TL-WA7210N
2.4GHz 150Mbps Outdoor Wireless Access Point User Guide
139
Appendix D: 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) 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.
DDNS
(
D
ynamic
D
omain
N
ame
S
ystem)
-
The capability of assigning a fixed host and domain
name to a dynamic Internet IP Address.
DHCP
(
D
ynamic
H
ost
C
onfiguration
P
rotocol)
-
A protocol that automatically configure the
TCP/IP parameters for the all the PC(s) that are connected to a DHCP server.
DMZ
(
D
e
m
ilitarized
Z
one)
-
A Demilitarized Zone allows one local host to be exposed to the
Internet for a special-purpose service such as Internet gaming or videoconferencing.
DNS
(
D
omain
N
ame
S
ystem)
–
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.
DoS
(
D
enial
o
f
S
ervice)
-
A hacker attack designed to prevent your computer or network from
operating or communicating.
DSL
(
D
igital
S
ubscriber
L
ine)
-
A technology that allows data to be sent or received over
existing traditional phone lines.
ISP
(
I
nternet
S
ervice
P
rovider)
-
A company that provides access to the Internet.
MTU
(
Maximum Transmission Unit
)
-
The size in bytes of the largest packet that can be
transmitted.
NAT
(
N
etwork
A
ddress
T
ranslation)
-
NAT technology translates IP addresses of a local area
network to a different IP address for the Internet.
PPPoE
(
P
oint to
P
oint
P
rotocol
o
ver
E
thernet)
-
PPPoE is a protocol for connecting remote
hosts to the Internet over an always-on connection by simulating a dial-up connection.
SSID -
A
S
ervice
S
et
Id
entification 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
(
W
ired
E
quivalent
P
rivacy)
-
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 -
is a trademark of the Wi-Fi Alliance, founded in 1999 as Wireless Internet Compatibility
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