Wireless Access

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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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Airtime in wireless communication

  • 1.  Airtime in wireless communication

    Posted Aug 09, 2019 12:13 AM

    My Question is:

    At wireless core, communication is half duplex because only 1 device can send packet at one time. My first question is very very simple but i need a pure technical authorative answer for my own curiosity

    1. Assuming we have 2 or more clients, what determines how much transmit time each client gets ? meaning, how much time does client 1 gets to transmit ?  
    2. Based on above's answer, i may need to ask, is there anyway client 1 can starve client 2 and client 3 but not giving them any chance to transmit at all ? does it happens ?

  • 2.  RE: Airtime in wireless communication

    Posted Aug 09, 2019 12:22 AM

    1.  A very technical discussion of that is here:  https://www.cwnp.com/uploads/802-11_arbitration.pdf



    2.  I have seen clients dominate the medium when they are closer to the access point, because their packets are more likely to be successfully transmitted.  I have never seen any clients that are not able to transmit at all, however..