How to properly design a wireless network?

Question

Computer networks

Good afternoon.
Tell me, please, how to solve the problem:
1. The task is to use wireless access points in the current local network (one for each office). Our building is old, two-storey, the walls are up to 1 meter thick. I suspect that interference and speed reduction are possible due to the fact that the channels will intersect?
2. In addition to this, you need to balance traffic, if a lot of traffic passes through 1 access point, transfer it to another. As much as possible?
3. What equipment is suitable for these tasks?

Answer 1

cisco aironet - finally fire!
Budget solution or what?

Answer 2

1. At the points, you can reduce the signal strength so that it does not go outside the premises.
2. To solve the second point, you will either need to use an expensive network controller, or organize a Mesh
3. Depends on your budget. If you don't want to run cables to every point, Mesh is the only solution. If it is possible to lay cables, a competent minimal solution will require:
   
   • managed L2 switch with PoE , to which cables from all points will be connected
   • Points with PoE support
   • If there is no PoE support from the switch or points, PoE injectors or splitters will be required
   • Powering the points from local sockets is very unreliable, since when there are surges in the power supply network, the points can massively freeze, and installing a UPS on each point is expensive

Answer 3

Here I recalled an article on network design, perhaps you will find the answer to the first question.

Answer 4

ubiquiti unifi
cymbals
www.ubnt.com/unifi/unifi-ap They cling to the ceiling in the corridor, they penetrate well down and to the sides. Everything is controlled from one computer in a java program (multi-platform software). It is possible to control both each plate (speed, power), and all at once. Connection monitoring. If a user with a smartphone, laptop moves around the building, then there is a switch from plate to plate without pauses.
Guest connection, VLAN are possible.