Traffic modelling in stratospheric drone-assisted VANET

For the first time, the influence of a Stratospheric Drone (SD) on data transmission in Vehicle Ad Hoc Network (VANET) was studied. Data transmission using SD requires reliable and fast two-way communication between the Service Provider (SP) unit, Road Side Unit (RSU), Vehicles and SD. Important questions are: whether existing terrestrial VANET can effectively interact with SD in three-dimensional space under heavy traffic and under what data transmission modes it is possible to provide the necessary Quality of Service (QoS) in VANET. To study these issues, we have developed simple models of communication channels “SP - RSU - Vehicle” and “SP - SD - RSU - Vehicle”. Dependences of the load for the RSU communication link with the vehicle On-Board Unit (OBU) and the transaction Travel Time (TT) on the Transaction Size (TS) are analyzed. Dependences of the RSU - OBU channel load and the TT parameter on the Bit Error Rate (BER) and the Packet Fail Chance (PFC) were obtained. The importance and usefulness of such numerical analysis lies in the ability to set traffic parameters and observe the resulting QoS under certain transmission modes.