Wireless access simultaneously in a constrained space with too many APs in place

[madhankumar.g]

Hi,

I am upon implementing cisco unified wireless in our customer premises. We are using cisco 1252 APs to give Wireless access. These CAPWAP APs are managed by WLC.

There is a Lecture hall with 900 seater capacity. Customer wants our Wireless solution to give simultaneous access to all users in this hall. As per the assumption that each AP supports max of 25 users, We need to place 36 APs in this hall. This situation compels us to place the APs in very close proximity, say 5m apart from each. I am seriously afraid of the possible interference between the radio signals from nearby APs. The client can possibly receive good strengths of signal from 4 APs simulataneously.

Does this Scenario brings much of a interference issue, and will there be client association issues in this scenario. Whether there is any method to accomodate such large number of users in a constrained space with simultaneous access. Please suggest.

Regards,

Madhan kumar G

[Nicolas Darchis · Accepted solution]

Sounds like a duplicate post. Your previous post mentioned 50 clients and 2 APs ...

If you have 900 clients that are only 2.4Ghz (b/g/n) capable, forget about it. I truly hope that some clients are 5ghz capable.

You have only 3 channels in 2.4ghz : 1,6,11. So it's pointless to put more APs than that in the same coverage zone.

All you can do is reduce the AP power to the minimum so that their coverage zone is as small as possible. Then you can put again 3 other APs outside of that coverage zone.

Try also to orient antennas (directionnal if possible) so that APs target different zones.

But prepare your expectations, because it will be bloody for sure :-)