Reply To: change the speed of the subscriber , calculation of area nt.tuwien.ac.at > Reply To: change the speed of the subscriber , calculation of area Search for: 29. June 2016 at 14:29 #5718 Martin TaranetzMember Hi Ramdharma, you can employ the voip traffic model from +traffic_models. Please see +simulation_config.hex_grid_tilted_traffic.m how to configure it. High mobility can be modeled by specifying the user speed and a walking model from +walking_models. Best regards, Martin.