Put an AP in the middle to relay the router signal. This method is troublesome, but it is the most effective and practical.
Add a signal amplifier to the wireless router or wireless network card. The transmitting signal of the router or wireless network card can be enhanced. However, the power of this kind of products is relatively large, generally exceeding 2000mW, which will be harmful to the health if used for a long time.
There is also a friction network card, which has a very high transmission power. Theoretically, the transmission range of 10G network card is 5600 meters, and the transmission power is above 1200mW, which is 20 times that of ordinary wireless network cards. Long-term use of high-power wireless transmitter, wireless radiation will be harmful to the body.
Therefore, it is recommended to install wireless AP to relay wireless signals. In this case, another advantage is that all users in the signal coverage area of wireless router and wireless AP can surf the Internet. Kill two birds with one stone. A small wireless local area network can be established.