Appendix d - wireless network glossary – AirLive WN-151ARM User Manual
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AirLive WN-151ARM User’s Manual
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The wireless network glossary contains explanation or information about common terms used in wireless
networking products. Some of information in this glossary might be outdated, please use with caution.
802.11a
An IEEE specification for wireless networking that operates in the 5 GHz frequency range (5.15 GHz to 5.850
GHz) with a maximum of 54Mbps data transfer rate. The 5GHz frequency band is not as crowded as the
2.4GHz band. In addition, the 802.11a have 12 non-overlapping channels, comparing to 802.11b/g's 3
non-overlapping channels. This means the possibility to build larger non-interfering networks. However, the
802.11a deliver shorter distance at the same output power when comparing to 802.11g.
802.11b
International standard for wireless networking that operates in the 2.4GHz frequency band (2.4 GHz to 2.4835
GHz) and provides a throughput up to 11 Mbps.
802.11d
Also known as “Global Roaming”. 802.11d is a standard for use in countries where systems using other
standards in the 802.11 family are not allowed to operate.
802.11e
The IEEE QoS standard for prioritizing traffic of the VoIP and multimedia applications.
The WMM is based on a subset of the 802.11e.
802.11g
A standard provides a throughput up to 54Mbps using OFDM technology. It also operates in the 2.4GHz
frequency band as 802.11b. 802.11g devices are backward compatible with 802.11b devices.
802.11h
This IEEE standard define the TPC (transmission power control) and DFS (dynamic frequency selection)
required to operate WiFi devices in 5GHz for EU.
802.11i
The IEEE standard for wireless security, 802.11i standard includes TKIP, CCMP, and AES encryption to
improve wireless security. It is also know as WPA2.