beautypg.com

Appendix e: glossary – PLANET WNAP-1110 User Manual

Page 110

background image

User’s Manual of WNAP-1110

-110-

Appendix E: Glossary

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) [3] 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.

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.

DHCP (Dynamic Host Configuration Protocol) - A protocol that automatically configure the TCP/IP

parameters for the all the PC(s) that are connected to a DHCP server.

DNS (Domain Name System) - An Internet Service that translates the names of websites into IP

addresses.

Domain Name - A descriptive name for an address or group of addresses on the Internet.

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 trade name for the 802.11b wireless networking standard, given by the Wireless Ethernet

Compatibility Alliance (WECA, see http://www.wi-fi.net), an industry standards group promoting

interoperability among 802.11b devices.

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.