How To Create an Outdoor Mesh Network with wifi cameras Circling a Neigborhood

How To Create an Outdoor Mesh Network with wifi cameras Circling a Neigborhood

How To Create an Outdoor Mesh Network with wifi cameras Circling a Neigborhood
How To Create an Outdoor Mesh Network with wifi cameras Circling a Neigborhood
7 hours ago
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We wanted to update our old cabled security camera system with TP-Link's VIGI C340-W cameras. We needed 29 wi-fi cameras surrounding our neighborhood. First, the local TP-Link tech experts advised us to create a mesh network with four EAP650 devices. It turned out that it is almost impossible for EAPs to catch each other's signals. Since, our contractor promised us a solution, he installed four additional EAP225, four CPE510, and two CPE710 with three separate routes that merge in our security building. However, it became a mess due to limited data transfer rates of CPEs (300mbps) that drop with each hop. As a result, we started experiencing low video quality (especially at night), very low frame rate (as low as 10fps), frequent drops in recording etc. due to signal and data transfer rate limitations.

 

Our neighborhood consists of 105 houses and the 29 security cameras surround them almost in a circle of 2.56 km.

The Tp-Link USA Outdoor Solution Guide suggests that EAPs can be only used on 3 hops to create a mesh network. Moreover, the Tp-Link data suggests that EAPs almost have 250 m range on 2.4 ghz, and may be some more on 5ghz if each cameras are connected to eaps via switch to turn them to 5ghz.

 

 

I would definitely be appreciated if you could kindly answer some of those following questions: 

- Is it possible to form a mesh network with supposedly 10 or more EAP devices? Can it be supported via software updates?

- If not should we only use CPEs to transfer video data of each camera one by one like a mirror?

- What would be a wiser solution for a large-scale wifi camera system like ours?

 

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Re:How To Create an Outdoor Mesh Network with wifi cameras Circling a Neigborhood
5 hours ago

  @MumtazY 

 

Caution, this post contains some reality.

 

Let's set some baselines:

- Mesh is not Magic

- There is no such thing as a free Lunch

- You can not eat your cake and have it too

 

Some constraints

- There are only 3 non-interfering 2.4G channels

- Mesh shares the 5.8G access radio with users' traffic

- All Mesh nodes subtending the same root AP must use the same 5.8G radio channel

- Traffic generated on first hop APs, generates 2X radio traffic, 2nd hop 3X radio etc.

 

Recommendations

- Only deploy linear strings of groups of 5 APs shaped like mAP - mAP -rootAP- mAP - mAP and avoid >2 backhaul links on any 1 AP

- Use EAP225-outdoors with directional antennae for the two outside AP nodes (leftmost and rightmost)

- Use wireless bridges to create new root APs where needed for coverage, using 60Ghz links (AirFiber) will free up more 5.8G user channels in dense areas

- Disable 5.8G access by users (in your case cameras), as this will greatly improve the backhaul speeds

 

Gotchas

- Most neighbourhoods are flooded latest generation gigabit plus home routers, which typically have at least two 2.4G radios and two 5.8G radios EACH and they broadcast at maximum power ALL the time

- Per above, every ISP home router occupies 66% or more of the available 2.4G space around them

- If you allow user traffic via your 5.8G radios they compete, packet for packet with every meshed packet moving through that AP, some of them move twice if they are being relayed through that node

- Assuming a dense noisy RF environment, you'll need to keep your radio links in the 100' (30m) range

 

I would say your project is very optimistic and your budget will likely have to supersize itself to even accomplish 1/4 of what you want.

 

 

 

 

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