Some of the great technological advances of recent years
have been made possible by the development of wireless communications.
They are easy to install, have a low cost and facilitate access to the Internet everywhere.
They allow you to stay connected while on the go, anywhere, anytime, without being tied to cables.
In this way they help to reduce the digital gap of rural areas people.
Wireless communications also make the Internet of Things possible,
connecting thousands of devices to implement the smart city, smart home and industry 4.0.
However, wireless networks also have drawbacks.
To begin with, they depend on the use of the radio spectrum, which until recently was only used for listening to the radio or watching television.
Now it has to be spread across many more devices, causing more unstable connections.
In addition, radio signals are affected by multiple conditions, such as the distance between transmitter and receiver,
if the antennas are located in dense or isolated areas or weather conditions.
Having antennas nearby improves coverage, access speed and allows transmission with less power.
This, radiation is reduced and battery of the devices is saved.
Another aspect to take into account has to do with security. Wireless networks go through doors and walls
and this can make it easier for strangers to access. That is why there are security mechanisms.
Information can be encrypted to facilitate data privacy.
In homes, this protection is based on a password that must be strong and long to make access difficult for unwanted people.
In environments with more stringent security requirements, digital certificates are used.
However, it is important to always use secure applications.
You also have to be aware that wireless communication devices leave a footprint wherever they go.
With this trail you can follow or locate a person and it can be the gateway to various attacks.
If they are not used, it is better to turn off bluetooth or wifi. An action that saves battery.
Instead, it is important that the mobile operator can locate any device connected to the network,
to send you messages and calls.
Wireless networks are already essential for communications.
They are technologies in constant evolution, to improve their quality and safety.
That is why professionals in the field of telematics engineering and telecommunications are necessary, who design and manage them.
Reducing the digital divide or developing more sustainable and secure solutions depends on their work.