Our country is amazing. Then we declare that we will make an incredible technological breakthrough with the help of nanotechnology or Skolkovo, then we rediscover the long-running technologies.
So, recently,
Mayor Sobyanin wanted Wi-Fi at metro stations and in the
park , the
President wanted it at universities . It seems that the interest of officials is a sign that the technology has taken place.
12 years after the appearance of the first standard, Wi-Fi began to be taken for granted, and it is logical that it should appear on the bus, in the metro, and in the institutes. The only thing that is alarming is the words “This is something that can become a big state program,” that is, something very expensive. In order not to be unfounded, I will give a typical example of a project, of which our partners have already made hundreds. The building (institute, office, hotel - there is no difference from the point of view of radio coverage). 100-150 employees (residents, students) per floor. Estimate the cost of equipment and materials.
To fully cover the floor of a typical building (without taking into account the load on the network), 4-6 access points are enough. We do not take extreme cases when the building is very large in area (for example, MSU), or compact. For budget coverage you need:
| Price | Qty | Total |
---|
Access Points UniFi | $ 150 | five | $ 750 |
Switchboard floor (8-10 ports 10/100 and 1-2 ports uplink GE)
| $ 300 | one | $ 300 |
Total cost of equipment per floor | | | $ 1,050 |
Floors (for example) | | | eight |
Total on all floors | | | $ 8 400 |
Network core switch (8 GE ports) | $ 500 | one | $ 500 |
Computer for control software | $ 500 | one | $ 500 |
Total cost per building | | | $ 9,400 |
This sign clearly shows that any university can build a high-speed Wi-Fi network on its own. And the majority are already built. There are schools, small institutions, dormitories.
Here's how it looks on the ceiling.

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I have already told about
UniFi and its
new features . A high degree of security of the university network is not necessary (with a competent user authentication system WPA2 is enough), all sorts of bells and whistles like L3 roaming and power balancing on access points are also useless.
The most important thing is that such university administrator systems or just enthusiasts can mount, configure and operate themselves without the involvement of expensive integrators.
And you can calculate for free how many access points you need to the building by writing to
wireless@comptek.ru .