Wireless networks emerged as a result of the development of a system designed to ensure communication in emergency situations. Later, this system was expanded, and its use became more widespread. Wireless network systems are used to provide uninterrupted internet connections without the need for complex infrastructure or physical cables, and at reduced costs.
In the case of wired systems, computers can be used within specific restrictions, while wireless connections do not impose such limitations. Wireless connections can also be used to communicate with wired connections. Thus, the process is completed without interruptions. The security and speed of these networks make them dynamically preferred.
The way wired connections work is largely known and visible. However, what arouses curiosity is how wireless connections function. As a company that sells Second-hand Network Equipment, we decided to explain in the continuation of our article how wireless connections work.
How do wireless networks work?
Wireless networks operate in the same way as regular routers. These routers generate small radio waves. They may have different characteristics depending on Wi-Fi standards. These characteristics include 802.11a, b, g, and n. Among these series, the most frequently used is 802.11b.
Nowadays, computers and laptops are produced with wireless functionality enabled. However, a device that does not have a wireless connection can be equipped with a PCMCIA card to obtain this feature.
As mentioned above, wireless networks operate on radio frequencies. The use of these radio waves is carried out in 3 different ways, as follows:
- Receiver
- Transmitter
- Receiver-Transmitter
Receiver:
It is a device that can receive radio signals but does not have the ability to transmit them. A simple example would be radios.
Transmitter:
These are devices that can only transmit signals. For example, television transmitters.
Receiver-Transmitter:
As the name suggests, these are devices that can both receive and transmit signals. For example, mobile phone base stations perform this function.
We have provided examples of devices necessary for the operation of the system. However, an important aspect in the field of communications is the direction of communication. This can be analyzed in 3 ways:
- Unidirectional transmission (Simplex)
- Bidirectional asynchronous transmission (Semi-Duplex, Half-Duplex)
- Bidirectional synchronous transmission (Full-Duplex)
