Evaluating the Utility of UDG Using OMNeT++ Liu Sang 1 , Vishnupriya - - PowerPoint PPT Presentation
Evaluating the Utility of UDG Using OMNeT++ Liu Sang 1 , Vishnupriya Kuppusamy 2 , Anna Frster 2 , Asanga Udugama 2 , Ju Liu 1 1 Shandong University, China 2 University of Bremen, Germany OMNeT++ Community Summit 2017 University of Bremen,
1
1Shandong University, China 2University of Bremen, Germany
Liu Sang1, Vishnupriya Kuppusamy2, Anna Förster2, Asanga Udugama2, Ju Liu1 OMNeT++ Community Summit 2017 University of Bremen, Bremen, Germany September 07 – 08, 2017
Data Collection Trace based Mobility Model UDG Model
2
3
More realistic | GPS based
Simplest Used by simulators (ONE, Adyton)
4
UDG: Unit Disk Graph
5
BLE file GPS file OMNeT++ (Trace based mobility model + UDG model) Contact time traces
Input Output
BLE: Bluetooth Low Energy
22 users, 6 weeks
GPS coordinates | Interval 10 mins Gauss - Krüger map projection Convert: Cartesian coordinates
Received beacons | Interval 22 secs (unfixed) Threshold = 90 secs Convert: Contact times
6
*BluetoothContacts: developed by Jens Dede and Sarmad Ghafoor, ComNets, Uni-Bremen, Germany. https://play.google.com/store/apps/details?id=de.uni_ bremen.comnets.BluetoothContacts,
7
Current Position Next Trace Position
Functions
readWaypointsFromFile(int nodeId); setTargetPosition() override; setInitialPosition() override;
** INET framework is the library in OMNeT++ that includes all the protocols from physical layer to application layer.
** TraceBasedMobility Model Inheritance Diagram in INET
8
9
10
based on BLE and Simulations (with GPS Traces)
11
N - users K - parts of simulation TS - contact time of sim TB - contact time of BLE T - simulation time
12
13
14
15