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Encyclopedia > Personal area network

A personal area network (PAN) is a computer network used for communication among computer devices (including telephones and personal digital assistants) close to one person. The devices may or may not belong to the person in question. The reach of a PAN is typically a few meters. PANs can be used for communication among the personal devices themselves (intrapersonal communication), or for connecting to a higher level network and the Internet (an uplink). “Computer Networks” redirects here. ... Communication is a process that allows beings - in particular humans - to exchange information by several methods. ... The NASA Columbia Supercomputer. ... This article or section includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... User with PDA Personal digital assistants (PDAs) are handheld computers that were originally designed as personal organizers, but became much more versatile over the years. ... Look up uplink in Wiktionary, the free dictionary. ...


Personal area networks may be wired with computer buses such as USB and FireWire. A wireless personal area network (WPAN) can also be made possible with network technologies such as IrDA, Bluetooth and UWB. In computer architecture, a bus is a subsystem that transfers data or power between computer components inside a computer or between computers and typically is controlled by device driver software. ... Universal Serial Bus (USB) is a serial bus standard to interface devices. ... The 6-pin and 4-pin FireWire Connectors FireWire is Apple Inc. ... This article or section is in need of attention from an expert on the subject. ... The Infrared Data Association (IrDA) defines physical specifications communications protocol standards for the short range exchange of data over infrared light, for uses such as personal area networks (PANs). ... Bluetooth logo This article is about the electronic protocol named after Harald Bluetooth Gormson. ... Ultra-wideband (also UWB, and ultra-wide-band, ultra-wide band, etc. ...


Wireless

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A Bluetooth PAN is also called a piconet, and is composed of up to 8 active devices in a master-slave relationship (up to 255 devices can be connected in "parked" mode). The first Bluetooth device in the piconet is the master, and all other devices are slaves that communicate with the master. A piconet typically has a range of 10 meters, although ranges of up to 100 meters can be reached under ideal circumstances. Image File history File links This is a lossless scalable vector image. ... Bluetooth logo This article is about the electronic protocol named after Harald Bluetooth Gormson. ... A piconet is a network of computing devices using bluetooth technology protocols to allow one master device to interconnect with up to seven slave devices. ...


Recent innovations in Bluetooth antennae have allowed these devices to greatly exceed the range for which they were originally designed. At DEF CON 12, a group of hackers known as "Flexilis" successfully connected two Bluetooth devices more than half a mile (800 m) away. They used an antenna with a scope and Yagi antenna, all attached to a rifle stock. A cable attached the antenna to a Bluetooth card in a computer. They later named the antenna "The BlueSniper." This article does not cite any references or sources. ... A Yagi-Uda antenna. ...


Skinplex, another PAN technology, transmits via the capacitive near field of human skin. Skinplex can detect and communicate up to one meter from a human body. It is already used for access control for door locks and jamming protection in convertible car roofs.


See also

IEEE 802. ... Bluetooth logo This article is about the electronic protocol named after Harald Bluetooth Gormson. ... True wireless refers to WWAN connectivity. ... Ultra-wideband (also UWB, and ultra-wide-band, ultra-wide band, etc. ... FM-UWB is a modulation scheme using double FM: a low-modulation index digital FSK followed by a high-modulation index analog FM to create a constant-envelope UWB signal. ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... Ambient Networks is a network integration solution to the modern-day problems of switching from one network to the other in order to keep in contact with the outside world. ... The Absolute Zero’ jacket designed and developed by Corpo Nove through its research and development lab, Grado Zero Espace, Italy. ... An Internalnet is a computer network composed of devices inside and on the human body. ...

External links

  • Intrabody Signalling by Tom Zimmerman and Neil Gershenfeld
    • Archived version with working downloads
  • ZigbeeMania Resource site for LR-PAN networks, focusing on Zigbee and 802.15.4
  • SeV, Examples of popular PAN clothing.
  • ASPAN - Next Generation Personal Area Networks
  • smartnfc.com - Intra Body Communication and Personal Area Networks


  Results from FactBites:
 
Personal area network - Wikipedia, the free encyclopedia (372 words)
A personal area network (PAN) is a computer network used for communication among computer devices (including telephones and personal digital assistants) close to one person.
PANs can be used for communication among the personal devices themselves (intrapersonal communication), or for connecting to a higher level network and the Internet (an uplink).
Personal area networks may be wired with computer buses such as USB and Firewire.
Local area network - Wikipedia, the free encyclopedia (261 words)
A local area network (LAN) is a computer network covering a local area, like a home, office or small group of buildings such as a college.
A layout known as a spanning tree protocol is often used to maintain a loop free network topology within a LAN, particularly with ethernet.
LANs are distinguished from other kinds of networks by three characteristics: (1) their size, (2) their transmission technology, and (3) their topology.
  More results at FactBites »

 
 

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