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A and B block frequency spectrum, 50
access control, 3–5, 3, 64–65, 85
access points (AP), 15, 37, 106, 200, 234–235
ad hoc mode networks and, 56–57
antennas, 238–243
antennas and, 44
intelligent (IAP), 57
placement of, 251–253
power over Ethernet (PoE) in, 251–253, 252
power supply for, 251–253, 252
rogue APs, 265
rogue networks and station redirection in, 80
security and, 72, 75
service set ID (SSID) and, 63
topologies and, 201–203, 201
ACELP codec, 182
acknowledgment (ACK), 25, 146
acoustic echo cancellation, 187
ad hoc mode, 34–35, 35, 54–58, 56, 202
adaptive jitter buffer, voice over IP (VoIP) and, 186
address resolution protocol (ARP), traffic redirection in, 77–78
Advanced encryption standard (AES), 86
Agere, 235
aggregates, DiffServ, 131
Airopeek, 69
AirPath, 284
airport hot spots, 280–281, 281
Airsnort, 69, 70
amateur radio interference, 315
AmberWaves WISP, voice over IP (VoIP) and, 196
American Airlines, 280–281
amplifiers, 45–46, 236–237
amplitude modulation (AM), 18
antenna temperature, 319–321, 320
antennas, 42, 43–45, 237–243
access point (AP) and, 44, 238–243
antenna temperature and, 319–321, 320
beam width of, 112, 244–245
client adapter card side, 243–244
collinear, 239, 239
connectors for, nonstandard, 245–246
decibels over isotropic (dBi), 237
dipole, 239
directional antennas, 43–45, 441, 239–240, 241
diversity, 248–251
feedline or pigtail for, 243–244
gain in, 217, 218, 244
interference and, 112, 246–248
intersymbol interference (ISI) in, 247–248, 248
lightning protection, grounding, bonding, 246
multipath and, 246–247, 247, 249–251, 249
multiple in, multiple out (MIMO), 112
omnidirectional antennas, 43–45, 44, 238, 238
parabolic dish, 242–243, 242
patch and panel type, 239, 240, 241
power management in, 217, 237–238
RAKE receivers and, 249–250, 250
regulatory issues on, 316–317
RF propagation in, 246–248
specifications for, 244–245
steerable, 112, 243
towers for, regulatory issues, 316–317
weatherproofing, 251
Yagi, 240–241, 242, 243–244
Antheil, George, 20–21
application servers, softswitches and, 171
APSniff, 69
arbitration interframe space (AIFS), 150
architecture of 802.11, 34–39
as-built documentation, 262–263
Association of Public Safety Communications (APCO), 315
association/disassociation/reassociation, media access control (MAC) and, 29–30
assured forwarding (AF), 131–133
asymmetrical DSL (ADSL), 24
asynchronous transport mode (ATM), 5, 53
AT&T, 6, 69
attacks, classes of, 67
attenuation, 220–224
authentication, 63–65, 72–75, 73, 86
802.11x and, 87–94, 88
challenge handshake authentication protocol (CHAP) in, 92
extensible authentication protocol (EAP) in, 82, 87–94, 235, 256, 257
firewalls and DMZs in, 81–83, 81, 82
Kerberos in, 99–102, 100
LEAP and, 92
media access control (MAC) and, 28
remote authentication dial in user service (RADIUS) in, 82, 87, 90, 91–92
wired equivalent privacy (WEP) and, 63–65
authentication servers (AS), 86
authentication, authorization, accounting (AAA) systems, 90
authenticators, 802.11x and, 90–94
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