V
voice over Internet protocol (VoIP),
basic properties, 129–131
W
certification process, 181–183 certification working group, plugfest
testing
development, 183–189 interoperability and certification testing,
179–183
protocol analyzer development, 183 standardization
and certification
development, 206–207
testing systems, 176–177
WiMAX system, standard protocol structure, 230–231
Wireless Broadband (WiBro)
standard, 14 wireless local area networks (WLAN), IEEE
802.11 standard, 4–5 wireless metropolitan area networks
(WMAN), IEEE 802.16 standard, 4–6
wireless regional area network (WRAN), IEEE 802.22 standard14
wake mode, mobility support, power management, 105–109
Walfish-Ikegami model, propagation environments, 82–83
wave
features, WiMAX Forum certification, 182
WiBro system, characteristics, 79
WiMAX Forum
X
X.509 certificate
basic properties of, 217–218
WiMAX
security system, 200–203, 218–219
Z
ZigBee standard, evolution of, 4–6