Browsing by Author "Valenzuela González, José Luis"
Now showing items 1-20 of 39
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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 ... -
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 ... -
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 ... -
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 ... -
Bluetooth mesh analysis, issues, and challenges
(Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
Article
Open AccessBLE is a widely used short-range technology which has gained a relevant position inside the Internet-of-Things (IoT) paradigm development thanks to its simplicity, low-power consumption, low-cost and robustness. New ... -
BMADS: BLE mesh asynchronous dynamic scanning
(Institute of Electrical and Electronics Engineers (IEEE), 2021-02-15)
Article
Open AccessThe Bluetooth low-energy (BLE) mesh profile, currently standardized by the Bluetooth Special Interest Group (SIG), assumes that friend and relay nodes should be continuously scanning the channel ready to receive any incoming ... -
CA1-MN1: Examen FQ: primavera 2019
(Universitat Politècnica de Catalunya, 2019-06-18)
Exam
Restricted access to the UPC academic community -
CA1-MN1: Examen MQ: primavera 2019
(Universitat Politècnica de Catalunya, 2019-04-03)
Exam
Restricted access to the UPC academic community -
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 -
Examen final
(Universitat Politècnica de Catalunya, 2018-06-11)
Exam
Restricted access to the UPC academic community -
Examen final
(Universitat Politècnica de Catalunya, 2019-01-17)
Exam
Restricted access to the UPC academic community -
Examen final
(Universitat Politècnica de Catalunya, 2018-06-06)
Exam
Restricted access to the UPC academic community -
Examen MQ
(Universitat Politècnica de Catalunya, 2018-04-11)
Exam
Restricted access to the UPC academic community -
Examen MQ
(Universitat Politècnica de Catalunya, 2018-11-06)
Exam
Restricted access to the UPC academic community -
Examen MQ
(Universitat Politècnica de Catalunya, 2018-04-06)
Exam
Restricted access to the UPC academic community -
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 ... -
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 ...
