WiMax Operator's Manual

198 ■INDEX
central offices (continued)
requirements for hotspot services, 145
role of, 131
security devices and appliances in, 146
selecting locations for, 68
and specialized content distribution
platforms, 145
telephone switches in, 138–140
traffic management and distribution in,
131–135
and VPNs, 137
channels, assigning between cells, 104–105
circuit fiber connections, features of, 75
circuit protocols, relationship to MAC layer, 3
circuit voice versus IP voice, 51–52
circuit-based access technologies
overview of, 14–15
relationship to higher microwave, 58–59
class 4 and class 5 switches, features of,
149–150
Clearwire, leasing of ITFS spectrum by, 46
CLECs (competitive local exchange carriers)
relationship to PSTN, 150
role in cable industry, 20
CMIP (Common Management Information
Protocol) versus CMIS (Common
Management Information Service),
184
coax cable, speed of, 19
coaxial copper, potential of, 18
codecs, relationship to compression and
QoS, 169
commercial broadcasts, frequencies of, 35
common carrier, significance of, 63
commons, spectrum as, 42–43
compression, relationship to QoS, 169
conferencing
802.16 support for, 27
equipment, requirements for, 142
use of, 54
connectivity management. See OSS
(operations support systems)
content producer, relationship to
entertainment services, 57
converged services packet model, overview
of, 154–155
copper-pair phone lines, terminating at
DLCs, 148–149
CORBA (Common Object Request Broker
Architecture), using in OSS software
integration, 183–184
core routers
description of, 133
role in Internet, 151
costs. See also operating and capital budgets
of base stations for point-to-multipoint
networks, 79
of cable installations, 126
of edge routers, 67
for establishing central offices, 70
of frame relay, 16
of macrocells, 108
of mesh networks, 83–84
of packet fiber, 75
of radios for millimeter wave regions, 77
of residential installations, 25
of T1, 15
of truck rolls, 87
of using towers for antennas, 72
of wireless broadband, 24
CRM (customer relations management),
providing with OSS, 182
customer relations, using OSS for, 180–182
cyberwarfare. See also security
attacks and counterattacks, 190–191
and CALEA, 193–194
and cybersecurity technology, 191–192
DoS (denial-of-service) attacks, 192–193
overview of, 189–190