Written for network engineers by highly experienced wireless and Ethernet experts, this title is one of the first to provide the know-how for enterprise implementations.
The first generation 802.11 wireless market, once struggling to expand, has spread from largely vertical applications such as healthcare, point of sale, and inventory management to become much more broad as a general networking technology being deployed in offices, schools, hotel guest rooms, airport departure areas, airplane cabins, entertainment venues, coffee shops, restaurants, and homes. This has led to the tremendous growth of new sources of IEEE 802.11 devices. IEEE 802.11 equipment is now moving into its second stage, where the wireless LAN is being treated as a large wireless communication system. As a system, there is more to consider than simply the communication over the air between a single access point and the associated mobile devices. This has lead to innovative changes in the equipment that makes up a wireless LAN. The IEEE 802.11 Handbook: A Designer’s Companion, Second Edition is for the system network architects, hardware engineers and software engineers at the heart of this second stage in the evolution of 802.11 wireless LANs and for those designers that will take 802.11 to the next stage.
This definitive handbook demystifies personal-area networking technologies and protocols and explores their application potential in a unique real-world context.
WiMAZ, a new wireless broadband technology, is revolutionary because it's cheaper and simpler than existing broadband options. This book provides a basic technical introduction to WiMAX, allowing engineers, technologists, and decision-makers to manage this potentially disruptive technology.
The next frontier for wireless LANs is 802.11ac, a standard that increases throughput beyond one gigabit per second. This concise guide provides in-depth information to help you plan for 802.11ac, with technical details on design, network operations, deployment, and monitoring. Author Matthew Gast—an industry expert who led the development of 802.11-2012 and security task groups at the Wi-Fi Alliance—explains how 802.11ac will not only increase the speed of your network, but its capacity as well. Whether you need to serve more clients with your current level of throughput, or serve your existing client load with higher throughput, 802.11ac is the solution. This book gets you started. Understand how the 802.11ac protocol works to improve the speed and capacity of a wireless LAN Explore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMO Learn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneously Plan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections
As we all know by now, wireless networks offer many advantages over fixed (or wired) networks. Foremost on that list is mobility, since going wireless frees you from the tether of an Ethernet cable at a desk. But that's just the tip of the cable-free iceberg. Wireless networks are also more flexible, faster and easier for you to use, and more affordable to deploy and maintain.The de facto standard for wireless networking is the 802.11 protocol, which includes Wi-Fi (the wireless standard known as 802.11b) and its faster cousin, 802.11g. With easy-to-install 802.11 network hardware available everywhere you turn, the choice seems simple, and many people dive into wireless computing with less thought and planning than they'd give to a wired network. But it's wise to be familiar with both the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start.This updated edition covers everything you'll ever need to know about wireless technology. Designed with the system administrator or serious home user in mind, it's a no-nonsense guide for setting up 802.11 on Windows and Linux. Among the wide range of topics covered are discussions on: deployment considerations network monitoring and performance tuning wireless security issues how to use and select access points network monitoring essentials wireless card configuration security issues unique to wireless networks With wireless technology, the advantages to its users are indeed plentiful. Companies no longer have to deal with the hassle and expense of wiring buildings, and households with several computers can avoid fights over who's online. And now, with 802.11 Wireless Networks: The Definitive Guide, 2nd Edition, you can integrate wireless technology into your current infrastructure with the utmost confidence.
Radio engineering refers to the study and development of devices which have been designed to operate in the radio frequency spectrum between 3 kHz to 300 GHz. This includes all devices that transmit or receive a radio wave, like two-way radios, mobile phones and Wi-Fi. Wireless technology is associated with the transmission of information between two remote points without the presence of any electrical conductor. Radio waves are the primarily used wireless technology in GPS units, satellite television, wireless headphones, etc. The application of radio engineering and wireless technology are present in diverse industries. This book aims to provide detailed information about the modern concepts and theories related to this field. It elucidates the innovative models around prospective developments with respect to radio engineering and wireless technology. The various studies that are constantly contributing towards advancing technologies and evolution of these fields have also been included herein. This book is appropriate for students seeking detailed information in this area as well as for experts.
Learn to secure Web sites built on open source CMSs Web sites built on Joomla!, WordPress, Drupal, or Plone face some unique security threats. If you’re responsible for one of them, this comprehensive security guide, the first of its kind, offers detailed guidance to help you prevent attacks, develop secure CMS-site operations, and restore your site if an attack does occur. You’ll learn a strong, foundational approach to CMS operations and security from an expert in the field. More and more Web sites are being built on open source CMSs, making them a popular target, thus making you vulnerable to new forms of attack This is the first comprehensive guide focused on securing the most common CMS platforms: Joomla!, WordPress, Drupal, and Plone Provides the tools for integrating the Web site into business operations, building a security protocol, and developing a disaster recovery plan Covers hosting, installation security issues, hardening servers against attack, establishing a contingency plan, patching processes, log review, hack recovery, wireless considerations, and infosec policy CMS Security Handbook is an essential reference for anyone responsible for a Web site built on an open source CMS.
The mass arrival of broadband has caused a revolution on the internet. The major activity online is now the downloading of music and video files. Music download services offer millions of songs for immediate download to users and where music has led, film is about to follow.Nearly all music and film content has now been turned into digital content and is available in some shape or form online. But where can all this be found? Is it safe to download? And what about the legal issues? These are questions which this book answers. Written in straight-forward language this book is a practical guide to: - Setting up a computer to download files over the internet in a safe environment- What programs to use to download and play music and video files- Where to find free and paid-for media files on the net- Which portable MP3 players to buy- How to navigate around all file-sharing networks- How not be fazed by all the jargon like MP3, OGG and DivX- How to understand the legal position when you download filesThe book is not for computer experts, but for people with ordinary home PCs who want to join the entertainment revolution. Your computer has turned into tomorrow's entertainment center - this book shows you how to take simple control of it. Millions of users globally are online, downloading music and video day in, day out. You can either ignore the revolution, or start downloading now!