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WiMAX Handbook
Building 802.16 Wireless Networks
by Frank Ohrtman

Get a thorough introduction to WiMAX - the revolutionary new 802.16 IEEE standard for point-to-point and point-to-multipoint wireless broadband access.

WiMAX Handbook annotates the 802.16 specification and explains how to design and build a robust, reliable, and secure WiMAX network that takes full advantage of the wide range, increased throughput, and "last mile" solutions offered by WiMAX.


  • Telecommunications Networks - The Need for an Alternative Form of Access
  • Switching
  • Transport
  • Access
  • Replacing the PSTN One Component at a Time
  • Objections to Wireless Networks
  • QoS
  • Security
  • Interference Mitigation
  • Economic Advantage of WiMAX
  • Regulatory Aspects of Wireless Networks
  • Improved Quality of Life with Wireless Networks
  • Disruptive Technology
  • Disruption for Telephone Companies
  • Disruption for Cable TV and Satellite TV Companies
  • Disruption for Cell Phone Companies
  • Disruption for the Backhaul Industry
  • Conclusion

1. WiMAX: The Physical Layer (PHY)

  • Introduction
  • The Function of the PHY
  • OFDM: The "Big So What?!" of WiMAX
  • TDD and FDD
  • Adaptive Antenna System (AAS)
  • WiMAX Variants
  • OFDM Variants 2-11 GHz
  • Single Carrier (SC) Variants
  • Conclusion

2. The Medium Access Control (MAC) Layer

  • The MAC as the "Smarts" for the Physical Layer
  • The MAC and WiMAX Architecture
  • Service Classes and QoS
  • Service-Specific Convergence Sublayers
  • Common Part Sublayer
  • Packing and Fragmentation
  • PDU Creation and Automatic Repeat Request (ARQ)
  • Transmission Convergence (TC) Layer

3. How WiMAX Works

  • Channel Acquisition
  • Initial Ranging and Negotiation of SS Capabilities
  • SS Authentication and Registration
  • IP Connectivity
  • Connection Setup
  • Radio Link Control (RLC)
  • The UL
  • Service Flow
  • Conclusion

4. Quality of Service (QoS) on WiMAX

  • Overview
  • The Challenge
  • Legacy QoS Mechanisms
  • Forward Error Correction (FEC)
  • Bandwidth Is the Answer - What Was the Question?
  • QPSK Versus QAM
  • Multiplexing in OFDM
  • What OFDM Means to WiMAX
  • QoS: Error Correction and Interleaving
  • QoS Measures Specific to the WiMAX Specification
  • Theory of Operation
  • Service Flows
  • The Object Model
  • Service Classes
  • Authorization
  • Types of Service Flows
  • Service Flow Management
  • Conclusion

5. Dealing with Interference with WiMAX

  • Interference - Some Assumptions
  • Defining Interference or "Think Receiver"
  • Forms of Interference
  • Countering Interference
  • Changing Channels Within the ISM or U-NII Bands
  • Dealing with Distance
  • Internal (CoCH) Sources of Interference
  • OFDM in Overcoming Interference
  • Handling ISI
  • Mitigating Interference with Antenna Technology
  • Multiple Antennas: AAS
  • Adaptive Antenna (AA) Techniques
  • Dynamic Frequency Selection (DFS)
  • If You Want Interference, Call the Black Ravens

6. Security and 802.16 WiMAX

  • Security in WiMAX Networks
  • The Security Sublayer
  • The PKM Protocol
  • TEK Exchange Overview
  • Cryptographic Methods
  • Conclusion 104


  • PSTN Architecture
  • Voice Over WiMAX-The Challenge
  • VoIP
  • Origins of VoIP
  • How Does VoIP Work?
  • VoIP Signaling Protocols
  • Switching
  • Softswitch (aka Gatekeeper, Media Gateway Controller)
  • Other Softswitch Components
  • VoIP and Softswitch Pave the Way for Voice Over WiMAX
  • Objections to VoIP Over WiMAX
  • Objection One: Voice Quality of WiMAX VoIP
  • Solution: Voice Codecs Designed for VoIP, Especially VoIP Over WiMAX
  • Modifying Voice Codecs to Improve Voice Quality
  • The QoS Solution: Fix Circuit-Switched Voice Codecs in a Packet Switched, Wireless World with Enhanced Speech-Processing Software
  • Objection Two: Security for WiMAX VoIP
  • Objection Three: CALEA and E911
  • E911
  • Architecture of WiMAX VoIP: Putting It All Together
  • WiMAX VoIP Phones
  • Conclusion


  • WISP WiMAX Triple Play?
  • IPTV: Competing with Cable TV and Satellite TV
  • How It Works
  • Bandwidth and Compression Technologies
  • Other Video Revenue Streams
  • Video on Demand
  • Personal Video Recorder
  • Conclusion: A TV Station Called WiMAX
9. Regulatory Aspects of WiMAX
  • Operate Licensed or Unlicensed?
  • Current Regulatory Environment
  • Power Limits
  • WiMAX 802.16 - Its Relationship to FCC Part 15, Section 247
  • 802.16 - FCC Part 15, Section 407
  • Interference
  • Laws on Antennas and Towers
  • New Unlicensed Frequencies
  • Unlicensed Frequencies Summary
  • The FCC New Spectrum Policy
  • Four Problem Areas in Spectrum Management and Their Solutions
  • Recent Statements from the FCC on Broadband and Spectrum Policy
  • Conclusion

10. How to Dismantle a PSTN: The Business Case for WiMAX

  • Overview
  • Immediate Markets
  • Secondary Markets
  • Demographics
  • Services
  • Frequency Band Alternatives
  • Capital Expense (CAPEX) Items
  • CPE Equipment
  • Operating Expense (OPEX) Items
  • The Business Case
  • Future Markets
  • Economics of Wireless in the Enterprise
  • You Can "Take It with You When You Go"
  • Economics of WiMAX in Public Networks
  • Economic Benefits of Ubiquitous Broadband
  • Conclusion

11. Projections: WiMAX Is a Disruptive Technology

  • Disruptive Technology
  • How WiMAX Will Disrupt the Telephone Industry
  • Cheaper
  • Simpler
  • Smaller
  • More Convenient to Use
  • Deconstruction
  • Goetterdammerung or Creative Destruction in the Telecommunications Industry

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WiMAX Handbook
Building 802.16 Wireless Networks
by Frank Ohrtman

261 pages $64.00 + shipping
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