What is the difference between a wireless LAN and a wired LAN in terms of protocol

Obviously different from the wired LAN network, the wireless LAN network is transmitted through the microwave into the lead trace line of the signal pants, this thing can not be seen, can not be touched, so the signal transmission security of the wireless LAN makes many wireless Internet users a little worried, in fact, as long as we are familiar with the signal transmission mechanism of the wireless network, and can use some security protection methods in a targeted manner, we will be able to make the wireless LAN security work to the end.

The signal transmission mechanism of a wireless network and a wired LAN network has the following differences:

Different transmission media: wired LAN networks use wired media such as network cables and optical fibers for data transmission, while wireless networks use radio waves for data transmission.

Different transmission rates: In general, the transmission rate of a wired LAN network is faster than that of a wireless network because the transmission medium of a wired network is more stable. However, recent wireless network standards such as WiFi 6 can also provide very fast transfer rates.

Different distance limitations: the transmission distance of wired LAN network is usually longer than that of wireless network, and the transmission distance of wireless network is affected by factors such as environment and signal interference, and the transmission distance is relatively short.

Different security: Since wireless networks use radio waves for data transmission, they are vulnerable to hacking and have less security. In contrast, wired networks use wired media for data transmission, which is relatively difficult to hack and has higher security.

Scalability is different: Because wired LAN networks require cabling, scalability is limited by physical cabling. In contrast, wireless networks are more scalable and can be expanded by adding wireless access points, etc.

To sum up, there are some differences between the signal transmission mechanism of wireless network and Jingchun thick line LAN network, and Liangzhen is mainly due to the difference in the transmission medium, transmission rate, transmission distance, security and scalability they use.

<> The differences between wired and wireless networks are mainly in:

1. Different equipment: the wired network needs to be connected with network cables between the devices, while the wireless network does not need to;

2. The anti-interference ability is different: the anti-interference ability of the network is stronger, and it is not easy to be accompanied by electromagnetic interference compared with the wireless network;

3. Stability is different: The network speed of wired networks is more stable than that of wireless networks.

1. Wireless LAN is the use of wireless technology to transmit data, voice and signal in the air. As an alternative or extension of traditional cabling networks, wireless LANs liberate individuals from their desks, allowing them to access information anytime, anywhere, and improve employee productivity.

2. Since WLAN is based on computer network and wireless communication technology, in the computer network structure, the requirements of the logical link control (LLC) layer and the application layer above it can be the same for different physical layers, or they can be the same.

3. Therefore, the WLAN standard is mainly for the physical layer and the media access control layer (MAC), involving the wireless frequency range used, air interface communication protocol and other technical specifications and technical standards.

4. In order to minimize performance loss, WLAN manufacturers use various technologies to improve wireless chips and antennas. If your organization requires very high performance for a particular application, or if the deployment environment is very disruptive and will severely reduce the performance of the enterprise-class WLAN, then you need to choose a provider that can provide the best WLAN performance.

The protocols used in wireless LAN are:

It is a wireless network standard issued by the Institute of Electrical and Electronics Engineers (IEEE) in June 1997. It was one of the first generation of wireless LAN standards. Specifies that wireless LANs operate in the band, which is defined by the Global Radio Regulations Organization as a spread-spectrum band.

The standard is mainly used to solve the wireless access of the office LAN and campus network with guess user and the user with the transfer of the user, and the maximum rate can only reach 2Mbit s.

It has become the current mainstream WLAN standard, adopted by most manufacturers, and the products launched are widely used in offices, homes, hotels, stations, airports and many other occasions, but due to the emergence of many new WLAN standards, it has attracted much attention from the industry.

Protocol standards for WLANs

It is a wireless LAN standard originally formulated by IEEE, which is mainly used to solve the wireless access between users and user terminals in office LANs and campus networks, and the service is mainly limited to data access, and the maximum rate can only reach 2Mbps. Since it could not meet people's needs in terms of speed and transmission distance, the standard was replaced.

Because WLAN is based on computer network and wireless communication technology, in the computer network structure, the requirements of the logical link control (LLC) layer and the application layer above it for different physical layers can be the same or different, therefore, the WLAN standard is mainly for the physical layer and the media access control layer (MAC), involving the wireless frequency range, air interface communication protocol and other technical specifications and technical standards used by the tanky.

For the above content, please refer to the Encyclopedia-WLAN protocol.