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
Chapter 1 Introduction to 802.11n-2009
The Technology of 802.11n
802.11n: First We Take the LAN, Then We Take the World
Chapter 2 MIMO and the 802.11n PHY
The Big Idea: MIMO and Data Streams
Chapter 3 Channels, Framing, and Coding
Channel Structure and Layout
Transmission: Modulation and Guard Interval
Transmission and Reception Process
Mandatory PHY Features
Chapter 4 Advanced PHY Features for Performance
Space-Time Block Code (STBC)
Low-Density Parity Check (LDPC)
Chapter 5 MAC Basics
Airtime Efficiency Improvements
Protection of Non-HT Transmissions
Mandatory MAC Features
Chapter 6 Advanced MAC Features for Interoperability
Radio Medium Coordination
Using 802.11n to Build a Network
Chapter 7 Planning an 802.11n Network
What’s On Your Network?
Chapter 8 Designing and Installing an 802.11n Network
Matthew Gast is the director of product management at Aerohive Networks, responsible for the software that powers Aerohive's networking devices. He has been active within the Wi-Fi community, serving as the chair of both security task groups at the Wi-Fi Alliance, where he leads efforts to extend the Wi-Fi Protected Access (WPA) certification to incorporate newly developed security technologies and drive adoption of the strongest forms of security by network administrators. He also led the Wi-Fi Alliance's Wireless Network Management marketing task group's investigation of certification requirements for new power-saving technologies. Matthew is also the past chair of the task group that produced the 802.11-2012 revision.