Specifications
Abbreviations and Glossary 33
Greenfield
mode
A pure high throughput (HT) mode where packets are transmitted without a lega-
cy-compatible part.
IEEE Institute of Electrical and Electronics Engineers
IP Internet Protocol:
global standard that defines how to send data from one device to another over the
wired and wireless media.
MAC Medium Access Control
MIMO Multiple Input Multiple Output. Handles the use of multiple radio chains.
Multipath The receiver not only contains a direct line-of-sight radio wave, but also a larger
number of reflected radio waves.
OTA Over-the-air
PEAP MSC-
HAP
Protected EAP Microsoft Challenge Handshake Authentication Protocol.
PoE Power over Ethernet
QoS Quality of Service:
Defines to what extent transmission rates, error rates etc. are guaranteed in ad-
vance.
RF Radio Frequency.
RFID Radio Frequency Identification.
RSSI Received signal strength indication.
RTP Real-time Transport Protocol
SGI Short Guard Interval, a tighter intersymbol time gap in a WiFi transmission that
reduces the idle overhead and may improve throughput with around 10%.
SISO Single-Input and Single-Output, the use of only one antenna both in the AP and
STA.
SNR Signal-to-noise-ratio.
SSID Service Set IDentifier. The name assigned to a wireless Wi-Fi network.
STA Station:
a mobile device in an IEEE802.11 WLAN system.
TCP Transport Control Protocol
TLS Transport Layer Security
TOS Type of Service
TSpec Traffic Specification.
UDP User Datagram Protocol.
UP User Priority.
VLAN Virtual Local Area Network.
VoWiFi Voice over Wireless Fidelity:
is a wireless version of VoIP and refers to IEEE 802.11a, 802.11b or 802.11g net-
work.
WEP Wired Equivalent Privacy
Wi-Di Wireless Display, an Intel technology to transmit a laptop's display to a TV-screen
or Projector using WiFi.
Wi-Fi Brand of Wi-Fi Alliance, which certifies interoperability of products and services
based on IEEE 802.11 technology.
Wi-Fi Direct A WiFi standard that allows devices to talk with each other without the need of an
access point. Formerly known as Wi-Fi peer-to-peer. Implementations use a soft
AP software in the device and the ad-hoc protocol for connection.
PDM Portable Device Manager:
Used for management of portables, editing of parameters and updating the por-
tables with new software.