How wifi wireless technology works

wifi wireless technology

How wifi wireless technology works

Many users of computers are keen to be aware of Wi-Fi technology these days. This is because they understand how they can take advantage of this technology. They get in touch with the digital world on the go by using Wi-Fi compatibility of any game device, operating system and the latest printer.  It is the right time to focus on different aspects of the wifi wireless technology in detail.

What is Wi-Fi?

Wireless Fidelity (Wi-Fi) is a wireless network. This wireless network uses radio waves similar to mobile phones, radios and TVs.  A two-way radio communication is the most common communication in this wireless network.

The most common terms relevant to Wi-Fi

In general, Wi-Fi connection is created through a wireless adapter. A hotspot is an area in the vicinity of a wireless router.  Hotspots are connected to the network and support users access all Internet services. If you have configured the Wi-Fi once, you can get the Wi-Fi connectivity to your device. The frequency range to get this Wi-Fi technology is between 2.4GHz and 5 GHz. This frequency range is variable as per the amount of data available on the network.

As a beginner to wifi wireless technology, you have to know the definition of Wi-Fi at first. Wi-Fi stands for the Wireless Fidelity.  Users of Wi-Fi at work or home get a wide range of benefits nowadays. They are willing to make use of this wireless technology in restaurants, hotels, schools, airports and libraries.  Experts in networking and IP address know that Wi-Fi is known as wireless networking or 802.11 networking. This is because this wireless technology covers the IEEE 802.11.

A short description about how Wi-Fi works

There are two steps in the Wi-Fi process. The following details explain these steps and reveal how Wi-Fi works.

The first step

  • A wireless adapter of a computer translates data into radio signals.
  • These translated signals are transmitted through an antenna.

The second step

  • A wireless router receives the translated signals from the antenna.
  • These signals are decoded by a wireless router and send to the Internet through a wired Ethernet connection.

You have to understand that the Wi-Fi involves two-way communication. The wireless router receives data from the Internet. This router translates these data into signals. Once it has done it, it sends these signals to the wireless adapter of a computer.

Gain knowledge of radio signals

The role of the radio signals in the wifi wireless technology is vital beyond doubt.  Radio signals only aid in the Wi-Fi technology.  Any computer, mobile phone or any other device within 300 to 500 feet from the Wi-Fi antennas can access the Wi-Fi network. These resources make use of an Internet connection to the network without the cord.

The main sources of the Wi-Fi technology are routers and antennas. This is because antennas and routers transmit and receive data in the form of radio waves. The most effective Wi-Fi router is enough to maintain the Wi-Fi within a radius up to 150 feet. The best in class Wi-Fi antenna is vital to maintain the Wi-Fi with a radius up to 500 feet.

Wi-Fi cards are very important to use the Wi-Fi technology. These cards may be internal or external.  You have to install this card in your computer before you accessing the Wi-Fi.  You can connect to the Wi-Fi without this card because you can use an antenna-equipped expansion card or connect a USB antenna attachment to the relevant port.  A PCMCIA card in a laptop is used to access the Wi-Fi.

Create a Wi-Fi hotspot

If you have planned to make a Wi-Fi and use this wifi wireless technology properly, then you have to identify how to create a Wi-Fi hotspot at first.  You can install an access point to the Internet connection for creating this hotspot directly. Do not fail to understand that this access point can transmit a wireless signal within a short distance. For example, this access point covers only 300 feet.  Once a device has encountered this hotspot, it can connect to the wireless network directly.

The most common locations of hotspots are including, but not limited to

  • Airports
  • Coffee shops
  • Campus environments
  • Hotels
  • Libraries
  • Book stores
  • Offices
  • Apartments

Wi-Fi Frequencies

A frequency range of a wireless network is between 2.4GHz and 5GHz. The Wi-Fi networking standard may vary as per requirements of users worldwide.

The 802.11a

The 802.11a is used to transfer data at 5GHZ frequency level. The main advantage of this mode is its high speed. Radio signals are divided into smaller signals by using the orthogonal frequency division multiplexing before these signals arrive at the router.  Data can be transmitted at 54 megabits per second in this mode.      

The 802.11b

The 802.11b is used to transmit data at 2.4GHz. The main disadvantage of this mode is its slow speed.  Users of this mode can transfer 11 megabits data per second.

The 802.11g

The 802.11g uses an orthogonal frequency division multiplexing coding to transmit 54 megabits data per second at 2.4GHz frequency level.

The 802.11n

The 802.11n is advanced type in the Wi-Fi categories.  This mode is used to transmit 140 megabits data per second at the 5GHz frequency level.

There are different hotspots in our time. However, 802.11b is a general Wi-Fi hotspot throughout the world.  Private Internet Service Providers only provide the largest Wi-Fi network in public places. These companies charge a fee to those who access to their Wi-Fi.  You have to identify and ensure that your wireless router is connected to the Internet connection.

Turn on your modem before you plug the router into a computer by using an Ethernet cable. The next step is to switch on a router and open any Internet browser.  You have to enter the IP address of a router and login to the administrative section of a router.  Now, set SSID as active and use the username and password specified by your ISP. You can prefer either WPA or WEP security. You can finish the Wi-Fi configuration by choosing a new passkey.

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