Wednesday, June 1, 2011

Wireless World


Wireless PAN

Wireless Personal Area Networks (WPANs) interconnect devices within a relatively small area, generally within a person's reach. For example, both Bluetooth radio and invisible Infrared light provides a WPAN for interconnecting a headset to a laptop. ZigBee also supports WPAN applications.[3] Wi-Fi PANs are becoming commonplace (2010) as equipment designers start to integrate Wi-Fi into a variety of consumer electronic devices. Intel "My WiFi" and Windows 7 "virtual Wi-Fi" capabilities have made Wi-Fi PANs simpler and easier to set up and configure.[4]

[edit]Wireless LAN

A wireless local area network (WLAN) links two or more devices using a wireless distribution method, providing a connection through an access point to the wider internet. The use of spread-spectrumor OFDM technologies also gives users the mobility to move around within a local coverage area, and still remain connected to the network.
  • Wi-Fi: "Wi-Fi" is a term used to describe 802.11 WLANs, although it is technically a declared standard of interoperability between 802.11 devices.
  • Fixed Wireless Data: This implements point to point links between computers or networks at two distant locations, often using dedicated microwave or modulated laser light beams over line of sightpaths. It is often used in cities to connect networks in two or more buildings without installing a wired link.

[edit]Wireless MAN

Wireless Metropolitan Area Networks are a type of wireless network that connects several Wireless LANs.

[edit]Wireless WAN

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