Precautions for Wireless Networks

How can we improve the security of wireless networks? Here we will explain in detail the transmission bandwidth, transmission distance, and anti-interference capabilities.

Transmission bandwidth: similar to wired networks, data transmission in wireless networks is also limited by bandwidth. In addition, due to the absence of external shielding capabilities in radio transmission, the actual bandwidth limit is far greater than that in wired networks, even the most advanced wireless network technology can only reach 54Mbps per second, it is really dumb compared to the 100Mbps LAN.

Transmission Distance: both wired and wireless networks have signal attenuation. Compared with wired networks, due to air transmission, the attenuation rate is high and low as the climatic conditions change, the actual effective distance is often less than the maximum limit, especially in the room where electrical equipment is frequently used, the use distance is greatly shortened.

Anti-interference capability: wired networks are equipped with shielding layer and other technologies for anti-interference. If necessary, fiber-optic technology provides Gigabit transmission quality, while wireless networks do not have any shielding capability, the anti-interference performance can only be enhanced through wireless signal transmission strength, frequency, frequency hopping, and other technologies, which also leads to the difference in cost, volume, and usage.

Security: wireless network signals have no boundaries and anyone may intercept them. To ensure the security of wireless networks, some wireless technologies provide encryption functions to achieve excellent security, but it also increases costs and reduces compatibility.

Applicability: the inherent properties of wireless technology determine their approximate scope of use. Even if you try to forcibly use unsuitable technologies, there will be no suitable products. In general, wireless networks are more suitable for network systems with obvious mobile characteristics, while wired networks are more suitable for fixed network systems with high bandwidth requirements.

Health characteristics: the hidden danger of wireless networks lies in the green health. Mobile phones have been proven to have a considerable amount of radiation that may cause interference to brainwaves. In fact, wireless network cards and hubs also emit electric waves all the time. Although the effects of these waves on the human body are unclear, they cannot eliminate possible health problems.