WLAN NETWORK  What is it + Types + How to create ▷ 2020

It is common to have an Internet connection in our homes Wifi. What not many people know is how the Internet signal reaches the devices that we connect to that wireless network. This is due to a technology that implements a local area network, called WLAN.

This network has a series of characteristics that make them unique, so it needs a certain configuration and components so that they can work correctly.

We invite you to continue reading for you to learn about what a WLAN network is. In the following paragraphs you will find the answers to many of your questions.

What is a Wireless Local Area Network and what is it for in computing?

What is a Wireless Local Area Network and what is it for in computing?

A “Wireless Local Area Network” or “Wireless LAN” Or simply “WLAN”, is a local area network that uses electromagnetic radio waves to send and receive data to a router. For this, it is necessary that the distances between the components do not exceed many meters. An example of this is the wireless WiFi network that we have in our homes.

There can be networks with simple designs and also with more complex structures, in which repeaters of the device that emits Internet signals are added. It is characterized by allowing point-to-point connections. They differ from LAN networks by their physical link, since the latter have their connections through coaxial cables or optical fiberswhereas WLANs are 100% wireless. Its installation is much simpler than other networks because it does not require a lot of wiring for the configuration of the router.

They have the great advantage that the participants, or network nodes, can move freely within the coverage area., but as a disadvantage, with respect to a LAN network, we can say that it is more vulnerable to interference than a wired network. We can also mention as a negative point its higher cost than that of a Red lan. The standard channels used are 802.11a, 802.11b and 802.11g and have a frequency of 2.4 GHz. In most modern modems, this frequency is 5 GHz.

The connection speed is relatively slow compared to a wired network. Also, being a wireless network, presents significant security concerns. This is because it is easy to get into the internet access point and become part of the network.

What types of local wireless networks are there?

What types of local wireless networks are there?

There are 4 types of Wireless or wireless networks in which they are characterized by connecting the participants of this kind of networks by wireless means. They use the sending and receiving of information to the ports through radio waves.

They differ from each other by the coverage area they cover. According to this we can classify wireless networks as:

  • WWAN, Wireless Wide Area Network: It is a wide coverage network that is used in large geographical areas by means of antennas and cellular technology. An example of this is the Internet.
  • WMAN Network, Wireless Metropolitan Area Network: It also has a wide range, but it is much smaller than the previous network. It is related to metropolitan areas or places that have less reach. We can name WiMax as an example. It has a distance of between 70 to 100 kilometers.
  • Wireless Local Area Network or WLAN: Its coverage area is much smaller and focuses especially on areas where there is a more complete control of the participants. We can name a WiFi network from a train station. Its distance from the access point is no more than 20 km.
  • WPAN or Wireless Personal Area Network: Use radio waves to have a coverage of a few meters. An example of this type of network is Bluetooth.

Components of a WLAN Network What does it take to create one?

Components of a WLAN Network What does it take to create one?

The components required to create a WLAN network are the following:

  • Network card or Network Interface Controller (NIC): With this hardware integrated into a device by means of an electronic circuit board, it allows connection with the different nodes to transmit and receive data. When a network card is manufactured, it is assigned a unique 48-bit hexadecimal number, which is used to identify the device during its useful life. This is known as a MAC address..
  • Antenna: It is one of the easiest components to understand. Their work aims to send and receive the data through electromagnetic waves. There are a significant number of forms of these hardware, which will depend on the length of the signal they want to emit. They can be directional, omnidirectional or sectorial.
  • Router or router device: The main function of this component is to route electronic data between requests made by users with another network, such as the Internet. At the same time, also receives the data sent by another network and redirects them to the device that requested such information.
  • Access point or Access Point: It is responsible for connecting the devices to each other to be able to transmit the data wirelessly or wired. It is assigned an IP address that is used to configure it within the network. It has 3 modes, the “Root”, with which all devices can access the access door, there are also the “repeaters”, to extend the signal for more meters. And the last type of access point is through a “Bridge (Bridge Point)” where they are used when only 2 nodes can communicate with each other, being able to be local or remote.
  • Wireless Client: This is a device that needs to communicate with the access point and receives or sends the data to the router through a root or Bridge Point in order to access another network.

If you have any questions, leave them in the comments, we will answer you as soon as possible, and it will be of great help to more members of the community. Thank you! 😉

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