Azpilicueta Fernández de las Heras, LeyreFalcone Lanas, FranciscoJanaswamy, Ramakrishna2024-01-122024-01-122017Azpilicueta-Fernández de las Heras, L., Falcone-Lanas, F., Janaswamy R. (2017) A Hybrid Ray Launching-Diffusion Equation Approach for Propagation Prediction in Complex Indoor Environments. IEEE Antennas and Wireless Propagation Letters, 16, 214-217. https://doi.org/10.1109/LAWP.2016.2570126.1536-122510.1109/LAWP.2016.2570126https://academica-e.unavarra.es/handle/2454/47029A novel and efficient deterministic approach to model radio wave propagation channels in complex indoor environments improving prediction accuracy is proposed. This technique combines a 3-D Ray Launching algorithm based on Geometrical Optics with a Diffusion Equation method based on the equation of transfer. A comparison between the Geometrical Optics only approach and the new method considering the Diffusion Equation has been presented for studying indoor radio wave propagation. The Geometrical Optics-Diffusion Equation method achieves better agreement with measurements, while resulting in high computational efficiency, with approximately 40% savings in simulation time.application/pdfeng© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.3D ray launchingDiffusionScatteringRF environment modelingRadio channel simulationinfo:eu-repo/semantics/article2024-01-12info:eu-repo/semantics/openAccess