RADIUS Remote Authentication Dial-In User Service (RADIUS) is an authentication
and accounting system that verifies users credentials and grants access to
requested resources.
RF Radio Frequency. The international unit for measuring frequency is Hertz
(Hz), which is equivalent to the older unit of cycles per second. One Mega-
Hertz (MHz) is one million Hertz. One Giga-Hertz (GHz) is one billion Hertz.
For reference: the standard US electrical power frequency is 60 Hz, the AM
broadcast radio frequency band is 0.55 -1.6 MHz, the FM broadcast radio
frequency band is 88-108 MHz, and microwave ovens typically operate at
2.45 GHz.
Roaming Movement of a wireless node between two micro cells. Roaming usually
occurs in infrastructure networks built around multiple access points.
RTS threshold The number of frames in the data packet at or above which an RTS/CTS
(request to send/clear to send) handshake is turned on before the packet
is sent. The default value is 2347.
Shared Key An encryption key known only to the receiver and sender of data.
SIM Subscriber Identity Module card is used to validate credentials with the
network. A SIM card is a special smart card that is used by GSM-based
digital cellular networks.
Silent Mode Silent Mode Access Points or Wireless Routers have been configured to not
broadcast the SSID for the wireless network. This makes it necessary to
know the SSID in order to configure the wireless profile to connect to the
access point or wireless router.
Single Sign On Single Sign On feature set allows the 802.1x credentials to match your
Windows log on user name and password credentials for wireless network
connections.
SSID Service Set Identifier. A value that controls access to a wireless network.
The SSID for your wireless network card must match the SSID for any
access point that you want to connect with. If the value does not match,
you are not granted access to the network. Each SSID may be up to 32
characters long and is case-sensitive.
TKIP Temporal Key Integrity protocol improves data encryption. Wi-Fi Protected
Access utilizes its TKIP. TKIP provides important data encryption
enhancements including a re-keying method. TKIP is part of the IEEE
802.11i encryption standard for wireless LANs. TKIP is the next generation
of WEP, the Wired Equivalency Protocol, which is used to secure 802.11
wireless LANs. TKIP provides per-packet key mixing, a message integrity
check and a re-keying mechanism, thus fixing the flaws of WEP.