Implementing 802.11, 802.16 and 802.20 wireless networks: planning, troubleshooting, and maintenance

Team DDU......Page 1
Contents......Page 6
Preface......Page 10
Introduction......Page 14
What\'s on the CD-ROM?......Page 20
1: High-Speed Wireless Data: System Types, Standards-Based and Proprietary Solutions......Page 24
Fixed Networks......Page 25
Nomadic Networks......Page 26
Standards-Based Solutions and Proprietary Solutions......Page 27
Overview of the IEEE 802.11 Standard......Page 28
Overview of the IEEE 802.16 Standard......Page 35
2?11 GHz Standards......Page 37
Overview of the IEEE 802.20 Standard......Page 38
Proprietary Solutions......Page 39
RF Energy......Page 48
Oscillator......Page 51
Power Amplifiers......Page 55
Antennas and Feedlines......Page 56
RF Reception......Page 62
Amplitude Modulation......Page 65
Frequency Modulation......Page 67
Complex Modulation......Page 68
Frequency Division Duplexing......Page 75
Multiple Access Techniques......Page 76
Spread-Spectrum Modulation......Page 79
OFDM......Page 83
Ultra Wideband......Page 85
3: Propagation, Path Loss, Fading and Link Budgets......Page 90
Path Loss and System Coverage......Page 100
Frequency Reuse......Page 106
Predictive Modeling Tools......Page 116
Spreadsheet Models......Page 117
Terrain-Based Models......Page 118
Effectively Using a Propagation Analysis Program......Page 119
Using a Predictive Model......Page 125
The Comprehensive Site Survey Process......Page 127
Survey Activity Outline......Page 131
Identification of Requirements......Page 133
Identification of Equipment Requirements......Page 134
The Physical Site Survey......Page 135
Determination of Antenna Locations......Page 136
RF Site Survey Tools......Page 138
The Site Survey Checklist......Page 140
The RF Survey......Page 141
Data Analysis......Page 144
System Design Overview......Page 152
Location and Real Estate Considerations......Page 153
System Selection Based Upon User Needs......Page 160
Identification of Equipment Requirements......Page 161
Identification of Equipment Locations......Page 164
Channel Allocation, Signal-to-Interference, and Reuse Planning......Page 172
Network Interconnect and Point-to-Point Radio Solutions......Page 176
The Five C\'s of System Planning......Page 180
Example One: Local Coffee House......Page 184
Example Two: Office LAN Deployment......Page 186
2.4 GHz RF Coverage Results......Page 190
5.6 GHz RF Coverage Results......Page 191
System Design Analysis......Page 192
NEC, Fire, and Safety Code Concerns......Page 195
Example Three: Community WISP......Page 197
Community: A Garden Style Apartment Complex......Page 198
RF Considerations......Page 199
Backhaul......Page 202
Weatherproofing......Page 204
Grounding and Lightning Protection......Page 205
Equipment Selection......Page 206
System Planning......Page 208
Spectrum Issues......Page 209
Design Considerations......Page 211
Summary......Page 212
Initial Modeling......Page 213
Preliminary Information......Page 214
Capacity Modeling......Page 215
Designing in the Real World......Page 216
Summary......Page 218
Network Systems Required......Page 222
Customer Authorization System......Page 223
Network Monitoring and Control......Page 224
Billing System......Page 225
Trouble Ticketing......Page 226
Customer Service Systems......Page 227
Design Considerations and Requirements......Page 229
8: Network Performance Testing and Troubleshooting......Page 234
Low RSSI and Noise Levels in a Single Area......Page 236
High Noise or Interference Levels......Page 237
Throughput Problems Unrelated to Signal or Noise......Page 239
Repeater Mode......Page 240
Hidden Node Problems......Page 241
Viruses and Trojans......Page 242
Troubleshooting Summary......Page 243
About the Author......Page 244
List of Acronyms......Page 246
Index......Page 250