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Wireless Implementation

This type of network allows wireless devices to directly communicate with each other. Wireless devices within range of each other can discover and communicate directly without involving central access points. This method is typically used by two computers so that they can connect to each other to form a network.

If you have a strength meter for the signal coming from all the other ad-hoc devices the meter will not read the strength accurately, and can be misleading, because it is registering the strength of the strongest signal, such as the closest computer.

Wireless distribution system

When it is difficult to connect all of the Access Points in a network by wires, it is also possible to put up access points as repeaters.

Monitoring station

Good wireless network cards can be set up to monitor a network without connecting to an access point or revealing itself. This can be used for NIDS (network intrusion detection systems), diagnostics and troubleshooting. Or more malevolently, to sniff clear-text activity, or crack encryption.

Components of a Wireless LAN

Access Point(AP)

Access points are two-way transceivers that broadcast data into the surrounding environment. Access points act as a mediator between wired and wireless network.

Main article: Wireless access point

Concerns

Health

Main article: Wireless electronic devices and health

Wireless LANs use microwaves similar to those in mobile phones, so they share similar health concerns. Typical power levels from a wireless AP and a mobile phone handset in an urban environment are similar. However, due to fundamental differences in power levels and modulation, it is difficult to make a fair comparison. There have not been any significant studies into potential health effects of Wireless LANs.

See also

* Comparing WLAN and LAN
* Wireless LAN client comparison
* MANETs
* Microconnect Distributed Antennae
* SSID or service set identifier
* Wardriving
* Wireless community networks
* Wireless MANs
* Wireless PANs
* Ambient networks

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