Casino, FranAzpilicueta Fernández de las Heras, LeyreLópez Iturri, PeioAguirre Gallego, ErikFalcone Lanas, FranciscoSolanas, Agustí2024-02-062024-02-062017Casino, F., Azpilicueta, L., Lopez-Iturri, P., Aguirre-Gallego, E., Falcone-Lanas, F. J., Solanas, A. (2017) Optimized wireless channel characterization in large complex environments by hybrid ray launching-collaborative filtering approach. IEEE Antennas and Wireless Propagation Letters, 16, 780-783. https://doi.org/10.1109/LAWP.2016.2604021.1536-122510.1109/LAWP.2016.2604021https://academica-e.unavarra.es/handle/2454/47355Simulation techniques based on deterministic methods such as Ray Tracing and Ray Launching, are widely used to perform radioplanning tasks. However, the quality of the simulations depends on the number of rays and the angular resolution. The computational cost of these simulations in High Definition prevents their use in complex environments and their Low Definition counterparts are used instead. In this article we propose a technique based on collaborative filtering to lessen the poor quality problems of Low Definition simulations. We show that our approach obtains results very similar to those of High Definition in much less time. Also, we compare our approach with other well-known techniques and we show that it performs better in terms of accuracy and precision. The use of combined deterministic/collaborative filtering techniques allows the estimation of radioplanning tasks in large, complex scenarios with a potentially large amount of transceivers.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 work3D ray launchingCollaborative filtering (CF)Optimized wireless channel characterization in large complex environments by hybrid ray launching-collaborative filtering approachinfo:eu-repo/semantics/article2024-02-06info:eu-repo/semantics/openAccess