| Term |
Description |
| 3DES |
| 3DES (Triple DES) is a popular private key encryption method, based on DES, an ANSI Data Encryption Standard designed by IBM in the 1970s. Triple DES, or simply 3DES is a more secure version of the DES standard that encodes text three times, as opposed to just one. Exporting DES out of the U.S. or Canada is prohibited for those who don't meet the requirements of the Bureau of Export Administration (BXA). |
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| 802.11 |
802.11 is a family of specifications for WLANs (wireless local area networks) developed by the IEEE. The most widely used current specifications are 802.11b, 802.11g, and 802.11a, in that order. All use the Ethernet protocol and CSMA/CA (carrier sense multiple access with collision avoidance) for path sharing.
802.11 is also an IEEE legacy standard, a WLAN providing 1 or 2 Mbps transmission in the 2.4 GHz band using either FHSS or DSSS (frequency hopping or direct sequence spread spectrum) modulaion. |
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| 802.11a |
| 802.11a is a 802.11 WLAN (wireless LAN) extension that provides up to 54 Mbps in the 5GHz band. 802.11a uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS. |
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| 802.11b |
| 802.11b (also referred to as Wi-Fi) is a 802.11 WLAN (wireless LAN) extension that allows up to 11 Mbps transmission, with a fallback to 5.5, 2 and 1 Mbps. Wi-Fi works in the 2.4 GHz band, uses DSSS, and is comparable to Ethernet in functionality by allowing for (somewhat) high-speed, encrypted communication. |
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| 802.11e |
| 802.11e is a standard that defines QoS (Quality of Service) for wireless networks, to support Voice over IP, for example. |
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| 802.11g |
802.11g - 802.11 WLAN (wireless LAN) extenson that provides for up to 54 MBps raw data rate (24 Mbps useful throughput) in the 2.4 GHz band. It is expected to become the next mainstream WLAN technology.
802.11g defines the use of the 802.11a OFDM modulation technique and applies it in the 2.4 GHz 802.11b frequency band. The 802.11g draft standard requires backward compatibility with 802.11b. |
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| 802.11h |
| 802.11h is a supplement to 802.11a to make it meet European regulations on 5 GHz WLANs. |
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| 802.11i |
802.11i (a.k.a. WPA2) is a standard for wireless networks (ratified by IEEE 06.2004) that was specifically designed to provide better security than 802.11a/b/g.
The 802.11i standard introduces new encryption key protocols: TKIP (Temporal Key Integrity Protocol) and AES (Advanced Encryption Standard). AES uses longer keys with a new algorigthm, and is much more processor-intensive than WEP.
802.11i is also being branded as WPA2. |
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| 802.11j |
| 802.11j is the Japanese equivalent of 802.11h. It is a supplement to 802.11a to make it meet Japanese requlations on 5 GHz WLANs. |
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| 802.11k |
| 802.11k - standard that addresses radio resource management to make more efficient use of WLAN resources. |
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| 802.11n |
| 802.11n is a proposed WLAN standard to increase the speed of 802.11a/b/g wireless networks to over 100 Mbps, while maintaining compatability. It is espected to be ratified by the end of 2006. |
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| 802.11r |
| 802.11r - this standard will address fast roaming among access points. |
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| 802.11s |
| 802.11s - standard for Mesh Wireless Networks. It aims to define a MAC and PHY for meshed networks that improve coverage with no single point of failure. |
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| 802.15 |
| 802.15 is a standard for personal area netwroks, based on Bluetooth. |
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| 802.16 |
| 802.16 defines specifications for fixed wireless broadband. |
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| 802.16a |
| 802.16a (a.k.a WiMax) is WLAN specification allowing for transfer of up to 70 Mbps over as much as 30 miles. |
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| 802.1x |
| 802.1x is an authentication scheme based on EAP (Extensible Authentication Protocol). |
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| 802.20 |
| 802.20 - proposal for 1 Mbps wireless metropolitan area networks. |
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| Term |
Description |
Glossary