There are many router signal enhancers outside. Can those really enhance the signal?

Routers at home are often arranged in the living room, such as a weak box or next to the TV. However, in the bedroom, bathroom and other places, the WiFi signal is very weak and it is impossible to brush the video happily. Why?

Attenuation of WiFi signal in home environment

WiFi signals will be attenuated with the transmission distance and obstacles in the path.

WiFi signal attenuation

However, the performance of the network decreases with the weakening of signal strength.

WiFi24G signal attenuation

WiFi5G signal attenuation

Performance degradation caused by weak signal will lead to feeling when using WiFi.

WiFi signal strength and feeling

WiFi signal amplifier works directly, as shown in the figure below.

Working principle of WIFI signal amplifier

The WiFi signal amplifier is placed between the router and the terminal equipment.

On the one hand, the WiFi signal amplifier is connected to the router, which has good signal quality and can maintain high speed.

On the other hand, the WiFi signal amplifier releases the same wireless name as the upstream router, and the terminal is directly connected with the WiFi signal amplifier, so the signal quality of this link is also good and the high speed can be maintained.

Therefore, the WiFi signal amplifier can improve the sensing performance of the network.

Ordinary WiFi signal amplifier has only one RF chip, so it connects the upstream router and its own router on the same channel. According to the requirements of WiFi protocol, all communication channel devices enjoy bandwidth, so the maximum performance of this network will be halved.

So, isn't it impossible to improve the network quality with half of the maximum performance networking? Even if the maximum performance is reduced by half, it can effectively improve the network experience under weak signals. First, upgrading from weak signal connection to strong signal connection can effectively improve the packet loss rate, thus obviously improving TCP layer retransmission, and the network delay and congestion experienced by users will be significantly reduced.

Advantages of signal amplifier

Secondly, when the signal is weak, the terminal will often scan the surrounding APS more frequently and try to roam to the AP with better signal. This scanning process will obviously reduce the network bandwidth and bring obvious additional delay.

Thirdly, when strong signal connection is used, both connection links use high-speed transmission, which can significantly improve the overall performance of the whole network.

Advantages of WIFI signal amplifier 2

As mentioned above, the WiFi signal amplifier can improve the actual environment, but because of its working principle, it also brings the biggest performance loss, so is there a perfect WiFi signal amplifier?

Function of Perfect WiFi Signal Amplifier

The perfect WiFi signal amplifier should have the following characteristics:

Is there such a perfect WiFi signal amplifier on the market? Roughly speaking, we have never seen such a perfect WiFi signal amplifier. So, can't such a perfect WiFi signal amplifier be realized? This can be achieved.

The router scheme is generally SoC+ independent radio frequency (2.4/5.8). According to the current chip solution, this form of router can be realized.

When some manufacturers implement WiFi signal amplifiers, their own networks and existing routers are not in the same two-layer network, which will affect the realization of some common services based on two-layer network broadcasting, such as typical WiFi screen projection, intelligent hardware configuration networking and so on.

When WiFi signal amplifier is not used.

Ordinary home network

Using WiFi signal amplifier may isolate to two networks.