Azpilicueta Fernández de las Heras, Leyre
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Azpilicueta Fernández de las Heras
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Leyre
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Ingeniería Eléctrica, Electrónica y de Comunicación
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ISC. Institute of Smart Cities
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Publication Open Access Performance analysis of IEEE 802.15.4 compliant wireless devices for heterogeneous indoor home automation environments(Hindawi, 2012) Nazábal Urriza, Juan Antonio; López Iturri, Peio; Azpilicueta Fernández de las Heras, Leyre; Falcone Lanas, Francisco; Fernández Valdivielso, Carlos; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Gobierno de Navarra / Nafarroako GobernuaThe influence of topology as well as morphology of complex indoor scenarios in the deployment of wireless sensor networks and wireless systems applied to home and building automation systems is analyzed. The existence of loss mechanisms such as material absorption (walls, furniture, etc.) and strong multipath components as well as the increase in the number of wireless sensors within indoor scenarios increases the relevance in the configuration of the heterogeneous wireless systems. Simulation results by means of empirical-based models are compared with an in-house 3D ray launching code as well as measurement results from wireless sensor networks illustrate the strong influence of the indoor scenario in the overall performance. The use of adequate radioplanning strategies lead to optimal wireless network deployments in terms of capacity, quality of service, and reduced power consumption.Publication Open Access Analysis and description of HOLTIN service provision for AECG monitoring in complex indoor environments(MDPI, 2013) Led Ramos, Santiago; Azpilicueta Fernández de las Heras, Leyre; Aguirre Gallego, Erik; Martínez de Espronceda Cámara, Miguel; Serrano Arriezu, Luis Javier; Falcone Lanas, Francisco; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta ElektronikoaIn this work, a novel ambulatory ECG monitoring device developed in-house called HOLTIN is analyzed when operating in complex indoor scenarios. The HOLTIN system is described, from the technological platform level to its functional model. In addition, by using in-house 3D ray launching simulation code, the wireless channel behavior, which enables ubiquitous operation, is performed. The effect of human body presence is taken into account by a novel simplified model embedded within the 3D Ray Launching code. Simulation as well as measurement results are presented, showing good agreement. These results may aid in the adequate deployment of this novel device to automate conventional medical processes, increasing the coverage radius and optimizing energy consumption.Publication Open Access Characterization and consideration of topological impact of wireless propagation in a commercial aircraft environment [wireless corner](IEEE, 2013) Rajo-Iglesias, Eva; Aguirre Gallego, Erik; López Iturri, Peio; Azpilicueta Fernández de las Heras, Leyre; Arpón Díaz-Aldagalán, Javier; Falcone Lanas, Francisco; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta ElektronikoaWireless systems are gaining a relevant role for multiple communication tasks within commercial aircrafts. In this work, wireless propagation in an indoor commercial airplane cabin will be analyzed. The impact of indoor elements, such as passenger seats, luggage compartments and a dual deck structure will be considered, with the aid of in-house implemented 3D ray launching code. Multipath propagation plays a relevant role, given by the time domain characteristics obtained by spatially dependent power delay profiles and delay spread. The use of deterministic techniques in order to consider the inherent complexity of the airplane cabin can aid in wireless system planning in order to increase overall system capacity whilst reducing power consumption.