An electrical apparatus designed to prevent the passage of electromagnetic waves, either containing them in or excluding them from its interior space. It is named for physicist Michael Faraday, who built the first one in 1836. Also known as a "screen room" or "FCC cage."
fast handoff
See fast roaming.
fast roaming
A generic term used in the WLAN industry to denote various proprietary mechanisms to decrease the amount of time taken for clients to roam from wireless cell to cell. Fast roaming is especially important for wireless voice services because even very minor delays or service interruptions, often overlooked in data applications, can have an adverse affect on voice traffic.
FCC
Federal Communications Commission. The U.S. regulatory body for telecommunications, including wireless LANs.
Federal Information Processing Standard (FIPS) 140-2
FIPS 140 are the current, highly secure, encryption standards required by the U.S. federal government for use within government agencies. FIPS 140 mandates the use of Advanced Encryption Standard, implemented in 802.11i (the newest wireless security standard) for use with government data.
FHSS
Frequency-Hopping Spread-Spectrum. One of two types of spread-spectrum radio technology used in WLAN transmissions. FHSS modulates the data by hopping from frequency to frequency in the same band in a predetermined manner.
