17 GLOSSARY |
|
TERM | DEFINITION |
flow | A data path moving in one direction. |
FEC | Forward error correction is a technique to correct transmission |
| errors without requiring the transmitter to resend any data. |
FMDA | Frequency Division Multiple Access is a method to allow multiple |
| users to share a specific radio spectrum. Each active user is |
| assigned an individual RF channel (or carrier), with the carrier |
| frequency of each channel offset from its adjacent channels by |
| an amount equal to the channel spacing, which allows the |
| required bandwidth per channel. |
frame | A unit of data transmitted between network nodes that contain |
| addressing and protocol control data. Some control frames |
| contain no data |
frequency | Number of times an electromagnetic signal repeats an identical |
| cycle in a unit of time, usually one second, measured in Hz, kHz, |
| MHz, or GHz. |
FTP | File Transfer Protocol is a standard Internet protocol for |
| exchanging files between computers. FTP is commonly used to |
| download programs and other files to a computer from web |
| pages on Internet servers |
The ability to simultaneously transmit and receive data. See also | |
|
G
TERM | DEFINITION |
gain | The extent to which a signal is boosted. A |
| increases the wireless signal level to increase the distance the |
| signal can travel and remain usable. |
gateway | A device that enables communication between networks using |
| different protocols. See also router. The SVG2500 enables up to |
| 245 computers supporting IEEE 802.11b, Ethernet, or USB to |
| share a single broadband Internet connection. |
gateway IP | The address of the default gateway router on the Internet. Also |
address | known as the “giaddr.” |
GHz | Gigahertz — one billion cycles per second |
GUI | graphical user interface |
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