Browsing by Author "Valenzuela González, José Luis"
Now showing items 1-20 of 25
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A low-cost tracking system for running race applications based on bluetooth low energy technology
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-03-20)
Article
Open AccessTiming points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. Athletes’ times are calculated via passive RFID tags and reader kits. Specifically, ... -
Alternativas en el desarrollo de aplicaciones para móviles
(ETSETB UPC, 2000)
Conference report
Open AccessCuando se alcanza la etapa de madurez del mercado GSM, como sería el caso de España, se impulsan nuevos servicios y aplicaciones para móviles, cuyo desarrollo puede fundamentarse en diversas tecnologías. En esta comunicación ... -
Analytical and experimental performance evaluation of BLE neighbor discovery process including non-idealities of real chipsets
(MDPI AG, 2017-03-03)
Article
Open AccessThe purpose of this paper is to evaluate from a real perspective the performance of Bluetooth Low Energy (BLE) as a technology that enables fast and reliable discovery of a large number of users/devices in a short period ... -
An experimental study of multi-radio platform coexistence in the 5 GHz band for railway applications
(Springer Verlag, 2011)
Conference report
Restricted access - publisher's policyThis paper studies the practical challenges that arise due to the coexistence of two wireless technologies, both operating in the license-exempt 5 GHz band. In particular, WiFi and WiMAX equipment have been used in the ... -
Anti-collision adaptations of BLE active scanning for dense IoT tracking applications
(Institute of Electrical and Electronics Engineers (IEEE), 2018-09-15)
Article
Open AccessBluetooth low energy (BLE) is one of most promising technologies to enable the Internet-of-Things (IoT) paradigm. The BLE neighbor discovery process (NDP) based on active scanning may be the core of multiple IoT applications ... -
Audit of a real Wi-Fi deployment to provide data, VoIP communications and an IIoT item location service
(Academy Publisher, 2017-10-17)
Article
Restricted access - publisher's policyAs the number of Access Points and stations sharing the unlicensed ISM (Industrial Scientific Medical) bands increases, interference diminishes the theoretical performance of 802.11 standard. This paper presents results ... -
Bluetooth Low Energy sensor networks for railway applications
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference lecture
Open AccessThis paper analyzes the viability of Bluetooth Low Energy (BLE) as the enabling technology in railway scenarios to allow sensor data transmission from ground to train. This proposal is based on using the broadcasting ... -
Comunicaciones via radio: analisis corporativo de las prestaciones técnicas de igualación con modelos de canal y medidas de canal experimentales
(Universitat Politècnica de València, 1993)
Conference report
Open Access -
Experimental study of Bluetooth, ZigBee and IEEE 802.15.4 technologies on board high-speed trains
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policyThis paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional ground-to-train communication. The presented ... -
Experimental study of bluetooth, ZigBee and IEEE 802.15.4 technologies on board high-speed trains
(2012)
Article
Restricted access - publisher's policyThis paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional ground-to-train communication. The ... -
Filtenna integration achieving ideal chebyshev return losses
(2014-04-01)
Article
Open AccessThis paper demonstrates that it is possible to find an ideal filter response (Chebyshev, Butterworth,..) considering the antenna as the last resonator of a filter under certain circumstances related with the antenna ... -
Help4Mood: a computational distributed system to support the treatment of patients with major depression
(2011)
Conference report
Restricted access - publisher's policyA closed loop approach supporting the control, communication and treatment management of patients with Major Depression is presented, based on a distributed system with three main components: a Personal Monitoring System, ... -
La evaluación en PBL: un caso práctico
(2008)
Conference report
Restricted access - publisher's policyLas ventajas de estructurar una asignatura, un conjunto o incluso todo un plan de estudios mediante Aprendizaje Basado en Proyectos (PBL) han sido ampliamente expuestas de forma teórica y práctica ... -
Multipolling and OFDMA Reservation Protocol for IEEE 802.11 Networks
(Institute of Electrical and Electronic Engineers, 2009)
Conference report
Open AccessThis paper presents an efficient multipolling scheme that improves the IEEE 802.11 MAC protocol efficiency and does not suffer from the hidden terminal problem or inefficient channel usage problems. To design an efficient ... -
On the feasibility of Bluetooth, Zigbee and IEEE 802.15.4 technologies on board high speed trains
(2011)
Conference report
Open AccessThis paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional land-to-train communication. The presented ... -
Opportunistic scheduling using an enhanced channel state information update scheme for WLAN systems with DQCA
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Conference lecture
Restricted access - publisher's policyThis paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional ground-to-train communication. The presented ... -
Performance of adaptive bayesian equalizers in outdoor environments
(IEEE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC., 1997)
Conference report
Open AccessOutdoor communications are affected by multipath propagation that imposes an upper limit on the system data rate and restricts possible applications. In order to overcome the degrading effect introduced by the channel, ... -
Performance of blind equalization with higher order statistics in indoor radio environments
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-05)
Article
Open AccessThis paper analyzes the performance of blind equalization using the complex cepstrum of third-order moments applied to 4-QAM time division multiple access (TDMA) indoor radio communication systems. In particular, we have ... -
Performance of Blind Equalization with Higher Order Statistics in Indoor Radio Environments
(1997-05)
Article
Open AccessThis paper analyzes the performance of blind equalization using the complex cepstrum of third-order moments applied to 4-QAM time division multiple access (TDMA) indoor radio communication systems. In particular, we have ... -
Principios de comunicaciones móviles
(Edicions UPC, 2003)
Book
Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC usersEn este libro se presentan los aspectos fundamentales que intervienen en los sistemas de comunicaciones móviles, al objeto de facilitar la comprensión de los principios de funcionamiento y los requerimientos tanto actuales ...
