WiFi or LAN? Pros and cons of both connections for your home network

Use a WiFi network or a LAN or Ethernet network? What is the best option when choosing one or the other for our house? Surely many of you have had this doubt sometime, today in Annex M we are going to try to give a little light in all this and that you can choose for yourselves the best option, the one that best suits your needs. Gone are the years when every computer was an island in the desert, now we can have our computers connected and share information with each other.
The LAN is a network that allows computers to communicate with each other physically, you need a cable that connects all computers belonging to the network. While the WiFi Network is a wireless network (also called WLAN), without wires, where computers exchange information through waves through the air. So far the simple explanation and that we all know because we have enjoyed them for a long time. But now let's expand a little more.
Nowadays, with computer advances, there is no better or worse option, but there is one option that adapts better to your needs than the other. We will go on to explain in detail the characteristics of each and so you will know which one you need.

LOCAL AREA NETWORK, LAN NETWORK

In a LAN network, a physical connection between the computers is necessary for them to communicate. Each computer has its own network card with an RJ45 input where the cable that allows transmitting the information in the network is connected. This cable is connected to a central router, usually, the operator offers different models, which is the one that manages all the communications of the network.
This twisted pair cable is the one that transmits all the data bits that are transferred between the different computers. Therefore we are seeing little by little the advantages and disadvantages of this connection system, we can send the information where the cable arrives, and it will be necessary that this cable is in perfect conditions for this information to arrive correctly.
Yes, we will have to physically reach a cable, but this cable has a capacity to transmit such information much wider than what a wireless network can have. Although there are different types of LAN (Ethernet, Token Ring, Arcnet) the most used in current homes is the Ethernet Network. This has greater data transmission capacity, as a rule, it is connected to a twisted pair cable that can transmit up to 1000 Mbit / sec.
The Ethernet network is capable of transmitting information to more than 100 linear meters without the need to install any signal repeater when the distance is higher, it is necessary to install a repeater. All the devices of an Ethernet network are connected to a Router, which is in charge of identifying each device by its MAC identifier and assigning it an identification IP within the network to access it. Of course, an alternative when we can not take the cable and we want to take advantage of its advantages is to resort to PLC devices. These make simulate a wired network making use of the electrical installation.

WIRELESS NETWORK, WIFI NETWORK

As its name suggests, the wireless network or WiFi is a network that does not need cables to communicate. Through radio signals, computers are able to communicate with each other and transmit information. A router is also necessary, although in this case it has to be a wireless router that receives the signal from each device, identifies it and allows it to transmit and receive information. It is the option to which we are all already accustomed to the popularization of laptops and now smartphones and tablets.
Being a wireless signal has the advantage that it does not need wiring, it arrives through the air. But this is also a handicap since it is more fragile, more susceptible to interference and with less reach. The maximum length of the range, without signal enhancers in between, is around 20 linear meters, which decreases according to the physical barriers that are involved. In a medium home, it is not usually a very big problem unless other networks generate "noise" or the material of the walls.
Thus, a brick wall will influence the distance to which our computer is able to transmit, and both the distance and the speed of data transmission will be affected. The more physical interference, less distance and lower speed, it is also very susceptible to other wireless waves, even to electricity sources. Although there are always some homemade tricks to improve the WiFi connection.
But, physical cables are not necessary, with all the comfort that this entails besides being the only option for some devices. We can have the computer connected to the internal network of our home and to the Internet without the need to install any annoying cable, in any part of our house.

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