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Abstract
Ray-tracing tools allow for deterministic simulation of the channel impulse response. Studies show that these tools work well when the impulse response consists only of a few distinct components. However, measurements of the channel impulse response in indoor environments show a diffuse tail. This diffuse tail is difficult to include in ray-tracing due to the computational complexity.
We propose a hybrid model to include deterministic components and the diffuse tail by combining ray-tracing with a propagation graph. The recursive structure of the propagation graph allows for a computationally efficient calculation of the channel transfer function considering infinitely many components. We use ray-tracing and the theory of room electromagnetics to obtain the parameter settings for the propagation graph. Thus the proposed hybrid model does not require new or additional parameters in comparison to ray-tracing. Simulation results show good agreement with measurements with respect to the inclusion of the diffuse tail in both the delay power spectrum and the azimuth delay power spectrum.
We propose a hybrid model to include deterministic components and the diffuse tail by combining ray-tracing with a propagation graph. The recursive structure of the propagation graph allows for a computationally efficient calculation of the channel transfer function considering infinitely many components. We use ray-tracing and the theory of room electromagnetics to obtain the parameter settings for the propagation graph. Thus the proposed hybrid model does not require new or additional parameters in comparison to ray-tracing. Simulation results show good agreement with measurements with respect to the inclusion of the diffuse tail in both the delay power spectrum and the azimuth delay power spectrum.
Original language | English |
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Journal | I E E E Transactions on Antennas and Propagation |
Volume | 64 |
Issue number | 9 |
Pages (from-to) | 4036-4048 |
Number of pages | 13 |
ISSN | 0018-926X |
DOIs | |
Publication status | Published - 1 Sept 2016 |
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Dive into the research topics of 'Hybrid Model For Reverberant Indoor Radio Channels Using Rays and Graphs'. Together they form a unique fingerprint.Projects
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NEWCOM#: Network of Excellence in Wireless COMmunications # (NEWCOM#)
Fleury, B. H.
01/11/2012 → 31/10/2015
Project: Research