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Ítem Using 3D game engines and GPU for ray launching based channel modeling in indoor(Institute of Electrical and Electronics Engineers Inc., 2014-08-23) Giménez, Jordi JoanThis paper investigates the use of a full 3D ray-launching system based on Game Engine and GPU for the prediction of channel parameters in indoor. We explore the behavior of the materials and the possible influence of objects external to the room where measurements were performed. We explore the modeling of indoor channel for Digital TV frequencies and analyze the behavior of material on such low frequencies and how the frequencies affect the constitutive parameters of materials in the scenario. Because of the environment used for experimentation, the number of rays is very high and the number of interactions is higher than usual. We show results of the ray tracing model compared with measurements of delay spread at 594MHz in a meeting roomÍtem Using 3-D video game technology in channel modeling(Institute of Electrical and Electronics Engineers Inc., 2014-01-01) Salcedo Londoño, SebastianWe present here a paper on the potential use of game engines and graphic technologies for 3-D ray-based technologies used to simulate multipath channels. Our approach harnesses the power of video game development engines to provide an urban 3-D ray-based model for exploration and analysis of multipath channels for a wide frequency range in different complex outdoor and indoor scenarios. Game technologies offer a variety of options for exploiting the capabilities of graphical processing units and provide high performance in computing time with accurate results for channel modeling in current and future wireless technologies. We show the usefulness of this approach using our 3-D ray-based system in different applications.Ítem Using game engines for wideband channel estimation parameters in Andean cities(IEEE, 2010-04-16) Guevara, DinaelThis paper shows the results obtained with a new raytracing method using an open source game engine and high performance graphic cards for the estimation of path loss and parameters of wide-band channel with high accuracy, for both low or high base-station in some specific outdoor urban Andean scenario as is the Cost 2100 Cali reference scenario. We use the algorithms and techniques developed by the game community together with graphics hardware accelerators for parameters estimation in time and frequency for wide-band channels. We use a 3D model dynamically obtained from raster digital elevation model (DEM) with information about constitutive parameters of materials and compare it with measurements, obtaining a good fit.Ítem Work in progress - Serious 3D game for mobile networks planning(IEEE, 2010-10-30) Madriñán, PatriciaSerious games is an emerging technology growing in importance for specialized training, taking advantage of 3D games and game engines in order to improve the realistic experience of users. The concept of a serious game combines the concept of computer games used for recreational purposes with specific goals like training specialized personnel and is part of the concept of blended learning. The idea of a serious game for radio planning requires some level of abstraction and a combination between visual designers and engineers in order to maintain accurate concepts about radio and a good "feeling" from the gamer or user side. In this paper we expose the development of a serious game for Telecommunications planning training, which uses open source tools and real data from Digital Terrain Maps. We combine some innovative ideas about propagation models, 3D modeling of digital terrain, game engines and a traditional radio planning tooÍtem Transmisión de contenidos 3D sobre televisión digital (DVB)(Universidad Icesi, 2013-04-01) Navarro Cadavid, Andrés; Carlos Andredy, ArdilaDuring 2019, all transmission of analogical TV signals in Colombia will cease, favoring the new Digital Terrestrial Television [DTT] format. By then is to be expected that operators and audience had fully adopted this new technology, so its advantages and benefits could be fully exploited. After though examination and study, Colombian government has adopted the European standard DVB-T2 (Digital Video Broadcast - Terrestrial V.2), considering it the most capable to satisfy the local requirements and expectations. Several aspects and services of this standard are still being toughly discussed, 3D content broadcast is one of them, so those who possess appropriate devices, could enjoy high definition stereoscopic video, just as it can be seen in a 3D or IMAX movie theater. This paper explores planned or already developed solutions to this challenge. It runs over the available academic and commercial information, as it explains the basic principles and techniques that make this technology possible in the first place.Ítem Open Source 3D Game Engines For Serious Games Modeling(InTech, 2012-03-07) Navarro Cadavid, AndrésIn this chapter we will review some tools and open source Game Engines used for modeling of real scenarios in serious games for training. One of the typical uses of serious games (3D serious games) is specialized training in dangerous tasks or when the training is quite expensive. However, typical games use artificial scenarios, created by artists and created according to the restrictions imposed by the Game engine used. In our experience, some tasks require the use of a real scenario like a city, forest area, etc, and most of this information is available as Digital Terrain Models in Geographic Information Systems (GIS). The problem here is that GIS formats are not compatible with 3D formats used in Game engines. Then we have to solve the problem of convert the GIS format to a 3D format supported by the Game Engine.