ates than first-generation CDMA. WDM (Wavelength Division Multiplexing) The multiplexing of signals by transmitting them at different wavelengths through the same fiber. wearables Smart devices that can be networked and are small enough to be worn on the human body. (Wired Equivalent Privacy) An encryption standard used to secure wireless net- works. WEP has some serious weaknesses and has therefore been superseded by other standards, such as WPA and WPA2. Glossary WFQ (Weighted Fair Queuing) WFQ (Weighted Fair Queuing) A packet-scheduling technique that allows guaranteed bandwidth services and lets several sessions share the same link. WiBro (Wireless Broadband) A Korean WMAN standard for wireless broadband Internet access that operates in licensed bands. wideband Refers to the range of speeds between narrowband and broadband, typically rang- ing between 64Kbps up to 45Mbps. wideband channel A channel that is wider in bandwidth than a voice-grade channel. Wi-Fi (Wireless Fidelity) A WLAN technology that allows users to plug a single high-speed Internet connection such as a cable modem into an inexpensive WAP and share it with scores of people in a building, park, or small neighborhood. Wi-Fi is used to create hotspots in locations such as hotels, airports, shopping centers, restaurants/cafes, and educational environments. WiMax (Worldwide Interoperability for Microwave Access) The global IEEE 802.16 standard, also known as the IEEE WirelessMAN air interface standard, which was designed to provide wireless last-mile broadband access in MANs. WiMax represents an evolution to a stan- dards-based, interoperable, carrier-class solution. WiMedia A UWB common radio platform that enables high speeds (480Mbps and beyond), low power consumption, and multimedia data transfers in a WPAN. WiMedia is optimized for several key market segments: PC, consumer electronic, mobile, and automotive applications. wireless A generic term for mobile communications services such as cellular, radiopaging, or PCS that do not use wireline ne