Synopses & Reviews
Wireless has finally come of age. With a significant jump in throughput over previous standards, 802.11n is the first wireless technology that doesnt 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 MIMOs 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
Synopsis
If you're involved in deploying wireless networking services, you need to keep up with the state of the art. 802.11n is a 100 Mbps wireless protocol that's the successor to 802.11g. This ebook tells you everything you need to know about this important new protocol.
About the Author
Matthew Gast works in the Office of the CTO at Trapeze Networks, where he leads the development of open wireless network standards and their application to the Trapeze architecture. He is a member of the IEEE 802.11 working group, and serves as chair of 802.11 Task Group M. As chair of the Wi-Fi Alliance's Wireless Network Management marketing task group, he is leading the investigation of certification requirements for power saving, performance optimization, and location and timing services. Matthew also chairs the Security Technical task group, which is extending Wi-Fi protected Access (WPA) certification to incorporate newly-developed security mechanisms so that it remains the strongest form of protection available for Wi-Fi networking. In 2007, Matthew was a founder of the OpenSEA Alliance, a group organized to support the development of open-source network security solutions. He currently serves on the engineering steering committee, the organization's board of directors, and as its corporate secretary. Matthew's most recent book, 802.11 Wireless Networks: The Definitive Guide (O'Reilly Media), now in its second edition, is the top selling reference work in the field and has been translated into six languages.
Table of Contents
Foreword; Preface; Audience; Conventions Used in This Book; Using Code Examples; Safari® Books Online; How to Contact Us; Acknowledgments; Chapter 1: Introduction to 802.11n-2009; 1.1 History; 1.2 The Technology of 802.11n; 1.3 802.11n: First We Take the LAN, Then We Take the World; The PHY; Chapter 2: MIMO and the 802.11n PHY; 2.1 The Big Idea: MIMO and Data Streams; Chapter 3: Channels, Framing, and Coding; 3.1 Channel Structure and Layout; 3.2 Transmission: Modulation and Guard Interval; 3.3 PLCP Framing; 3.4 Transmission and Reception Process; 3.5 802.11n Speed; 3.6 Mandatory PHY Features; Chapter 4: Advanced PHY Features for Performance; 4.1 Beamforming; 4.2 Space-Time Block Code (STBC); 4.3 Low-Density Parity Check (LDPC); The MAC; Chapter 5: MAC Basics; 5.1 Frame Changes; 5.2 Airtime Efficiency Improvements; 5.3 Protection of Non-HT Transmissions; 5.4 Security; 5.5 Mandatory MAC Features; Chapter 6: Advanced MAC Features for Interoperability; 6.1 Radio Medium Coordination; 6.2 Power-Saving; Using 802.11n to Build a Network; Chapter 7: Planning an 802.11n Network; 7.1 What's On Your Network?; 7.2 Network Integration; 7.3 Security; 7.4 Design Checklist; Chapter 8: Designing and Installing an 802.11n Network; 8.1 Network Architecture for 802.11n; 8.2 802.11n Hardware; 8.3 Coverage and Capacity Planning; 8.4 Network Management; 8.5 Implementation Checklist; Afterword; Glossary;