The Experts below are selected from a list of 3 Experts worldwide ranked by ideXlab platform
Troels Pedersen - One of the best experts on this subject based on the ideXlab platform.
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Propagation Graph Modeling of Time-Varying Radio Channels
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018Co-Authors: Kristoffer Stern, Andreas Jonas Fuglsig, Kasper Ramsgaard-jensen, Troels PedersenAbstract:Radio Systems operating in time-varying propagation environments are exposed to rapid fading in the transfer function due to multi-path effects. In general propagation environments, where recursive scattering may occur, modeling and simulating the channel is challenging. In this contribution, we model the channel as a time-varying propagation graph induced by vertices representing transmitters, receivers and scatterers and edges representing the propagation conditions between the vertices. For time-varying Systems a closed form expression for the transfer matrix of the graph is not available and therefore we introduce an approximation by assuming the graph model to be an approximately Underspread System. We give a bound for the resulting approximation error. Finally, simulations illustrate how the model can be applied for simulation of a vehicle-to-vehicle tunnel scenario with time-varying delays and Doppler-shifts.
Kristoffer Stern - One of the best experts on this subject based on the ideXlab platform.
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Propagation Graph Modeling of Time-Varying Radio Channels
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018Co-Authors: Kristoffer Stern, Andreas Jonas Fuglsig, Kasper Ramsgaard-jensen, Troels PedersenAbstract:Radio Systems operating in time-varying propagation environments are exposed to rapid fading in the transfer function due to multi-path effects. In general propagation environments, where recursive scattering may occur, modeling and simulating the channel is challenging. In this contribution, we model the channel as a time-varying propagation graph induced by vertices representing transmitters, receivers and scatterers and edges representing the propagation conditions between the vertices. For time-varying Systems a closed form expression for the transfer matrix of the graph is not available and therefore we introduce an approximation by assuming the graph model to be an approximately Underspread System. We give a bound for the resulting approximation error. Finally, simulations illustrate how the model can be applied for simulation of a vehicle-to-vehicle tunnel scenario with time-varying delays and Doppler-shifts.
Andreas Jonas Fuglsig - One of the best experts on this subject based on the ideXlab platform.
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Propagation Graph Modeling of Time-Varying Radio Channels
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018Co-Authors: Kristoffer Stern, Andreas Jonas Fuglsig, Kasper Ramsgaard-jensen, Troels PedersenAbstract:Radio Systems operating in time-varying propagation environments are exposed to rapid fading in the transfer function due to multi-path effects. In general propagation environments, where recursive scattering may occur, modeling and simulating the channel is challenging. In this contribution, we model the channel as a time-varying propagation graph induced by vertices representing transmitters, receivers and scatterers and edges representing the propagation conditions between the vertices. For time-varying Systems a closed form expression for the transfer matrix of the graph is not available and therefore we introduce an approximation by assuming the graph model to be an approximately Underspread System. We give a bound for the resulting approximation error. Finally, simulations illustrate how the model can be applied for simulation of a vehicle-to-vehicle tunnel scenario with time-varying delays and Doppler-shifts.
Kasper Ramsgaard-jensen - One of the best experts on this subject based on the ideXlab platform.
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Propagation Graph Modeling of Time-Varying Radio Channels
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018Co-Authors: Kristoffer Stern, Andreas Jonas Fuglsig, Kasper Ramsgaard-jensen, Troels PedersenAbstract:Radio Systems operating in time-varying propagation environments are exposed to rapid fading in the transfer function due to multi-path effects. In general propagation environments, where recursive scattering may occur, modeling and simulating the channel is challenging. In this contribution, we model the channel as a time-varying propagation graph induced by vertices representing transmitters, receivers and scatterers and edges representing the propagation conditions between the vertices. For time-varying Systems a closed form expression for the transfer matrix of the graph is not available and therefore we introduce an approximation by assuming the graph model to be an approximately Underspread System. We give a bound for the resulting approximation error. Finally, simulations illustrate how the model can be applied for simulation of a vehicle-to-vehicle tunnel scenario with time-varying delays and Doppler-shifts.
