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Wireless
Network
Wireless
Network communication brings fundamental changes to data networking
and telecommunications, and makes integrated networks a reality.
Wireless Networks focuses on networking and user aspects. Wireless
Network architecture for personal communications systems, wireless
LANs, radio, tactical and other Wireless Network, and design and
analysis of protocols are addressed on a regular
basis.
A Wireless
Network allows a user to access network resources, including the Web
and e-mail, without requiring the user's computer to be physically
connected to a network wall jack. The Wireless Network signal is
broadcast from an access point, which is hardwired to the network,
and properly configured computers detect that signal and establish
the network connection.
Radiation
Fields in Wireless Network:
There are three
traditional radiation fields in free space as a result of an antenna
radiating power.
- Near-field,
also called the reactive near-field region, is the region that is
closest to the transmitting antenna and for which the reactive
field dominates over the radiative fields.
- Fresnel zone,
also called the radiating near-field, is that region between the
reactive near-field and the far-field regions and is the region in
which the radiation fields dominate and where the angular field
distribution depends on distance from the transmitting antenna.
- Far-field, or
Rayleigh distance, is the region where the radiation pattern is
independent of distance from the transmitting
antenna.
The Wireless
Network can provide connection speeds up to 11 Mbs (megabits per
second), similar to dormitory connections. However, the signal
broadcast by the access point is a shared resource, and the number
of users connected to an access point at any given time can affect
the available bandwidth.
Similarly, the
distance from the access point to the user's wireless card antenna,
as well as intervening obstacles (walls, metal objects, etc.), will
determine the signal strength and thus whether service is available
and at what rate. Generally in Wireless Network the wireless data
rate (speed) decreases with signal strength. At this time users are
limited to one Wireless Network connection and must register their
wireless cards with the service provider before they will be allowed
to use the service. The Wireless Network is a shared resource,
meaning the connection speed experienced by each user depends on how
many, and in what manner, clients are using a given access point. Do
not engage in any activities that may compromise the level of
service available to other members.
Want to keep
abreast of new contract awards and other wireless carrier news?
Interested in learning more about rapidly changing standards such as
CDMA, TDMA, WCDMA, and GPRS? Looking for the latest systems and
equipment to build or run your Wireless Network? Need to identify
and select suppliers? Then you need the expert advice of Wireless
Design Online, the premier sourcing site for the wireless industry
at: http://www.wirelessnetworksonline.com . In addition, you can keep up with the
latest information in the wireless carrier community
through:
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