All system-level simulation examples in WLAN toolbox use constant bit rate (CBR) for application queuing. CBR generates application packets with the specified data rate and packet size by using a generic On/Off application traffic generation model.
You can use the ‘networkTrafficOnOff’ object in WLAN Toolbox to generate the On/Off application traffic pattern.
The information about how to configure the queuing model is explained in the ‘Model Configuration’ section of the ‘802.11 MAC QoS Traffic Scheduling’ example documentation.