TP-Link TD-W8950ND User Guide - Page 91

Appendix D: Glossary

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TD-W8950ND 150Mbps Wireless Lite N ADSL2+ Modem Router User Guide Appendix D: Glossary ¾ 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. ¾ 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. ¾ 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. ¾ Access Point - A device that allows wireless-equipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network. ¾ Ad-hoc Network - An ad-hoc network is a group of computers, each with a wireless adapter, connected as an independent IEEE 802.11 wireless LAN. Ad-hoc wireless computers operate on a peer-to-peer basis, communicating directly with each other without the use of an access point. Ad-hoc mode is also referred to as an Independent Basic Service Set (IBSS) or as peer-to-peer mode, and is useful at a departmental scale or SOHO operation. ¾ AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block data encryption. ¾ ACS (Auto-Configuration Server) - Through ACS (Auto-Configuration Server) you can perform auto-configuration, provision, collection, and diagnostics to the device. ¾ ATM (Asynchronous Transfer Mode) - ATM is a cell based transfer mode that requires variable length user information to be segmented and reassembled to/from short, fixed length cells. It uses two different methods for carrying connectionless network interconnect traffic, routed and bridged Protocol Data Units (PDUs), over an ATM network. ¾ Bridging - A device that connects different networks. ¾ Browser - An application program that provides a way to look at and interact with all the information on the World Wide Web. ¾ DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or e-mail server with a fixed domain name (e.g., www.xyz.com) and a dynamic IP address. ¾ Default Gateway - A device that forwards Internet traffic from your local area network. ¾ DHCP - A networking protocol that allows administrators to assign temporary IP addresses to network computers by "leasing" an IP address to a user for a limited amount of time, instead of assigning permanent IP addresses. ¾ DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from the Internet. 84

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TD-W8950ND
150Mbps Wireless Lite N ADSL2+ Modem Router User Guide
Appendix D: Glossary
¾
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.
¾
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.
¾
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.
¾
Access Point - A device that allows wireless-equipped computers and other devices to
communicate with a wired network. Also used to expand the range of a wireless network.
¾
Ad-hoc Network - An ad-hoc network is a group of computers, each with a wireless adapter,
connected as an independent IEEE 802.11 wireless LAN. Ad-hoc wireless computers operate
on a peer-to-peer basis, communicating directly with each other without the use of an access
point. Ad-hoc mode is also referred to as an Independent Basic Service Set (IBSS) or as
peer-to-peer mode, and is useful at a departmental scale or SOHO operation.
¾
AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block
data encryption.
¾
ACS (Auto-Configuration Server) - Through ACS (Auto-Configuration Server) you can
perform auto-configuration, provision, collection, and diagnostics to the device.
¾
ATM (Asynchronous Transfer Mode) - ATM is a cell based transfer mode that requires
variable length user information to be segmented and reassembled to/from short, fixed length
cells. It uses two different methods for carrying connectionless network interconnect traffic,
routed and bridged Protocol Data Units (PDUs), over an ATM network.
¾
Bridging - A device that connects different networks.
¾
Browser - An application program that provides a way to look at and interact with all the
information on the World Wide Web.
¾
DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or
e-mail server with a fixed domain name (e.g., www.xyz.com) and a dynamic IP address.
¾
Default Gateway - A device that forwards Internet traffic from your local area network.
¾
DHCP - A networking protocol that allows administrators to assign temporary IP addresses to
network computers by “leasing” an IP address to a user for a limited amount of time, instead
of assigning permanent IP addresses.
¾
DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it
to be “seen” from the Internet.
84