Wireless communication is one of the fastest growing technologies. The demand for connecting devices without the use of cables is increasing everywhere. Wireless LANs can be found on college campuses, in office buildings, and in many public areas.

Wifi (wireless fidelity) has brought a new dimension in the field of wireless networking. The transmission of data is done through the radio waves in the free space. It cuts down the cost of laying down the cables for network connections. The systems which are wifi enabled are mobile and can be used anywhere in the range of the network.

Wireless router.

Router is a connecting device, which receives the data from the source and route the data to its destination. Wireless routers refer to the devices in the wireless network, which receives the signal from a source and rout the signal to its destination by examining its SSID. Routers are generally used to interconnect two networks.

A wireless card.

Some systems which do not have in built wifi devices so they need an external interface card which connects the wifi device (a transmitting device) to the system. These cards can be connected to the PCI slot of the mother board .

Also in order to receive the wifi signal from devices our system should be equipped with a receiver. Nowadays receivers that can be connected through USB are also available.

Hence we see that wifi has numerous advantages. Nowadays wifi connections can be found on college campuses, in office buildings, in many public areas. If we consider the present world, we find that the demands for the wifi connections are increasing. People are beginning to appreciate the advanced features wifi network provides to the user. Due to its increasing demand the scope of the wifi network is also on the rise. Here we highlight the major benefits of installing a wifi network.

Firstly it cut down the cost of laying down the cable for network connection.Secondly with no wires attached it is possible that the sender node can be mobile.Thirdly the equipments required to fully establishing the wifi network anywhere is relatively cheap. So the cost incurred in establishing the wireless wifi connection is cheaper and also very easy to install. Wifi established in small place do not even need the wireless routers.

Lastly it is also possible for the user to have a better speed of Internet connection by using wifi network. Since the bandwidth provided by wireless cutwork is large connection speed between two nodes is faster. It is also faster to transmit data between two devices connected through wifi.