W-X

watcher

A watcher is an entity that subscribes to, or views, presence information.

Wideband CDMA (W-CDMA)

W-CDMA is a spread spectrum wireless technology used in some 3G cellular access.

wireless access point (WAP)

A wireless access point is an infrastructure node in a wireless network.

Wireless Application Protocol (WAP)

WAP is a standard for providing lightweight devices with information services, like web pages and e-mail.

Wireless Broadband (WiBro)

WiBro is a wireless broadband technology similar to WiMAX.

Wireless Fidelity (WiFi)

WiFi is a common name for 802.11 wireless networks.

wireless network controller (WNC)

In a wireless network, a WNC is an operational node that manages aspects of the wireless network, including access control, radio resource management, routing, and location.

World Geodetic System 1984 (WGS84)

A coordinate reference system, or model, for the surface of the earth that is used in GPS.

Worldwide Interoperability for Microwave Access (WiMAX)

WiMAX is a brand name and a certification mark for IEEE 802.16-compliant products.

X.509

X.509 is an ITU-T standard format for the publication of digital credentials, usually a signed X.500 directory fragment that contains a public key.