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Wi-Fi 7 In Depth

Your guide to mastering Wi-Fi 7, the 802.11be protocol, and their deployment

Specificaties
Paperback, blz. | Engels
Pearson Education | e druk, 2025
ISBN13: 9780135323618
Rubricering
Pearson Education e druk, 2025 9780135323618
Verwachte levertijd ongeveer 9 werkdagen

Samenvatting

An essential guide for networking professionals responsible for implementing Wi-Fi 7

Join wireless networking experts Jerome Henry, Brian Hart, Binita Gupta, and Malcolm Smith on this deep dive into Wi-Fi 7 and 802.11be. The authors explore how to design and optimize your network to fully leverage Wi-Fi 7's new capabilities.

You will learn in detail the inner workings of Wi-Fi 7 improvements like rTWT, puncturing, triggered uplink access, and SCS QC. You will explore the new possibilities of multi-link operations and learn why clients will come in five possible MLO modes that dramatically change the expectations you can have for their performances. You’ll gain practical, real-world insights into protocol implementation and its effects on cell design, roaming efficiency, and overall network performance. 

This book is an invaluable resource for anyone who designs, manages, and optimizes wireless networks or works with 802.11, from network architects and wireless network administrators to network engineers and anyone whose job includes the need to face the Wi-Fi 7 wave or understand 802.11be and its challenges in depth.

Whether you are new to IEEE 802.11 standards or looking to deepen your understanding of the latest wireless networking advancements, this book gives you the knowledge and expertise to stay ahead in the evolving Wi-Fi technology landscape.

Includes a foreword by Matt MacPherson (CTO of Wireless, Cisco Systems)

In this book, you will: Understand the foundational concepts of Wi-Fi and the 802.11be protocol Explore the challenges and balance of backward compatibility in Wi-Fi 7 development Learn about the enhancements introduced in Wi-Fi 6 and Wi-Fi 6E and their impact on 802.11be Explore the enhancements in transmission and reception techniques, channel structure and multi-user access management Learn about Multi-Link Operation (MLO) and its five different modes Understand Quality of Service (QoS) mechanisms and priority scheduling Examine site survey and network planning considerations specific to Wi-Fi 7 deployments

Specificaties

ISBN13:9780135323618
Taal:Engels
Bindwijze:Paperback

Inhoudsopgave

<p>Foreword by Matt MacPherson</p> <p>Preface</p> <p>&nbsp;</p> <p><strong>Chapter 1: Wi-Fi Fundamentals.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .</strong> <strong>2</strong></p> <p>Evolution of 802.11 Standards.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2</p> <p>The 802.11 Architecture.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4</p> <p>The 802.11 Connection Process.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15</p> <p>Channel Access Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25</p> <p>&nbsp;</p> <p><strong>Chapter 2: Reaching the Limits of Traditional Wi-Fi .. . . . . . . . . . . . . . . . . . . . . . . 26</strong></p> <p>The Burden of Roaming.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26</p> <p>A Limited QoS Scheme.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30</p> <p>Coexistence Challenges.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37</p> <p>802.11 Security.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57</p> <p>&nbsp;</p> <p><strong>Chapter 3: Building on the Wi-Fi 6 Revolution.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58</strong></p> <p>Channel Efficiency Improvements.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58</p> <p>Functional Improvements.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70</p> <p>Wi-Fi in the 6 GHz Band.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97</p> <p>&nbsp;</p> <p><strong>Chapter 4: The Main Ideas in 802.11be and Wi-Fi 7 . . . . . . . . . . . . . . . . . . . . . . . . 98</strong></p> <p>Pressure from the Market and Previous Generations’ Limitations. . . . . . . . . . . . . . . . . 99</p> <p>Wi-Fi 7 Expected Challenges.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131</p> <p>&nbsp;</p> <p><strong>Chapter 5: EHT Physical Layer Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . 134</strong></p> <p>Wi-Fi7 in a Nutshell.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134</p> <p>Purposes and Opportunities for the Physical Layer.. . . . . . . . . . . . . . . . . . . . . . . . . . . 136</p> <p>PPDU Formats and Their Fields.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139</p> <p>Construction of the Data Field.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144</p> <p>Major Wi-Fi 7 PHY Innovations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149</p> <p>Minor Wi-Fi 7 PHY Innovations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169</p> <p>PHY Capability Signaling.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174</p> <p>&nbsp;</p> <p><strong>Chapter 6: EHT MAC Enhancements for Multi-Link Operation . . . . . . . . . . . . . . 176</strong></p> <p>MLO Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176</p> <p>MLD Discovery and Association. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182</p> <p>MLD Data Plane.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194</p> <p>MLO Modes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198</p> <p>ML Reconfiguration.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207</p> <p>Link Management.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213</p> <p>Other MLO Enhancements.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218</p> <p>Summary.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221</p> <p>&nbsp;</p> <p><strong>Chapter 7: EHT MAC Operation and Key Features . . . . . . . . . . . . . . . . . . . . . . . 222</strong></p> <p>EHT BSS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222</p> <p>Enhanced SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233</p> <p>Restricted TWT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245</p> <p>Triggered TXOP Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252</p> <p>EPCS Priority Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257</p> <p>Wi-Fi 7 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263</p> <p>Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265</p> <p>&nbsp;</p> <p><strong>Chapter 8: Wi-Fi 7 Network Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268</strong></p> <p>WLAN Design Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268</p> <p>Designing for Wi-Fi 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284</p> <p>Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296</p> <p>&nbsp;</p> <p><strong>Chapter 9: Future Directions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . &nbsp;. . . . . . . 298</strong></p> <p>Wi-Fi 8 Directions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . &nbsp;298</p> <p>Localization and Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . &nbsp;313</p> <p>A Privacy-Respecting 802.11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328</p> <p>Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338</p> <p>&nbsp;</p> <p>Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . &nbsp;. . . . . . . . . . . . . . . . . . . . . . . 340</p>

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