Wi-Fi needs no introduction. Starting from the institutions, industries, airports, to even shopping complexes, people look for it everywhere in contemporary life. Wi-Fi is basically a technology that provides web connectivity to a device within the network. A device gets Wi-Fi connection through a wireless adapter for generation of hotspots.
Hotspots are the zones in the surrounding area that are linked to the network, and let the user in enjoying web access. After being configured, the devices enjoy wireless connectivity through the Wi-Fi. In general, the frequency of the waves in such connections is set in accordance with the data requirement of the particular network.
However, the frequencies around two to five GHz can fulfill most of the requirements. Wi-Fi is technically also known as 802.11 networking. This is such as it is based on the IEEE 802.11 technologies. The best part of Wi-Fi is its ability to be attuned with all sorts of operating systems. At the same time, the technology can be accompanied with gaming devices and high-end printers as well.
How Wi-Fi Provides Connection
Functionality of Wi-Fi network is also based on the radio waves, just like the smartphones. It uses the radio waves to transfer data from one network to the other. However, the device needs a wireless adapter through which the data sent is converted in to radio signals. The signal is then transferred to the router through an antenna.
After being successfully decoded, the data is transferred to the web through Ethernet connections. These Ethernet connections are the wired connections. Wireless networks basically function like double way traffic. Hence, the data absorbed through the internet is also going to transmit through the router, which is coded in to radio signal. The radio signal is then received by the device’s wireless adapter.
Wi-Fi Frequencies and Networks
As explained above, the wireless network generally transmits information within the frequency band of 2.4 GHz or 5 GHz to deal with the loads of data being transferred by the user. However, the 802.11 networking standards alter up to some extents, in accordance with the need of the user. Talking about the networks, the 802.11a is going to transmit data at the frequency level of 5 GHz.
Here the OFDM concept is used for improving the data receiving capacity by splitting the radio signal in to various smaller components, prior meeting the router. One can transmit at most 54 megabits of data in a second through the network. Coming to 802.11b, this transmits data at 2.4 GHz, naturally a slower rate.
Here one can transmit the highest of 11 megabits of data in a second. 802.11g also transmit data at 2.4 GHz, but can transmit the highest of 54 megabits of data per second, powered by OFDM coding. Most advanced among these is the 802.11n network that can transmit as much as 140 megabits of data in a second, with a frequency level of 5GHz.
All about Hot Spots
Hotspot is an as frequently spelled term as of Wi-Fi. People immediately look for the hotspot after reaching a restaurant, shopping complex, hotel, etc, if it provides Wi-Fi connectivity. Hotspot is basically the zone where Wi-Fi access is available. The computer needs to have wireless adapter for accessing the hotspot facility provided. Most of the contemporary devices do possess native transmitters for this. For the old models, one may have a wireless adapter, through which one can plug in to the PCI or USB slot. There are software’s available as well for hotspot access.
Connect To Wi-Fi through External Modem
One can connect the device to Wi-Fi through a modem as well. For connecting with a wireless router, first thing to ensure is whether it has been connected with the internet connection point. Activate your external modem prior plugging in the router with the device through Ethernet cable. Switch on the wireless router to open the browser. Put the IP address, provide username and set wifi password. Now activate your SSID, and provide the username and password provided by ISP and pick in between WEP and WPA security. Select a new passkey to complete the Wi-Fi configuration.