Wi-Fi network application

The main purpose of wireless communication in everyday life is to access the Internet for visiting sites, chatting on the network, and downloading files. There is no need for wires. With the passage of time, the spread of access points across cities is progressing. In the future, it will be possible to use the Internet via Wi-Fi in any city without restrictions entry level engineering jobs.

Such modules are used to create a network within a limited area between several devices. Many companies have already developed mobile applications for mobile gadgets that make it possible to exchange information over Wi-Fi networks, but without connecting to the Internet. This application will organize a data encryption tunnel through which information will be transmitted to the other party.

The exchange of information is carried out much faster (several tens of times) than the known to us Bluetooth. The smartphone can also act as a game joystick in connection with a game console or a computer, and perform the functions of a Wi-Fi TV control panel.

How to use a Wi-Fi network

First you need to buy a router. A power cable must be inserted into the yellow or white socket, set up according to the attached instructions.

On receiving devices with a Wi-Fi module, turn it on, search for the required network and make a connection. The more devices are connected to one router, the lower the data transfer rate will be, since the speed is equally divided among all devices.

The Wi-Fi module looks like a regular flash drive, the connection is via the USB interface. It has a low cost. On the mobile device, you can turn on the access point, which will act as a router. While the smartphone is distributing the Internet via an access point, it is not recommended to overload the processor on it, that is, it is undesirable to watch videos or download files, since the speed is divided between the connected and the distributing device on a residual basis.

Wi-Fi technology makes it possible to access the Internet without a cable. The source of such a wireless network can be any device that has a Wi-Fi radio. The propagation radius depends on the antenna. Using Wi-Fi, groups of devices are created, and you can also simply transfer files.

The benefits of Wi - Fi

No wire pulling required. This saves money on cabling, wiring and time.

Unlimited network expansion, with an increase in the number of consumers, network points.

There is no need to spoil the surfaces of walls, ceilings for cable laying.

Globally compatible. This is a group of standards that works on devices manufactured in different countries.

Disadvantages of Wi - Fi

In the near abroad, the use of a Wi-Fi network without permission is allowed to create a network in premises, warehouses, and in production. To connect two neighboring houses with a common radio channel, an appeal to the supervisory authority is required.

Legal aspect. Different countries have different attitudes towards the use of Wi-Fi transmitters. Some states require all networks to be registered if they operate behind premises. Others limit transmitter power and certain frequencies.

Communication stability. Routers installed at home, of common standards, transmit a signal at a distance of 50 meters inside buildings, and 90 meters outside the premises. Many electronic devices, weather factors reduce the signal strength. The distance range depends on the frequency of operation and other parameters.

Interference. In cities, there is a significant density of router installation points, so there are often problems connecting to the point if there is another point nearby that operates on the same frequency with encryption.

Manufacturing parameters. It often happens that manufacturers do not adhere to certain standards for manufacturing devices, so access points may have unstable operation, the speed differs from the declared one.

Electricity consumption. Power consumption that is large enough to reduce the charge on batteries and accumulators increases the heating of the equipment.

Security. Data encryption according to the WEP standard is unreliable, easily hacked. The WPA protocol, which is more reliable, is not supported by access points on older hardware. The WPA2 protocol is considered the most reliable today.

Limitation of functions. During the transmission of small packets of information, a lot of overhead information is appended to them. This makes the connection quality worse. Therefore, it is not recommended to use Wi-Fi networks for organizing the operation of IP telephony using the RTP protocol, since there is no guarantee for the quality of communication.

Features of Wi-Fi and Wi MAX

Wi-Fi networking technology was primarily created for organizations to move away from wired communications. However, this wireless technology is now gaining popularity for the private sector. The types of wireless connections Wi-Fi and Wi MAX are related in their tasks, but solve different problems.

Wi MAX devices have special digital communications certificates. Complete protection of data streams is achieved. Private confidential networks are formed on the basis of Wi MAX, which make it possible to create secure corridors. Wi MAX transmits the necessary information, regardless of the weather, buildings and other obstacles.

Also, this type of communication is used for high quality video communication. It is possible to highlight its main advantages, which are reliability, mobility, high speed.