The age of computer technology and the development of technological progress made it easy to introduce the concept of wireless communication systems into the everyday life of most people. Although we do not see them, they literally surround us. What is a wireless system? These are those systems that use wireless (radio) signals to organize data transfer processes. Back in war times, such data transmission systems were successfully used to transmit important and speedy information. Wireless communication systems came to our life as an organization of home networks, most often having Internet access. Note that the Internet is also a kind of international network that allows people from different parts of the world to exchange information.
The necessary equipment for a wireless network is selected depending on the requirements of the user or on the purpose of the network itself. When making a choice, you must be guided by certain criteria. For example,
the data transfer speed within the network. This is an important characteristic of any equipment that cannot be overlooked, otherwise you risk not achieving the desired result. The
data transfer rate in a wireless network can be equal to 50 Mbps. Some new types of equipment that use the 802.11n communication standard can transmit data at speeds up to 5 times faster than the above. The second factor is the coverage area of the device. The larger it is, the farther the distance at which you can use your network. When assessing the required coverage range, you must be guided by the goals of creating a wireless network.
Wireless communication systems must provide the proper level of secure data transmission. When buying equipment, you should pay special attention to this, since not all modems, routers or transmitters are able to encrypt your signal well and prevent data leakage. Currently, the most common data
encryption protocols that can reliably protect information or "ether" are WEP, WPA2, WPA and others. As an alternative method of protection, access is often used with verification of login certificates, access with authorization and password entry.
A distinctive feature of the equipment may be mobility. Much depends on the destination. For example, you are a major provider and want to provide access to your network to several hundred people who are nearby. Then you will need to install a special tower, which will be in one place and provide a decent signal level and data transfer rate. If you plan to organize wireless communication systems in your office or at home, then you just need to get a wireless modem or router, which has a compact size and can be easily transferred to any “convenient” corner.
The concept of wireless mobility also includes the ability to switch between multiple access points without data loss. This opportunity was borrowed from mobile network operators, and its implementation requires special equipment.