Abstract
Wi-Fi, which stands for “Wireless
Fidelity”, is a radio technology that networks computers so they connect to
each other and to the Internet without wires. It refers to wireless LAN
products based on the IEEE 802.11b specification. Users can share documents and
projects, as well as an Internet connection among various computer stations. A Wi-Fi network operates just like a wired
network, without restrictions imposed by wires .Not only does it enable users
to move around and be mobile at home and at work, it also provides easy
connections to the internet and business networks while travelling.
Virtual Private Networks (VPNs)
It provide the most robust security
solutions for corporate LANs and are already widely used for intranets and
remote access. A VPN typically utilizes a dedicated server that provides both
authentication and confidentiality. Wireless Access Points are also beginning
to include VPN technologies within their devices, allowing simplified VPN
deployment.A VPN works through the VPN server at the company head quarters,
creating an encryption scheme for data transferred to computers outside the
corporate offices.
Technology
Wi-Fi uses radio technology called IEEE
802.11b to provide secure ,reliable,fast wireless connectivity. A Wi-Fi network
can be used to connect computers to each other, to the internet and to the
wired networks. Though WLANs are easy to deploy, the network administrator or
IT professional will benefit from some basic knowledge about radio wave
propagation.
Introduction
Wi-Fi, or Wireless
Fidelity is freedom: it allows you to connect to the internet from your couch
at home, in a hotel room or a conferance room at work
without wires . Wi-Fi is a wireless
technology like a cell phone. Wi-Fi enabled computers send and receive data indoors and out; anywhere within
the range of a base station. And the best thing of all, it is fast. However you only have true freedom to be connected any where if your computer is
configured with a Wi-Fi CERTIFIED radio (a PC card or similar device). Wi-Fi
certification means that you will be
able able to connect anywhere there are other Wi-Fi CERTIFIED products – whether you are at home
,office , airports, coffee shops and other public areas equipped with a Wi-Fi access availability.Wi-Fi will
be a major face behind hotspots , to a much greater extent.More than 400
airports and hotels in the US are targeted as Wi-Fi hotspots.
Conclusion
Wi-Fi
provides freedom: freedom to physically move around your home or
business and still stay connected to the internet or local network; freedom to
grow and move an office or business without having to install new cables and
wires, freedom to be connected while travelling and on the road .Wireless
‘hotspots’(airports, hotels, coffee shops, convention centers and any other place where someone can connect to a
wireless network ) are being installed world while .
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