Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Estimating number of APs

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  • 1.  Estimating number of APs

    Posted Jan 17, 2020 05:33 PM
      |   view attached

    Hi, 

     

    I´m reviewing ACDP Official Certification Study Guide and I have a doubt. In RF Planning module, Aruba indicates a formula to estimate number of APs for two ways: 

     

    - Coverage based design (estimate) 

     

    Example calculation: 

    100,000 sq footage building 

    100,000/5000 --- 40 APs

     

    - Capacity based design - High Density (estimate)

     

    Example calculation: 

    100,000 sq footage building 

    100,000/2500 --- 66 APs

     

    In both cases, when I make the math, the result is different. In first case I get 20 APs, and the second 40 APs. What could be the mistake?

     

    Attached the image of the book calculation.

     

    Thanks for your help.



  • 2.  RE: Estimating number of APs
    Best Answer

    Posted Jan 17, 2020 06:17 PM

    It's a typo in the book. The recommendation in the book for coverage is  one AP for every 5000 sq feet, so 100,000/5000 = 20

     

    For capacity it is one AP for every 2500 sq feet, so 100,000/2500=40

     

    For high-capacity it is one AP for every 1500 sq feet, so 100,000/1500=66

     

    I hope this helps,