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This article discusses a simple example where there are multiple stations connected to an Access Point, performing downloads simultaneously. A sample network setup constituting of a Wired Node, Router, Access Point and 4 Wireless Nodes is shown below:

Create a network scenario similarly and perform additional configuration as explained below:

1. Right-click on Wired link and set Uplink and Downlink speeds to 10 Gbps, BER = 0, Propagation Delay = 0This is done to ensure that the wired links can handle the traffic that is generated from the wired node to the wireless nodes. The default Wireless link speed is 100 Mbps.
2. Similarly right-click on wireless ink and set Channel Characteristics to NO_PATHLOSS for test conditions that do not take into account the loss due to channel characteristics. This can be modified later as per the requirement.
3. Right-click on Access Point->Select Properties->Interface_WIRELESS->Set 
   • Standard to 802.211ac, 
   • No. of aggregated packets (in v13.0, no. of aggregated frames) to 64, 
   • Transmitting antenna to 8, 
   • Receiving antenna to 8 and 
   • Bandwidth to 160MHz in Physical Layer. 
   • Do similar configuration in all the four wireless nodes
     
4. Select Transport Protocol as UDP for all four applications in the Application Configuration window.

   This is done to ensure that TCP Connection establishment does not happen for each of the four applications(network traffic) that is configured between the Wired Node and the Wireless nodes. Running TCP will have an additional impact on the flow of packets and the data rate.

   
   
5. Configure 4 CBR applications with Packet Size = 1460 Bytes and Inter Arrival Time = 10µs (Generation Rate = 1168 Mbps)
6. Run simulation for 10 seconds
7. After the simulation, you would see a throughput of 406 Mbps for each application, which indicates that the 1.6 Gbps PHY Rate available in 802.11 ac is split among four nodes.