Wlan basics

What is WLAN?

WLAN stands for “Wireless Local Area Network”. It is a type of computer network that allows you to transfer data such as: voice, video, Internet, applications, etc. without the need for tangled cables. Everything happens via radio waves. In Poland, “Wi-Fi” is used synonymously instead of the name “WLAN”.

How to choose a network?

WLAN network can operate in two frequency ranges – it can use the 2.4 GHz and 5 GHz bands. 2.4 GHz band is more popular. First of all, it is compatible with most devices – even those cheaper, less advanced or older. In addition, this frequency band effectively reaches many rooms, because it easily overcomes physical obstacles such as walls, doors or furniture.

What to watch out for when designing a WLAN?

Although WLAN network gives many possibilities and has many advantages, each technology also has disadvantages. Some of them can be eliminated – but you need to know what to pay attention to. When building a WLAN, walls, doors, and windows can be obstacles.

How to select devices for WLAN?

Access point is one of the key elements of the infrastructure that makes up the WLAN network. In addition, it also consists of network cards, antennas and electrical equipment (such as cables, power supplies, etc.). However, APs are so important that signal quality and network capacity depend on their arrangement and configuration. In practice, it is the access points that determine the comfort of work.

Good practices in building WLAN networks

It is worth remembering about WLAN project itself. This is because it can show the possibilities of the network from the very beginning, as well as predict various scenarios that may turn out to be helpful in the future. Such a preliminary design also enables a quick reaction to any difficulties.