Deterministic Approach for Fast Simulations of Indoor Radio Wave Propagation

Jean-Marie Gorce 1 Jaffrès-Runser Katia 1 Guillaume De La Roche 1
1 ARES - Architectures of networks of services
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
Abstract : The multiresolution frequency domain parflow (MR-FDPF) approach is applied to radio wave propagation in indoor environments. This method allows for a better understanding of indoor propagation and hence greatly assists the development of WiFi-like network planning tools. The efficiency of such wireless design tools is strongly impacted by the quality of the coverage predictions which have to be estimated with a limited computational load. The usual approaches are based either on an empirical modeling relying on measurement campaigns or on geometrical optics leading to ray-tracing. While the former approach suffers from a lack of accuracy, the later one needs to balance accuracy with computational load requirements. The new approach proposed herein is based on a finite difference formalism, i.e., the transmission line matrix (TLM). Once the problem is developed in the frequency domain, the linear system thus obtained is solved in two steps: a pre-processing step which consists of an adaptive MR (multigrid) pre-conditioning and a propagation step. The first step computes a MR data structure represented as a binary tree. In the second step the coverage of a point source is obtained by up-and-down propagating through the binary tree. This approach provides an exact solution for the linear system whilst significantly reducing the computational complexity when compared with the time domain approach
Type de document :
Article dans une revue
IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2007, 55 (3), pp.938-948. 〈10.1109/TAP.2007.891811〉
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https://hal.inria.fr/inria-00404836
Contributeur : Jean-Marie Gorce <>
Soumis le : vendredi 17 juillet 2009 - 11:26:04
Dernière modification le : samedi 27 octobre 2018 - 01:20:29

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Jean-Marie Gorce, Jaffrès-Runser Katia, Guillaume De La Roche. Deterministic Approach for Fast Simulations of Indoor Radio Wave Propagation. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2007, 55 (3), pp.938-948. 〈10.1109/TAP.2007.891811〉. 〈inria-00404836〉

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