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technische universität dortmund 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 Technology Communication Networks Institute P Prof. Dr.-Ing. Christian Wietfeld f D I Ch i ti Wi tf ld

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Co-channel Interference IEEE 802.11 AP IEEE 802.11 Node IEEE 802.15.4 Baum C max { P desire1 ,P desire2 , … , P desiren } = I Σ P interference Σ P I d interference d desired A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 2 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Interference Model IEEE 802.11b f = 2.4 GHz IEEE 802.15.4 f = 2.4 GHz Fully overlapping channels Fully overlapping channels considered network i Constant datastreams Wi-Fi: 100 mW (Wi-Fi) interferer network 1 network ZigBee: 10 mW ZigBee: 10 mW Dipole antennas (ZigBee) network ZigBee Wi-Fi AP i Coordinator 1 case 1 (downlink) interferer network N case 2 (uplink) (Wi-Fi) case 3 (internetwork) network case 4 (intranetwork) case 5 (internetwork) Wi-Fi AP N Potential interferer Potential interferer A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 3 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Multiscale Simulation Environment based on OMNeT++ Google SketchUp Raytracing Tool OMNeT++ Core Element of simulation Core Element of simulation Position New ChannelControl with 3D Map 3D Map Interference Model Interference Model • Manages heterogeneity in • Accurate Propagation Accurate Propagation network t k • Modeling realistic 3D RSSI Models environments • Channel depends on ZigBee Wi-Fi Wi-Fi • Simple User Interface the environment Online Channel Update Online Channel Update A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 4 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Application Scenario Forest Fire A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 5 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld OMNeT++ View on Application Scenario m 180m Fire Fighter 0 Fire Fighter 1 Fire Fighter 1 200m Raytracing Tool OMNeT++ A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 6 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Results of application scenario * ] ate [m] oordina y co * Minimum hold evaluation A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 7 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Conclusions Online raytracing channel model Online raytracing channel model � � Combination of static RSSI values with dynamical C/I changes � Interference model adaptable to various application fields � Much 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) A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 8 Heterogeneous Wireless Networks

technische universität Communication Networks Institute dortmund Prof. Dr.-Ing. C. Wietfeld Thank you for your Attention “ A new Dynamic Co-channel Interference Model for Simulation of Heterogeneous Wireless Networks ” A new Dynamic Co-channel Interference Model for Simulation of Volk Volker Köster Köster Slide 9 Heterogeneous Wireless Networks