Appendix D: Glossary - TP-Link TL-WA850RE User Manual

TL-WA850RE

Appendix D: Glossary

802.11b - The 802.11b standard specifies a wireless networking at 11 Mbps using

direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio
spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to
as Wi-Fi networks.
802.11g - specification for wireless networking at 54 Mbps using direct-sequence

spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices,
and WEP encryption for security.
802.11n - 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input

multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for increased
data throughput via spatial multiplexing and increased range by exploiting the spatial diversity,
perhaps through coding schemes like Alamouti coding. The Enhanced Wireless Consortium
(EWC) was formed to help accelerate the IEEE 802.11n development process and promote a
technology specification for interoperability of next-generation wireless local area networking
(WLAN) products.
Access Point (Range Extender) - A wireless LAN transceiver or "base station" that can

connect a wired LAN to one or many wireless devices. Access points can also bridge to each
other.
DNS (Domain Name System) – An Internet Service that translates the names of websites into
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IP addresses.
Domain Name - A descriptive name for an address or group of addresses on the Internet.

DoS (Denial of Service) - A hacker attack designed to prevent your computer or network from

operating or communicating.
DSL (Digital Subscriber Line) - A technology that allows data to be sent or received over

existing traditional phone lines.
ISP (Internet Service Provider) - A company that provides access to the Internet.

MTU (Maximum Transmission Unit) - The size in bytes of the largest packet that can be

transmitted.
SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key

identifying a wireless local area network. For the wireless devices in a network to
communicate with each other, all devices must be configured with the same SSID. This is
typically the configuration parameter for a wireless PC card. It corresponds to the ESSID in
the wireless Access Point and to the wireless network name.
WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or 128-bit or

152-bit shared key algorithm, as described in the IEEE 802.11 standard.
Wi-Fi –A trademark of the Wi-Fi Alliance and the brand name for products using the IEEE

802.11 family of standards.
WLAN (Wireless Local Area Network) - A group of computers and associated devices

communicate with each other wirelessly, which network serving users are limited in a local
area.
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