802 11ac A Survival Guide 1st Edition by Matthew Gast ISBN 978-1449343149 1449343147
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Product details:
ISBN 10: 1449343147
ISBN 13: 978-1449343149
Author: Matthew Gast
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 LANExplore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMOLearn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneouslyPlan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections
Table of contents:
1. Introduction to 802.11ac.
History
The Core Technology of 802.11ac
Beamforming and Multi-User MIMO (MU-MIMO)
Operating Frequency Band for 802.11ac
802.11ac Product Development Plans
2. The PHY
Extended MIMO Operations
Radio Channels in 802.11ac
Radio Channel Layout
Available Channel Map
Transmission: Modulation, Coding, and Guard Interval
Modulation and Coding Set (MCS)
Guard Interval
Error-Correcting Codes
PHY-Level Framing
The VHT Signal Fields
The Data Field
The Transmission and Reception Process
802.11ac Data Rates
802.11ac Data Rate Matrix
Comparison of 802.11ac Data Rates to Other 802.11 PHYS
Mandatory PHY Features
3. The MAC
Framing
Frame Size and Aggregation
Management Frames
Medium Access Procedures
Clear-Channel Assessment (CCA)
Protection and Coexistence of 802.11ac with Older 802.11 Devices
Dynamic Bandwidth Operation (RTS/CTS)
Security
Mandatory MAC Features
4. Beamforming in 802.11ac
Beamforming Basics
Null Data Packet (NDP) Beamforming in 802.11ac
Single-User (SU) Beamforming
Channel Calibration for Single-User Beamforming
Multi-User (MU) Beamforming
Channel Calibration for Multi-User Beamforming
Multi-User MIMO Transmission
MU-MIMO Implementation
5. 802.11ac Planning
Getting Ready for 802.11ac
Catching the 802.11ac Technology Wave
Client Device Mix
Application Planning
Physical Network Connections
Security
Additional Planning Considerations
802.11ac Radio Planning
Available Radio Channels
Coverage and Capacity Estimates
Equipment Selection
Network Architecture for 802.11ac
Hardware Considerations
Building an 802.11ac Network
Channel Selection
Network Tuning and Optimization
Checklist
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Tags: Matthew Gast, A Survival Guide