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9780071454018
WiMAX Handbook: Building 802.16 Networks / Edition 1 available in Hardcover
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WiMAX Handbook: Building 802.16 Networks / Edition 1
by Frank Ohrtman
Frank Ohrtman
- ISBN-10:
- 0071454012
- ISBN-13:
- 9780071454018
- Pub. Date:
- 05/24/2005
- Publisher:
- McGraw Hill LLC
- ISBN-10:
- 0071454012
- ISBN-13:
- 9780071454018
- Pub. Date:
- 05/24/2005
- Publisher:
- McGraw Hill LLC
![WiMAX Handbook: Building 802.16 Networks / Edition 1](http://img.images-bn.com/static/redesign/srcs/images/grey-box.png?v11.11.4)
WiMAX Handbook: Building 802.16 Networks / Edition 1
by Frank Ohrtman
Frank Ohrtman
Hardcover
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Overview
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.
Wi-MAX is a big deal because it’s cheaper, smaller, simpler and easier to use than any existing broadband option (DSL, cable, fiber, 3G wireless) – it also bypasses the existing wired infrastructure and legacy service providers (i.e. the phone and cable companies). This book provides a basic technical introduction to the IEEE standard, allowing engineers, technologists, and decision-makers to ascertain how this hugely disruptive technology is going to affect their businesses.
Wi-MAX is a big deal because it’s cheaper, smaller, simpler and easier to use than any existing broadband option (DSL, cable, fiber, 3G wireless) – it also bypasses the existing wired infrastructure and legacy service providers (i.e. the phone and cable companies). This book provides a basic technical introduction to the IEEE standard, allowing engineers, technologists, and decision-makers to ascertain how this hugely disruptive technology is going to affect their businesses.
Product Details
ISBN-13: | 9780071454018 |
---|---|
Publisher: | McGraw Hill LLC |
Publication date: | 05/24/2005 |
Series: | McGraw-Hill Communications |
Pages: | 288 |
Product dimensions: | 7.20(w) x 9.30(h) x 0.80(d) |
About the Author
Frank Ohrtman (Denver, CO) is the Founder of Softswitch Consulting, a telecommunications consulting firm. He previously held positions with Vsys, Lucent, and Netrix, and is a former U.S Navy Intelligence Officer. He is the author of Softswitch and The Wi-Fi Handbook.
Table of Contents
Acknowledgments | xxi | |
Preface | xxiii | |
Chapter 1 | Introduction | 1 |
Telecommunications Networks - The Need for an Alternative Form of Access | 3 | |
Switching | 4 | |
Transport | 4 | |
Access | 5 | |
Replacing the PSTN One Component at a Time | 5 | |
Objections to Wireless Networks | 6 | |
QoS | 6 | |
Security | 6 | |
Interference Mitigation | 6 | |
Economic Advantage of WiMAX | 7 | |
Regulatory Aspects of Wireless Networks | 8 | |
Improved Quality of Life with Wireless Networks | 8 | |
Disruptive Technology | 9 | |
Disruption for Telephone Companies | 10 | |
Disruption for Cable TV and Satellite TV Companies | 10 | |
Disruption for Cell Phone Companies | 10 | |
Disruption for the Backhaul Industry | 10 | |
Conclusion | 11 | |
Chapter 2 | WiMAX: The Physical Layer (PHY) | 13 |
Introduction | 14 | |
The Function of the PHY | 15 | |
OFDM: The "Big So What?!" of WiMAX | 16 | |
TDD and FDD | 17 | |
Adaptive Antenna System (AAS) | 18 | |
WiMAX Variants | 18 | |
OFDM Variants 2-11 GHz | 19 | |
Single Carrier (SC) Variants | 22 | |
Conclusion | 27 | |
Chapter 3 | The Medium Access Control (MAC) Layer | 29 |
The MAC as the "Smarts" for the Physical Layer | 30 | |
The MAC and WiMAX Architecture | 30 | |
Service Classes and QoS | 32 | |
Service-Specific Convergence Sublayers | 34 | |
Common Part Sublayer | 35 | |
Packing and Fragmentation | 37 | |
PDU Creation and Automatic Repeat Request (ARQ) | 37 | |
Transmission Convergence (TC) Layer | 39 | |
Chapter 4 | How WiMAX Works | 41 |
Channel Acquisition | 42 | |
Initial Ranging and Negotiation of SS Capabilities | 42 | |
SS Authentication and Registration | 44 | |
IP Connectivity | 44 | |
Connection Setup | 45 | |
Radio Link Control (RLC) | 46 | |
The UL | 48 | |
Service Flow | 49 | |
Conclusion | 51 | |
Chapter 5 | Quality of Service (QoS) on WiMAX | 53 |
Overview | 54 | |
The Challenge | 54 | |
Legacy QoS Mechanisms | 55 | |
FDD/TDD/OFDM | 55 | |
Forward Error Correction (FEC) | 56 | |
Bandwidth Is the Answer - What Was the Question? | 57 | |
QPSK Versus QAM | 63 | |
Multiplexing in OFDM | 64 | |
What OFDM Means to WiMAX | 66 | |
QoS: Error Correction and Interleaving | 66 | |
QoS Measures Specific to the WiMAX Specification | 67 | |
Theory of Operation | 67 | |
Service Flows | 68 | |
The Object Model | 70 | |
Service Classes | 71 | |
Authorization | 71 | |
Types of Service Flows | 72 | |
Service Flow Management | 74 | |
Conclusion | 75 | |
Chapter 6 | Dealing with Interference with WiMAX | 77 |
Interference - Some Assumptions | 78 | |
Defining Interference or "Think Receiver" | 78 | |
Forms of Interference | 79 | |
Countering Interference | 82 | |
Changing Channels Within the ISM or U-NII Bands | 83 | |
Dealing with Distance | 84 | |
Internal (CoCH) Sources of Interference | 85 | |
OFDM in Overcoming Interference | 86 | |
Handling ISI | 88 | |
Mitigating Interference with Antenna Technology | 89 | |
Multiple Antennas: AAS | 89 | |
Adaptive Antenna (AA) Techniques | 91 | |
Dynamic Frequency Selection (DFS) | 93 | |
If You Want Interference, Call the Black Ravens | 93 | |
Chapter 7 | Security and 802.16 WiMAX | 95 |
Security in WiMAX Networks | 96 | |
The Security Sublayer | 96 | |
The PKM Protocol | 100 | |
TEK Exchange Overview | 102 | |
Cryptographic Methods | 102 | |
Conclusion | 104 | |
Chapter 8 | WiMAX VoIP | 105 |
PSTN Architecture | 106 | |
Voice Over WiMAX-The Challenge | 107 | |
VoIP | 107 | |
Origins of VoIP | 107 | |
How Does VoIP Work? | 108 | |
VoIP Signaling Protocols | 109 | |
Switching | 113 | |
Softswitch (aka Gatekeeper, Media Gateway Controller) | 113 | |
Other Softswitch Components | 115 | |
VoIP and Softswitch Pave the Way for Voice Over WiMAX | 117 | |
Objections to VoIP Over WiMAX | 117 | |
Objection One: Voice Quality of WiMAX VoIP | 118 | |
Solution: Voice Codecs Designed for VoIP, Especially VoIP Over WiMAX | 122 | |
Modifying Voice Codecs to Improve Voice Quality | 122 | |
The QoS Solution: Fix Circuit-Switched Voice Codecs in a Packet Switched, Wireless World with Enhanced Speech-Processing Software | 123 | |
Objection Two: Security for WiMAX VoIP | 124 | |
Objection Three: CALEA and E911 | 125 | |
E911 | 125 | |
Architecture of WiMAX VoIP: Putting It All Together | 126 | |
WiMAX VoIP Phones | 127 | |
Conclusion | 128 | |
Chapter 9 | WiMAX IPTV | 131 |
WISP WiMAX Triple Play? | 132 | |
IPTV: Competing with Cable TV and Satellite TV | 132 | |
How It Works | 134 | |
Bandwidth and Compression Technologies | 136 | |
Other Video Revenue Streams | 136 | |
Video on Demand | 137 | |
Personal Video Recorder | 138 | |
Conclusion: A TV Station Called WiMAX | 138 | |
Chapter 10 | Regulatory Aspects of WiMAX | 139 |
Operate Licensed or Unlicensed? | 140 | |
Current Regulatory Environment | 142 | |
Power Limits | 142 | |
WiMAX 802.16 - Its Relationship to FCC Part 15, Section 247 | 143 | |
802.16 - FCC Part 15, Section 407 | 143 | |
Interference | 144 | |
Laws on Antennas and Towers | 150 | |
New Unlicensed Frequencies | 151 | |
Unlicensed Frequencies Summary | 152 | |
The FCC New Spectrum Policy | 152 | |
Four Problem Areas in Spectrum Management and Their Solutions | 153 | |
Recent Statements from the FCC on Broadband and Spectrum Policy | 159 | |
Conclusion | 161 | |
Chapter 11 | How to Dismantle a PSTN: The Business Case for WiMAX | 163 |
Overview | 164 | |
Immediate Markets | 164 | |
Secondary Markets | 166 | |
Demographics | 167 | |
Services | 168 | |
Frequency Band Alternatives | 170 | |
Capital Expense (CAPEX) Items | 172 | |
CPE Equipment | 174 | |
Operating Expense (OPEX) Items | 176 | |
The Business Case | 176 | |
Future Markets | 179 | |
Economics of Wireless in the Enterprise | 182 | |
You Can "Take It with You When You Go" | 182 | |
Economics of WiMAX in Public Networks | 184 | |
Economic Benefits of Ubiquitous Broadband | 186 | |
Conclusion | 195 | |
Chapter 12 | Projections: WiMAX Is a Disruptive Technology | 197 |
Disruptive Technology | 198 | |
How WiMAX Will Disrupt the Telephone Industry | 199 | |
Cheaper | 199 | |
Simpler | 200 | |
Smaller | 200 | |
More Convenient to Use | 200 | |
Deconstruction | 201 | |
Goetterdammerung or Creative Destruction in the Telecommunications Industry | 201 | |
Appendix A | Considerations in Building Wireless Networks | 205 |
Design | 206 | |
Network Topology | 206 | |
Link Type | 207 | |
Environment | 207 | |
Throughput, Range, and Bit Error Rate (BER) | 208 | |
Multipath Fading Tolerance | 209 | |
Link Budget | 209 | |
Frequency Band | 209 | |
Wireless Protocols Preceding WiMAX | 215 | |
802.11 Summary | 217 | |
Planning | 217 | |
Fresnel Zone | 218 | |
How to Calculate a Link Budget | 220 | |
Site Survey | 227 | |
How to Make a Frequency Plan | 228 | |
Frequency Allocation | 230 | |
Equipment Selection | 231 | |
How to Look at Specs | 231 | |
The WAN/MAN Connection | 232 | |
How to Put a BS Where There Is No Power | 244 | |
How to Overcome Line-of-Sight Limitations | 246 | |
Index | 247 |
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