802.11 Non-standard Equipment
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802.11 non-standard equipment is equipment that seeks to extend the
Wi-Fi Wi-Fi () is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for Wireless LAN, local area networking of devices and Internet access, allowing nearby digital devices to exchange data by ...
standard
802.11 IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of medium access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer c ...
, by implementing proprietary features.


Channel bonding

Chipmaker
Atheros Atheros Communications, Inc., was an American computer networking company independently active from 1998 to 2011. It produced semiconductor chips for network communications, particularly wireless chipsets. The company was founded under the nam ...
sells a proprietary
channel bonding In computer networking, link aggregation is the combining (wikt:aggregation, aggregating) of multiple network connections in parallel by any of several methods. Link aggregation increases total throughput beyond what a single connection could ...
feature called
Super G Super giant slalom, or super-G, is a racing discipline of alpine skiing Alpine skiing, or downhill skiing, is the pastime of sliding down snow-covered slopes on skis with fixed-heel Ski binding, bindings, unlike other types of skiing (Cros ...
for manufacturers of access points and client cards. This feature can boost network speeds up to 108 Mbit/s by using
channel bonding In computer networking, link aggregation is the combining (wikt:aggregation, aggregating) of multiple network connections in parallel by any of several methods. Link aggregation increases total throughput beyond what a single connection could ...
. Also range is increased to 4x the range of 802.11g and 20x the range of 802.11b. This feature may interfere with other networks and may not support all b and g client cards. In addition, packet bursting techniques are also available in some chipsets and products which will also considerably increase speeds. This feature may not be compatible with other equipment.


Compression

Broadcom Broadcom Inc. is an American multinational corporation, multinational designer, developer, manufacturer, and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data cen ...
, another chipmaker, developed a competing proprietary frame-bursting feature called " 125 High Speed Mode" or
Linksys Linksys Holdings, Inc., is an American brand of data networking hardware products mainly sold to home users and small businesses. It was founded in 1988 by the couple Victor Tsao, Victor and Janie Tsao, both Taiwanese immigrants to the United St ...
" SpeedBooster", in response to criticism of Super G's interference potential. U.S. Robotics also had a "MAXg" line of wireless products boasting 125 Mbit/s (actual throughput 35 Mbit/s) and about a 75% increase in signal range from the 802.11g standard. Based on tests performed by KeyLabs on March 23, 2005 the MAXg series consistently outperformed the equivalent proprietary solutions and some of the "Draft 802.11n" solutions from other developers; more than one year before commercially available "pre N" or "Draft N" adapters.


TDMA and polling

Various vendors implement proprietary TDMA polling modes, including Ligowave iPoll2/iPoll3, Mikrotik Nstreme/Nv2, and Ubiquiti airMAX.What is AirMax?
/ref> Such modes are generally incompatible with each other, nor with standard 802.11 clients. These modes are frequently used for long-range dedicated links and/or by
wireless Internet service providers Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided mediu ...
, as they by design avoid the
hidden node problem In wireless networking, the hidden node problem or hidden terminal problem occurs when a Node (networking), node can communicate with a wireless access point (AP), but cannot directly communicate with other nodes that are communicating with that ...
present in regular (CSMA/CD) Wi-Fi links.


Long-range Wi-Fi


References

{{DEFAULTSORT:802.11 Non-Standard Equipment IEEE 802.11 Proprietary hardware