Who stole our wireless network signal?

When deploying wireless networks, network signals are often interrupted or unstable, so we are often overwhelmed by these phenomena? What is the problem? When deploying a wireless network, every network administrator is concerned about how to improve the quality of wireless signals. In fact, the wireless signal transmission mode is basically the same as the optical transmission mode. When deploying a wireless network, the network administrator should be aware of various factors that weaken wireless network signals. Only in this way can blind spots in wireless signals be avoided as much as possible.

1. Fresh District

What is the fresh zone? In fact, it is a wireless signal blind zone when a wireless signal encounters a building. For example, if a wireless network is deployed in a large office of an enterprise. An interesting phenomenon occurs in an office that is separated by a wall. In a certain corner (not necessarily for this door), the wireless signal is very strong, but in another corner, there is basically no signal. The place with no signal is called the fresh zone.

Generally, if the block object is suspended, wireless network signals parallel to the ground will be diffraction around the upper and lower ends of the block object, for this reason, wireless network signals can usually cover the shadow part behind the block object. However, if the partition is not suspended, the wireless network signal will be blocked and the signal in the vertical direction will be negatively affected. As shown in, if this image is made of concrete or bricks and common glass or other materials are deployed to cut off the image, a wireless signal in the fresh area may appear on the back of the wall, that is, the signal blind zone. For this reason, if the network administrator places the Computer Host in the shadow of a wireless network, the wireless signal will be poor or even no signal. In this case, what should the network administrator do?

The simplest way is to change the location. As shown in, blind spots without new signals in an office often exist only in a specific area. In fact, the network administrator can regard this wireless network signal as a light source. From a wireless signal transmitting point to a place in the office, there is usually a strong signal. The shadow that the light source does not have is basically the blind area of the signal. In addition, the network administrator can perform tests in the office using tools such as the signal tester, and then select several locations with relatively strong signals. According to the author's experience, the signal near the door will not be good unless it is facing the door. On the contrary, if the door is a little farther away and not in the shadow area, such as a point, the signal here is usually the best. Therefore, the network administrator can consider placing the user's wireless terminal in this location.

2. select an appropriate Partition

In addition to changing the location of the user host to avoid this signal blind zone, there are other ways to avoid this situation. Because the wireless signal transmission is very similar to the optical transmission, but the optical transmission is tangible. For this reason, the author uses light as a metaphor. Assuming that the wireless transmitter is a light bulb, how can we avoid shadow in another office? This is easy to consider. If you can change the partition wall to transparent glass, the light can be transmitted to another office through glass, so that there will be no shadow. For example, you can also place some items with strong light transmittance in the place at point A, so that the light can be reflected to the shadow area through its surface. In this way, the shadow area can also have light. In fact, not only will there be such refraction and reflection, but also wireless signals.

When wireless network signals are transmitted in the air by means of electric waves, reflection may occur if intensive reflection substances, such as smooth painted walls. If the light is used, most light is transmitted from the light to all directions. However, some light may be reflected when it encounters an object in the room, so that the light cannot reach the original place. Therefore, the network administrator needs to fully apply the reflection of this wireless signal. In addition, when the light passes through some transparent substances, the light will also be reflected. So that the transparent material (such as glass) is partitioned to a place with good light.