Unmanned Aerial Vehicle (UAV) Communication

Framework for co-simulation of UAV flight dynamics and UAV-BS network communications and network performance analysis.

UAV flight dynamics modeled using MATLAB UAV toolbox.
For Each UE in NetSim, a UAV is instantiated in MATLAB as per the UE (UAV) ID.
MATLAB calculates the flight path and passes this as a mobility file (x, y, z vs. time) to NetSim.
In NetSim UE movement is modelled per this mobility file
Pathloss model in NetSim per TR 36.777 (Aerial Vehicles)

UAV Takes off and flies away

UAV take off: Z axis varies from 0m to 750m
Saturation (full buffer) traffic
Simulation Time: 100s
Application Throughput over simulation time is plotted.

UAV flies in a holding pattern over the gNB

UAV takes off and flies in a holding pattern around the gNB
Saturation (full buffer) traffic
Simulation Time: 100s
Application Throughput over simulation time is plotted

Performance Analysis

NetSim Through Plot

Case 1: Discussion

UAV is closest to gNB at takeoff. The throughput is ~8Mbps
As it climbs and flies, at round 10s the throughput reduces to ~4Mbps
The UAV loses the connection with the gNodeB at ~ 45s

NetSim Through Plot

Case 2: Discussion

UAV at take-off (nearest to gNB) can see a throughput of ~ 15 Mbps
The throughput drops as it flies away from the gNB
The throughput then varies periodically. It is highest at two points when UAV’s flight path brings it close to the gNB.

Reference:

Check out detailed documentation, for code and scenario explanation