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eavesdropping, 69-72
echo, 122, 125-126, 187, 248
economic advantage of 802.11, 9-10, 267-305, 333-334
broadband public networks, 291-305
computer sales and, 295-296
consumer benefits and, 296-300
consumer surplus concept in, 292-293
customer service and, 273-274
efficiency of production and, 274-275
hotspots, 278-282, 280
layering, private networks made public using, 286-288, 287
moves, adds, changes, cost of, 270
net present value (NPV) and, 9-10, 277
portability of network components and, 268-270
producer benefits and, 293-296
producer surplus concept in, 293
productivity and, 270-273, 272
public access networks and, 278-291, 280
reciprocal compensation concept in, 285-286
return on investment (ROI) and, 9-10, 277, 333
telephone service and broadband in, 300-305
time savings using, 274
turnkey operators and, 282, 284, 285-286
voice over IP (VoIP) and, 273-277, 277, 301-305, 305
wireless Internet service provider (WISP) and, 288-291, 290
WLANs vs. local area networks (LAN), 268-270, 269
effective isotropic radiated power (EIRP), 205, 309
effective radiated power (ERP), 46, 205
efficiency of production and wireless, 274-275
electronic news gathering (ENG), 314-315
electronic warfare, 117-118
emergency services (E911), VoIP and, 172, 190-192
encapsulation, 89, 98
encoding process, voice over IP (VoIP) and, 180-184
encryption, 69, 86
hex vs. ASCII keys in, 71
IPSec in, 97
Kerberos in, 99-102, 100
tunneling in, 94-96
wired equivalent privacy (WEP) and, 63-65
endpoints, voice over IP (VoIP) and, 163
engineering and range of signals, 42
enhanced DCF (EDCF), quality of service (QoS) and, 142, 151-152, 151
Enterasys, 235
enterprise networks (EN), 165, 256
entertainment, 297-300
equipment selection, 231-235
Ethernet, 37, 128, 201, 293
exclusive use model for frequency spectrum, 323-324
expedited forwarding (EF), 131-133
extended interframe space (EIFS), 146-147
extended service set (ESS), 28, 34, 35, 36, 201-203, 201
extensible authentication protocol (EAP), 82, 87-94, 235, 256, 257
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