solve., how it relates to other technologies in the marketplace, and internetworking challenges faced withing the context of the Internet, as well as providing deployment trends and standardization trends. Finally, this book decomposes evolving wireless technologies to identify key technical and usage trends in order to discuss the likely characteristics of future wireless networks.

Provides a comprehensive introduction to the latest research in networking Explores implementation issues and research challenges Focuses on applications and enabling technologies Covers wireless technologies, Big Data, IoT, and other emerging research areas Features contributions from worldwide experts

Updated edition of this top-selling CWNA study guide Sybex is the official publisher for CWNP, Inc., the organization behind the the CWNA certification. The new edition of Sybex's top-selling CWNA Study Guide covers the latest CWNA Exam, PW0-105. If you're preparing for the exam, you'll find full coverage of radio frequency (RF) technologies, as well as IEEE 802.11 regulations and standards, protocols and devices, network security, and much more. This detailed book not only covers all exam objectives, it also includes practical chapter review questions and hands-on exercises. The book's website offers additional practice exams and flashcards, demo software, and more. Prepares you for Exam PW0-105, the new CWNA exam administered by the Certified Wireless Network Professional, Inc. Covers all exam objectives, including radio frequency (RF) technologies and IEEE 802.11 regulations and standards, protocols and devices, network implementation, network security, and RF site surveying Includes practical examples and review questions to reinforce learning Discusses the latest information on wireless trends, protocols, and standards--helpful whether you're preparing for the exam or not Provides additional practice exams, electronic flashcards, demo software, and more from the book's accompanying website CWNA certification is the foundation for any professional who uses wireless networks--and a springboard to more advanced wireless certifications. Get started today with this detailed CWNA prep guide. Note: CD-ROM materials for eBook purchases can be downloaded from http://booksupport.wiley.com.

"Catalog of travelling photographic exhibition of royal Indonesian letters and manuscripts from British collections".

An author subject index to selected general interest periodicals of reference value in libraries.

The MediFocus Guidebook on Bladder Cancer is the most comprehensive, up-to-date source of information available. You will get answers to your questions, including risk factors of Bladder Cancer, standard and alternative treatment options, leading doctors, hospitals and medical centers that specialize in Bladder Cancer, results of the latest clinical trials, support groups and additional resources, and promising new treatments on the horizon. This one of a kind Guidebook offers answers to your critical health questions including the latest treatments, clinical trials, and expert research; high quality, professional level information you can trust and understand culled from the latest peer-reviewed journals; and a unique resource to find leading experts, institutions, and support organizations including contact information and hyperlinks. This Guidebook was updated on January 27, 2012.

This textbook provides a comprehensive and state-of-the-art overview of the major issues specific to the field of pediatric gastroenterology, hepatology, and nutrition. The first part of the book, Gastroenterology and Nutrition, presents in a systematic way the overall scope of issues encountered by children (newborn to teenagers) suffering from disorders of the gastrointestinal tract, pancreas and/or presenting nutritional issues. These chapters are structured in logical sections to facilitate consultation and include major topics ranging from congenital disorders to gastrointestinal problems of the newborn, infectious diseases of the gastrointestinal tract, and approach to nutritional problems in the various pediatric ages. The second part of the book, Hepatology, is articulated in a series of chapters which present a comprehensive review of congenital and acquired disorders of the biliary tract and liver. This section also includes a critical analysis of available diagnostic and therapeutic procedures and future perspectives. Written by experts in the field, Textbook of Pediatric Gastroenterology, Hepatology and Nutrition: A Comprehensive Guide to Practice constitutes a much needed, innovative resource combining updated, reliable and comprehensive information with agile consultation for a streamlined approach to the care of children with such disorders.