The basics of wireless networking (connection not wire)

Wireless network, also known as Wireless Network, is simply a telephone or computer network that uses radio waves as a transmission wave, the physical layer. We can also understand, wireless network is a system of devices grouped together, communicating with each other via radio waves instead of using wires for transmission.

With wireless networks, modern technologies allow two or more devices to connect using the same protocol. Wireless networks are based on 802.11 technology, so they are also sometimes referred to as 802.11 Ethernet networks.

A wireless network is a computer network that uses wireless data connections between network nodes. Currently, wireless networks are loved by households, businesses, medium and large businesses that need to connect to the Internet but not through too many conversion cables. Wireless networks are managed by the radio communication systems of the carriers. These systems are centrally or discretely located in storage facilities.

With the advent of wireless networks, connections became simpler and cost-effective, and the installation of devices also became simpler. Devices are manufactured according to certain protocol standards and they can easily understand each other's languages. Each generation of wireless networks has its own set of suitable devices to use. If the F2103 modem uses GPRS/2G wireless network to transmit data, the F2403 is manufactured to use the WCDMA/3G network system thoroughly. The development of wireless communication brings many new ideas and practical projects to many industries, many areas in general, especially having a great impact on communication in industry.

Currently, there are many ways to connect wirelessly that we often see such as: Wifi network, 3G network, Bluetooth network, mobile phone network, wireless internal WLAN network, sensor network, satellite communication network, etc.

Currently, wireless networks have several network standards:

Standard A 802.11a: Operates in the 5GHz frequency band, with which many microwaves and phone waves operate. This can also be the source of interference. Coverage is limited to only about 20m although the speed is very high, can be up to 54Mbps. Wireless A is not compatible with standard B and standard G, because they operate in different frequency bands.

Standard B 802.11b: Operating in the 2.4GHz frequency band, can transmit data at 11Mbps over a wide range that can be as far as 45m. Also because of the wide range, it can be affected by other reflectors or broadcast signals such as mirrors, walls, etc., other devices and locations.

G standard 802.11g: Similar features to standard B but 5 times faster speed than 54Mbps. Currently, the G wireless standard has the best value and performance compared to other standards. Wireless B devices can work with G devices, although not at peak performance.

802.11n N standard: The next generation of high-speed wireless network, capable of supporting today's best broadband applications such as listening to music, watching videos, and voice. Wireless N is based on MIMO (Multilpr Input, Multiple Output) technology that uses multiple radio waves to transmit and receive data on multiple channels.

See more:

Risks of wireless connections in public places
What types of wireless networks are available today?
Types of devices commonly found in wireless networks
Working principle of wireless network
Models of wireless networks
The advent of wireless networks led to many different methods of transmitting information.