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Wi-Fi 6 Protocol and Network Unabridged edition [Kõva köide]

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  • Formaat: Hardback, 240 pages, kõrgus x laius: 229x152 mm
  • Ilmumisaeg: 31-Aug-2021
  • Kirjastus: Artech House Publishers
  • ISBN-10: 1630818429
  • ISBN-13: 9781630818425
Teised raamatud teemal:
Wi-Fi 6 Protocol and Network Unabridged editionSuurem pilt
  • Formaat: Hardback, 240 pages, kõrgus x laius: 229x152 mm
  • Ilmumisaeg: 31-Aug-2021
  • Kirjastus: Artech House Publishers
  • ISBN-10: 1630818429
  • ISBN-13: 9781630818425
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9781630818425.html
Märksõnad:
With more than 15 billion Wi-Fi enabled devices, Wi-Fi has proven itself as a technology that has successfully evolved over the past 25 years. The need for high-speed connectivity is growing, as Wi-Fi has evolved into a fundamental utility that is expected to be available everywhere. This comprehensive resource covers six generations of Wi-Fi standards including protocol, implementation, and network deployment for both residential and enterprise environments. It will provide readers with a new understanding of how to approach and debug basic Wi-Fi problems, and will grant those wondering whether to pick 5G or Wi-Fi 6 for their product the clarity needed to make an informed decision.





Readers will find in-depth coverage of Wi-Fi encryption and authentication methods, including explorations of recently uncovered security vulnerabilities and how to fix them. This book also provides detailed information on the implementation of Wi-Fi, including common regulatory and certification requirements, as well its associated challenges. This book also provides direction on the placement of Wi-Fi access points in indoor locations. It introduces the most recent Wi-Fi 6E certification, which defines requirements for devices operating on the newly opened 6 GHz band. Wi-Fi 6 is then compared with 5G technology, and this resource provides insight into the benefits of each as well as how these two technologies can be used to complement each other.
Acknowledgments xiii
Chapter 1 Introduction 1(6)
1.1 IEEE Standardization Process
2(1)
1.2 Wi-Fi Alliance
3(2)
1.3 Spectrum
5(1)
1.4 Outline of
Chapters
5(2)
Chapter 2 Wi-Fi 1 to 5 Overview 7(44)
2.1 MAC Layer Overview
8(26)
2.1.1 Network Architecture
8(2)
2.1.2 MAC Frame Format and Types
10(2)
2.1.3 Medium Access Rules
12(6)
2.1.4 AP Discovery Process
18(1)
2.1.5 Connection Establishment and Termination
19(1)
2.1.6 Off-Channel Scanning
20(1)
2.1.7 Quality of Service
21(2)
2.1.8 Fragmentation and Aggregation
23(3)
2.1.9 STA Power Save Methods
26(6)
2.1.10 Multicast Traffic
32(1)
2.1.11 STA Roaming
32(2)
2.1.12 AP Channel Switching
34(1)
2.2 PHY Layer Overview
34(15)
2.2.1 Wi-Fi Generation 1 (802.11b)
35(2)
2.2.2 Wi-Fi Generation 2 (802.11a)
37(2)
2.2.3 Wi-Fi Generation 3 (802.11g)
39(1)
2.2.4 Wi-Fi Generation 4 (802.11n)
39(5)
2.2.5 Wi-Fi Generation 5 (802.11ac)
44(5)
2.3 References
49(2)
Chapter 3 Wi-Fi 6 51(52)
3.1 HE PPDU Formats
52(2)
3.1.1 Long OFDM Symbol
53(1)
3.1.2 GI and HE LTF
54(1)
3.2 Single User Operation
54(6)
3.2.1 Coding and Modulation
54(1)
3.2.2 Dual Carrier Modulation
55(1)
3.2.3 HE TxBf and Channel Sounding
55(2)
3.2.4 Midamble
57(1)
3.2.5 Multi-TID AMPDU
58(1)
3.2.6 Blockack Length
58(1)
3.2.7 Aggregation Limits
59(1)
3.2.8 Duration-based RTS-CTS
59(1)
3.3 Multiuser Operation
60(15)
3.3.1 OFDMA Resource Unit Allocation
60(1)
3.3.2 Downlink MU Operation
61(2)
3.3.3 Uplink MU Operation
63(5)
3.3.4 Trigger Frame Types
68(3)
3.3.5 Buffer Status Report
71(3)
3.3.6 MU EDCA
74(1)
3.4 Target Wake Time
75(4)
3.4.1 TWT Agreement Setup
76(1)
3.4.2 Types of TWT Agreements
77(1)
3.4.3 TWT Summary
78(1)
3.5 BSS Coloring
79(2)
3.5.1 BSS Color Collision
80(1)
3.5.2 BSS Color Change Announcement
81(1)
3.6 Spatial Reuse
81(5)
3.6.1 OBSS PD-based SR
81(3)
3.6.2 PSR-based SR
84(1)
3.6.3 Practical Challenges in SR
85(1)
3.7 Enhanced Multi-BSSID Advertisement
86(2)
3.7.1 Profile Periodicity
88(1)
3.8 Preamble puncturing
88(1)
3.9 Operating Mode Indication
89(1)
3.10 HE Capability Advertisement
90(1)
3.11 When to do SU, MU-MIMO and MU-OFDMA
90(11)
3.11.1 Examples
93(8)
3.12 References
101(2)
Chapter 4 Wi-Fi Security 103(24)
4.1 Wired Equivalent Privacy
104(2)
4.1.1 WEP Authentication
104(1)
4.1.2 WEP Encryption
104(1)
4.1.3 WEP Vulnerabilities
105(1)
4.2 Wi-Fi Protected Access
106(4)
4.2.1 WPA Personal
106(2)
4.2.2 WPA Enterprise
108(1)
4.2.3 WPA Encryption
109(1)
4.2.4 Message Integrity Check
109(1)
4.3 WPA2
110(4)
4.3.1 WPA2 Authentication
110(1)
4.3.2 WPA2 Encryption
110(1)
4.3.3 Message Integrity Check
111(1)
4.3.4 PMK Caching
111(1)
4.3.5 Opportunistic Key Caching
112(1)
4.3.6 Fast BSS Transition
112(1)
4.3.7 Protected Management Frames
112(1)
4.3.8 Wi-Fi Protected Setup
113(1)
4.4 Key Reinstallation Attack
114(1)
4.5 WPA3
114(5)
4.5.1 WPA3 Authentication
115(2)
4.5.2 WPA3 Encryption
117(1)
4.5.3 WPA3 Transition Mode
117(1)
4.5.4 Device Provisioning Protocol
117(1)
4.5.5 Opportunistic Wireless Encryption
118(1)
4.6 Multichannel Man-in-the-Middle
119(2)
4.6.1 Operation Channel Validation
120(1)
4.6.2 Beacon Protection
121(1)
4.7 Fragmentation and Aggregation Attacks
121(1)
4.8 Rogue AP Detection
122(1)
4.9 Summary
123(1)
4.10 References
124(3)
Chapter 5 Wi-Fi Implementation 127(30)
5.1 Hardware
127(11)
5.1.1 Radio Requirements
129(7)
5.1.2 Host Processor
136(1)
5.1.3 Memory Size
137(1)
5.2 Software
138(8)
5.2.1 Rate Adaptation
138(2)
5.2.2 Scheduler
140(1)
5.2.3 Buffer management
141(1)
5.2.4 Packet Processing Speed
142(1)
5.2.5 Channel Selection
143(1)
5.2.6 STA Roaming Algorithm
144(1)
5.2.7 STA Power Save Algorithm
145(1)
5.2.8 Capability Advertisements
145(1)
5.3 Regulatory Requirements
146(6)
5.3.1 Allowed Channel Frequencies
146(1)
5.3.2 In-Band Power and Out-of-Band Emission Limits
147(3)
5.3.3 Dynamic Frequency Selection
150(2)
5.4 Wi-Fi Certifications
152(3)
5.5 References
155(2)
Chapter 6 Wi-Fi 6E 157(18)
6.1 6-GHz Channelization
158(1)
6.2 AP Discovery
158(3)
6.2.1 Minimizing Probe Traffic
159(1)
6.2.2 Out-of-Band Discovery of a 6-GHz AP
160(1)
6.2.3 Fast Passive Scanning of a 6-GHz Only AP
161(1)
6.3 EMA support in 6 GHz
161(1)
6.4 Security Modes in 6 GHz
162(1)
6.5 Beacon Advertisement and PHY Rates in 6 GHz
162(1)
6.6 On Channel Tunneling
163(1)
6.7 Fast Initial Link Setup
164(3)
6.7.1 FILS and Fast BSS Transition
166(1)
6.8 6-GHz Regulatory Requirements
167(3)
6.8.1 FCC
167(3)
6.8.2 ETSI
170(1)
6.9 Wi-Fi 6E Certification
170(1)
6.10 Wi-Fi 6E Implementation Challenges
170(1)
6.11 160-MHz Multiple AP Deployment in 6 GHz
171(2)
6.12 References
173(2)
Chapter 7 Wi-Fi Deployment 175(20)
7.1 Residential Wi-Fi Deployment
175(3)
7.1.1 Mesh
176(1)
7.1.2 AP Placement
177(1)
7.1.3 Channel Bandwidth Selection
177(1)
7.2 Enterprise Indoor Wi-Fi Deployment
178(13)
7.2.1 Power over Ethernet
178(1)
7.2.2 Choosing AP Specification
179(1)
7.2.3 Channel Bandwidth Selection
180(3)
7.2.4 Estimating the Number of APs
183(6)
7.2.5 Mitigating Inter-AP Interference
189(1)
7.2.6 Upgrading Existing Deployment
190(1)
7.2.7 Reducing Overhead in High-Density Deployments
191(1)
7.3 Outdoor Wi-Fi Deployment
191(1)
7.4 Post Deployment Site Survey
192(1)
7.5 References
193(2)
Chapter 8 5G Overview and Wi-Fi Comparison 195(14)
8.1 Evolution of Cellular Technologies (1G-4G)
197(2)
8.1.1 First Generation Cellular Technologies
197(1)
8.1.2 Second Generation Cellular Technologies
197(1)
8.1.3 Third Generation Cellular Technologies
198(1)
8.1.4 Fourth Generation Cellular Technologies
199(1)
8.2 Fifth Generation Cellular Technology
199(4)
8.3 Comparison with Wi-Fi
203(3)
8.3.1 Technology
203(1)
8.3.2 Security
204(1)
8.3.3 Ease of Deployment
204(1)
8.3.4 Total Cost of Ownership
204(1)
8.3.5 Use Cases
205(1)
8.4 Summary
206(1)
8.5 References
207(2)
Chapter 9 Conclusion 209(2)
List of Acronyms and Abbreviations 211(10)
About the Authors 221(2)
Index 223