What is Personal Area
It is a computer network used for
communication among computerized
devices, including telephones and
personal digital assistants.
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).
A wireless personal area network
(WPAN) is a PAN carried over wireless
network technologies such as IrDA,
Bluetooth, Wireless USB, Z-Wave,
ZigBee, or even Body Area Network.
The reach of a WPAN varies from a few
centimeters to a few meters. A PAN may
also be carried over wired computer
buses such as USB and FireWire.
Wireless technologies used
Infrared Data Association
A Bluetooth PAN is also called a piconet.
Bluetooth uses short-range radio waves
over distances up to approximately 10
A cable attached the antenna to a
Bluetooth card in a computer. They later
named the antenna "The BlueSniper.“
Bluetooth devices such as a keyboards,
pointing devices, audio head sets,
Infrared Data Association
Infrared Data Association uses infrared
light, which has a frequency below the
human eye's sensitivity.
It is used in cell phones and TV remote
ps3 controllers controls.
Typical WPAN devices that use IrDA
include printers, keyboards, and other
serial data interfaces.
WiFi uses radio waves for connection
over distances up to around 91 metres,
usually in a local area network (LAN)
Wifi can be used to connect local area
networks, to connect cellphones to the
Internet to download music and other
multimedia, to allow PC multimedia
content to be stream to the TV (Wireless
Multimedia Adapter), and to connect
video game consoles to their networks
(Nintendo WiFi Connection).
Advantages of WPAN
Dynamic network setup
Usually quick and relatively
simple to set up
WPAN enabled devices are
Needs less technical skills to
deploy than LANs or WLANs.
Disadvantages of WPAN
Typically have a limited range
Currently limited to relatively slow data rates when compared
with WLAN technologies
Compatibility and interoperability issues (WPAN technologies
are not usually compatible with each other. Some WPAN
technologies such as Bluetooth are known to have had
interoperability issues between devices from different
As small devices that are often associated with WPANs often
have limited potential for adding extra hardware it is
sometimes difficult to find suitable upgrade equipment.
Devices with inbuilt WPAN technologies can be considerably
more expensive than devices without WPAN technologies.
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