WiFi signal strength in Tunnels & Subways.

In summary, there is a common issue of low WiFi signal strength in tunnels, subways, and underground areas while traveling. This is due to the lack of wireless network coverage in these areas. However, there is a solution known as the "leaky feeder" system that can provide continuous WiFi, phone, and radio coverage in tunnels. This technology has not been implemented in all tunnels, but it is not a technological barrier and can be implemented in areas where it is needed.
  • #1
akerkarprashant
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TL;DR Summary
WiFi signal strength in Tunnels & Subways.
As we see the WiFi signal strength is very low as observed in Tunnels, Subways & Undergrounds while we travel in a train or walk. We do not get the wireless network.

Can there be any technical solutions for increasing the Wireless signal strength in these areas?

Can this be considered a technological barrier?
 
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  • #2
akerkarprashant said:
As we see the WiFi signal strength is very low as observed in Tunnels, Subways & Undergrounds while we travel in a train or walk. We do not get the wireless network.
Many tunnels have a "leaky feeder" system that provides continuous WiFi, phone and radio throughout the tunnel.
https://en.wikipedia.org/wiki/Leaky_feeder
I do not believe there is a technological barrier, it has simply not been implemented in your sample of tunnels. Where are the tunnels that need it ?
 
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What factors affect WiFi signal strength in tunnels and subways?

The main factors that affect WiFi signal strength in tunnels and subways are the distance from the WiFi source, the thickness and material of the tunnel walls, and any obstacles or interference present in the tunnel.

Why is WiFi signal strength weaker in tunnels and subways?

WiFi signals can become weaker in tunnels and subways because the signal has to travel through multiple layers of concrete or metal, which can block or weaken the signal. Additionally, the distance from the WiFi source can also contribute to weaker signal strength.

Can WiFi signal strength be improved in tunnels and subways?

Yes, there are several ways to improve WiFi signal strength in tunnels and subways. Some options include installing WiFi repeaters or extenders, using directional antennas, or implementing a distributed antenna system.

Are there differences in WiFi signal strength between tunnels and subways?

Yes, there can be differences in WiFi signal strength between tunnels and subways. For example, tunnels that are deeper underground or have thicker walls may have weaker signal strength compared to subways that are closer to the surface or have thinner walls.

How does the presence of people affect WiFi signal strength in tunnels and subways?

The presence of people can also affect WiFi signal strength in tunnels and subways. The more people there are in the area, the more devices there are competing for the WiFi signal, which can cause congestion and result in weaker signal strength for individual devices.

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