a new dynamic co-channel interference model for simulation ...€¦ · communication networks...
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technische universitätdortmund
A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
Andreas Lewandowski, Volker Köster and Christian Wietfeld
Faculty of Electrical Engineering and Information TechnologyCommunication Networks InstituteP f D I Ch i ti Wi tf ldProf. Dr.-Ing. Christian Wietfeld
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Co-channel InterferenceIEEE 802.11 AP
IEEE 802.15.4
IEEE 802.11 Node
Baum
C max { Pdesire1 ,Pdesire2 ,…, Pdesiren }
I Σ P=
dinterference
I Σ Pinterference
ddesired
Slide 2Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Interference Model IEEE 802.11b f = 2.4 GHzIEEE 802.15.4 f = 2.4 GHzFully overlapping channels
(Wi-Fi) network
considered network i
interferer network 1
Fully overlapping channelsConstant datastreamsWi-Fi: 100 mWZigBee: 10 mW
(ZigBee) network
ZigBee: 10 mWDipole antennas
Wi-Fi AP iZigBee
Coordinator 1
(Wi-Fi) network
interferer network N case 1 (downlink)case 2 (uplink)case 3 (internetwork)
Wi-Fi AP N
case 4 (intranetwork)case 5 (internetwork)
Potential interferer
Slide 3Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
Potential interferer
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Multiscale Simulation Environment based on OMNeT++
OMNeT++Raytracing ToolGoogle SketchUp
Core Element of simulationCore Element of simulation
New ChannelControl with Interference Model3D Map
Position
Accurate Propagation
Interference Model
• Manages heterogeneity in
t k
3D Map
• Modeling realistic 3D
environments
• Simple User Interface
• Accurate Propagation
Models
• Channel depends on ZigBee Wi-Fi Wi-Fi
network RSSI
the environment
Online Channel Update
Slide 4Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
Online Channel Update
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Application Scenario Forest Fire
Slide 5Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
OMNeT++ View on Application Scenariom
180m
Fire Fighter 0
Fire Fighter 1Fire Fighter 1
200m
Raytracing Tool OMNeT++
Slide 6Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Results of application scenario *]
ate
[m]
oord
ina
y co
Slide 7Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
* Minimum hold evaluation
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Conclusions
Online raytracing channel modelOnline raytracing channel modelCombination of static RSSI values with dynamical C/I changesInterference model adaptable to various application fieldsMuch disturbance is expected during simultaneous use of Wi-Fi and ZigBee
Outlook
Adaptive bitrate adjustment within protocol simulation in OMNeT++Adaption to different wireless technologies (e.g. WiMAX or LTE)
Slide 8Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks
technische universitätdortmund
Communication Networks InstituteProf. Dr.-Ing. C. Wietfeld
Thank you for your Attention
“A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks”
Slide 9Volker Köster A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks