Wireless LAN's

A Wireless LAN is a wireless local area networkfixed devices such as desktops and workstation
that connects two or more computers or devicesthat are equipped with the wireless network
without using wires. It is commonly called asinterface (NIC).
WLAN.Nowadays WLAN are becoming popular in more
It was developed by IEEE 802.11(Institute ofwide range of business customers.
electrical and electronic engineering).For example:
802.11standards use the Ethernet protocol andHospitals, Universities, Hotels, retail shops Are
CSMA (carrier sense multiple access with collisionusing this wireless technology to conduct their
avoidance) for path sharing.daily business operations.
WLAN devices allow users to move their laptopsBENEFITS:
from one place to another place within theirWireless LAN's offer five primary benefits USER
offices without the Need for wires and withoutMOBILITY:
losing network connectivity.Users can access files, network resources and
WIRELESS LAN'S:internet Without physically connected network to
Wireless LAN's allow greater flexibility andthe wires. RAPID INSTALLATION:
portability than the traditional wired LAN, that theThe installation time is very less because the
wired LAN requires a wire to connect a user'snetwork connection can be made without adding
computer to a network But the WLAN connectswires, or pulling it through walls or ceiling, or
computer to a network using an access pointmaking modification to the infrastructure cable
devices. This access point communicates withplant.
devices equipped with wireless network adaptersREDUCED COSTS:
and it connects to a wired Ethernet LAN. ThisThe initial investment of wireless LAN is little
access point Devices have a coverage area up tohigher than the wired LAN, but there is no need
300 feet (approximately 100 meters).of installation charges and the wiring charges.
WIRELESS LAN COMPONENTS:SCALABILITY:
A Wireless LAN comprises two types ofWLAN network topologies can easily be
equipments.configured to meet specific application and
1. A wireless stationinstallation needs and to scale from small peer to
2. Access point A wireless stations are equippedpeer network to very large enterprise network
with wireless networks interface cardthat enable roaming over a broad area.
(NIC).Access points are base station for theFLEXIBILITY:
wireless networks, they transmit and receiveUsers can quickly install a small WLAN for
radio frequency to communicate with wirelesstemporary needs such as a conference,
devices. Wireless clients can be Mobile device suchtradeshow or in the meetings. It Is flexible so we
as laptops, personal digital assistants, I phones andcan take WLAN in our necessary locations.