FDTD Modeling of Indoor Propagation with Frequency Averaging

Stanislav Stefanov Zhekov*, Ondrej Franek, Gert Frølund Pedersen

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Abstract

The presence of numerical dispersion and anisotropy in the finite-difference time-domain (FDTD) method leads to an error in the phase of the numerical waves which in turn degrades the accuracy of the simulated electric field (E-field). In this paper, the error in the mean magnitude of the numerical E-field obtained by averaging over frequency is investigated. The central frequency, at which the study is performed, is 3 GHz and different averaging bandwidths are tested to check the accuracy of representing the large-scale fading. By comparing with measurements, it is found that before averaging the maximum error in the numerical results is of 64% for empty room and 57% for office scenario. However, the maximum error in the mean magnitude of the FDTD E-field, when averaging over bandwidth of 200 MHz is employed, is of 36% and 45% for empty room and office scenario, respectively.
OriginalsprogEngelsk
Titel2019 13th European Conference on Antennas and Propagation (EuCAP)
Antal sider5
ForlagIEEE (Institute of Electrical and Electronics Engineers)
Publikationsdatomar. 2019
Artikelnummer8739928
ISBN (Trykt)978-1-5386-8127-5
ISBN (Elektronisk)978-88-907018-8-7
StatusUdgivet - mar. 2019
BegivenhedThe 13th European Conference on Antennas and Propagation - Krakow, Krakow, Polen
Varighed: 31 mar. 20195 apr. 2019
https://www.eucap2019.org/

Konference

KonferenceThe 13th European Conference on Antennas and Propagation
LokationKrakow
Land/OmrådePolen
ByKrakow
Periode31/03/201905/04/2019
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