802.11 non-standard equipment
   HOME

TheInfoList



OR:

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 local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves ...
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 media access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer com ...
, by implementing proprietary features.


Channel bonding

Chipmaker
Atheros Qualcomm Atheros is a developer of semiconductor Integrated circuit, chips for Computer network, network communications, particularly wireless chipsets. Founded under the name T-Span Systems in 1998 by experts in signal processing and VLSI desig ...
sells a proprietary
channel bonding In computer networking, link aggregation is the combining ( aggregating) of multiple network connections in parallel by any of several methods, in order to increase throughput beyond what a single connection could sustain, to provide redunda ...
feature called
Super G Super giant slalom, or super-G, is a racing discipline of alpine skiing. Along with the faster downhill, it is regarded as a "speed" event, in contrast to the technical events giant slalom and slalom. It debuted as an official World Cup event ...
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 ( aggregating) of multiple network connections in parallel by any of several methods, in order to increase throughput beyond what a single connection could sustain, to provide redunda ...
. 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 designer, developer, manufacturer and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data center, networking, software, broadband, wirel ...
, another chipmaker, developed a competing proprietary frame-bursting feature called "
125 High Speed Mode Broadcom Inc. is an American designer, developer, manufacturer and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data center, networking, software, broadband, wirel ...
" or
Linksys Linksys 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 and Janie Tsao, both Taiwanese immigrants to the United States. Linksys products in ...
" SpeedBooster", in response to criticism of Super G's interference potential.
U.S. Robotics U.S. Robotics Corporation, often called USR, is a company that produces USRobotics computer modems and related products. Its initial marketing was aimed at bulletin board systems, where its high-speed HST protocol made FidoNet transfers much fas ...
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 between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most ...
, as they by design avoid the
hidden node problem In wireless networking, the hidden node problem or hidden terminal problem occurs when a node can communicate with a wireless access point (AP), but cannot directly communicate with other nodes that are communicating with that AP. This leads to d ...
present in regular (CSMA/CD) Wi-Fi links.


Long-range Wi-Fi


References

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