Introduction
Wireless communication is exchange of information
between two or more devices that are not connected by an
electrical conductor. A wireless local area network
(WLAN) links two or more devices over a short distance
using a wireless distribution method, usually providing a
connection through an access point for internet access.
The use of technology spread-spectrum or
Orthogonal Frequency-Division Multiplexing (OFDM)
technologies may allow users to move around within a
local coverage area, and still remain connected to the
network [1], [2]. Using Wireless Local Area Network
users can access internet without pulling the cable
network.
WLAN can overcome the problem of lack of wired
network, because it has the advantage, as follows:
Mobility: WLAN users can gain access to internet at
anywhere from one access point to another access
point, without preparing cable or network
infrastructure.
Scalability: WLANs can be configured to different
topology depending on the needs of the system.
Configuration can be easily changed from peer-topeer network until the number of users to full
infrastructure networks with thousands of users.
Installation and Simplicity: Wireless network is very
simple to configure. Simplicity of installation is
more cost effective, network setup and installation
do not need to use of cables
IntroductionWireless communication is exchange of informationbetween two or more devices that are not connected by anelectrical conductor. A wireless local area network(WLAN) links two or more devices over a short distanceusing a wireless distribution method, usually providing aconnection through an access point for internet access.The use of technology spread-spectrum orOrthogonal Frequency-Division Multiplexing (OFDM)technologies may allow users to move around within alocal coverage area, and still remain connected to thenetwork [1], [2]. Using Wireless Local Area Networkusers can access internet without pulling the cablenetwork. WLAN can overcome the problem of lack of wirednetwork, because it has the advantage, as follows: Mobility: WLAN users can gain access to internet atanywhere from one access point to another accesspoint, without preparing cable or networkinfrastructure. Scalability: WLANs can be configured to differenttopology depending on the needs of the system.Configuration can be easily changed from peer-topeer network until the number of users to fullinfrastructure networks with thousands of users. Installation and Simplicity: Wireless network is verysimple to configure. Simplicity of installation ismore cost effective, network setup and installationdo not need to use of cables
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