WiMax Operator's Manual

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■CONTENTS ix Performing Site Surveys and Determining Link Budgets . . . . . . . . . . . . . 86 Determining Line of Sight and Computing Fresnel Zones . . . . . . . . 88 RF Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Analyzing the Data Stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Establishing the Link Budget . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Examining the Equipment Selection Process . . . . . . . . . . . . . . . . . . . . . . . 92 Generalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Service-Related Specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Integrating Wireless with Wireline Infrastructure . . . . . . . . . . . . . . . . . . . . 94 Assembling the Management and Technical Teams . . . . . . . . . . . . . . . . . 95 Estimating Operating and Capital Budgets . . . . . . . . . . . . . . . . . . . . . . . . . 96 Examining Return on Investment for Wireless Broadband Networks. . . . 99 Putting Strategic Planning in Perspective . . . . . . . . . . . . . . . . . . . . . . . . . 100 ■CHAPTER 5 Strategies for Successful Deployment of Physical Infrastructures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Selecting an Appropriate Network Topology. . . . . . . . . . . . . . . . . . . . . . . 101 Deploying Minority Architectures . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Deeper into Point-to-Multipoint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Principles of Frequency Reuse and the Technologies for Achieving It . . . 108 Use of Repeaters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Sectorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Polarization Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Cell Splitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Line of Sight and Non–Line of Sight . . . . . . . . . . . . . . . . . . . . . . . . . 112 Adaptive Modulation and Cell Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Frequency-Agile Radios and Network Mapping . . . . . . . . . . . . . . . . . . . . 122 The Installation Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Frequency Converters, RF Amplifiers, Integrated Radio/Antennas, and Radio Modems . . . . . . . . . . . . . . . . . . . . . 123 Signal Distribution Within the Subscriber Premises . . . . . . . . . . . . 124 Infrastructure for a Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 ■CHAPTER 6 Beyond Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 The Place of the Central Office in the Business Case . . . . . . . . . . . . . . . 131 The Role of the Central Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Application-Specific Equipment for the Central Office . . . . . . . . . . 141 OSS and Network Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Security Devices and Appliances . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
x ■CONTENTS Beyond the Central Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Broadband Wireless Networks in the Larger Context: Connecting to Other Service Providers . . . . . . . . . . . . . . . . . . . . 148 The Central Office As War Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 ■CHAPTER 7 Service Deployments over Public Wireless MANs . . . . . . . 153 Introducing the Pure Packet Services Model . . . . . . . . . . . . . . . . . . . . . . 153 The Packet Model and Converged Services . . . . . . . . . . . . . . . . . . 154 Introducing Basic Access and Best-Effort Delivery . . . . . . . . . . . . . . . . . 155 Moving Beyond Basic Access: VPNs and LAN Extension. . . . . . . . . . . . . 157 Types of VPN and the Role of Network Operator in Administering Them . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Applications Requiring Quality of Service . . . . . . . . . . . . . . . . . . . . . . . . . 162 Marketing QoS Through Service-Level Agreements. . . . . . . . . . . . 164 Achieving QoS in Broadband Wireless Packet Networks . . . . . . . . 165 802.16 Provisions for QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Major Networking Standards for Supporting IP QoS. . . . . . . . . . . . 166 Other Methods for Supporting QoS. . . . . . . . . . . . . . . . . . . . . . . . . . 168 Where QoS Matters Most. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Enabling Storage Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Getting a Services Perspective. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 ■CHAPTER 8 Network Management and OSS . . . . . . . . . . . . . . . . . . . . . . . . . . 177 OSS: A Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 OSS in Perspective. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 The Anatomy of OSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 OSS for the Network Infrastructure . . . . . . . . . . . . . . . . . . . . . . . . . 179 OSS for Customer Relations and Transactions . . . . . . . . . . . . . . . . 180 OSS Software Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 Protocols for Software Integration . . . . . . . . . . . . . . . . . . . . . . . . . . 183 OSS Application Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Summation: The Well-Managed Network . . . . . . . . . . . . . . . . . . . . . . . . . 185 ■CHAPTER 9 Network Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Security Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Secure Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
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Page 4: This book is dedicated to my wife.
Page 8 and 9: Contents About the Author . . . . .
Page 12: ■CONTENTS xi Cyberwarfare . . . .
Page 16: About the Technical Reviewer ■ROB
Page 20 and 21: Introduction Broadband wireless has
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CHAPTER 6 ■ ■ ■ Beyond Access
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CHAPTER 6 ■ BEYOND ACCESS 133 Rou
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CHAPTER 6 ■ BEYOND ACCESS 135 (Qo
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CHAPTER 6 ■ BEYOND ACCESS 137 The
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CHAPTER 6 ■ BEYOND ACCESS 139 ins
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Figure 6-4. Wireless public network
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CHAPTER 6 ■ BEYOND ACCESS 143 sto
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Specialized Content Distribution Pl
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Beyond the Central Office CHAPTER 6
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CHAPTER 6 ■ BEYOND ACCESS 149 out
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CHAPTER 6 ■ BEYOND ACCESS 151 som
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CHAPTER 7 ■ ■ ■ Service Deplo
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CHAPTER 7 ■ SERVICE DEPLOYMENTS O
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178 CHAPTER 8 ■ NETWORK MANAGEMEN
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CHAPTER 9 ■ ■ ■ Network Secur
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CHAPTER 9 ■ NETWORK SECURITY 189
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Index ■Numbers 2.4GHz to 928MHz b
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asic access and best-effort deliver
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■D dark fiber, features of, 75-76
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harmonics, impact on AC power, 188
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challenges to, 85-86 and NLOS, 121
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PONs (passive optical networks), fe
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signal diversity, providing with ad
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■V VDSL and entertainment service
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