Search results for "11ac"

showing 4 items of 4 documents

Multivariate statistical technique over QoS variables to analyze video quality metrics on IEEE 802.11ac networks

2017

[EN] We present the results from a measurementbasedperformance evaluation of wireless networks basedon IEEE 802.11ac standard in an indoor environment, withthe aim to analyze their performance under high definitionstreaming video applications. We focus our study on analyzingthe highest performance of these standards using off-theshelfequipment as well as the behavior of Quality of Servicevariables and how they affect to the video quality. Thus, wehave analyzed and measured these variables and have applieda multivariate statistical technique, called Factor Analysis,and finally discuss their behavior.

Computer sciencebusiness.industryWireless networkQuality of servicemedia_common.quotation_subjectVideo quality metricFactor analysiVideo qualitycomputer.software_genreQuality of experienceMultivariate statistical techniqueQuality of serviceIEEE 802.11acQuality (business)TelematicsQuality of experienceTelematicsData miningbusinessFocus (optics)computerComputer networkmedia_commonProceedings XIII Jornadas de Ingenieria Telematica - JITEL2017
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SHARP: Environment and Person Independent Activity Recognition with Commodity IEEE 802.11 Access Points

2022

In this article we present SHARP, an original approach for obtaining human activity recognition (HAR) through the use of commercial IEEE 802.11 (Wi-Fi) devices. SHARP grants the possibility to discern the activities of different persons, across different time-spans and environments. To achieve this, we devise a new technique to clean and process the channel frequency response (CFR) phase of the Wi-Fi channel, obtaining an estimate of the Doppler shift at a radio monitor device. The Doppler shift reveals the presence of moving scatterers in the environment, while not being affected by (environment-specific) static objects. SHARP is trained on data collected as a person performs seven differe…

Signal Processing (eess.SP)Networking and Internet Architecture (cs.NI)FOS: Computer and information scienceshuman activity recognitionMobile computingComputer Science - Machine LearningCFRMonitoringSensorsComputer Networks and CommunicationsIEEE 802.11acneural networksWi-Fi sensingMachine Learning (cs.LG)Computer Science - Networking and Internet ArchitectureCSIActivity recognitionFOS: Electrical engineering electronic engineering information engineeringPerformance evaluationFeature extractionWireless fidelityElectrical and Electronic EngineeringElectrical Engineering and Systems Science - Signal Processingcontactless indoor monitoringSoftware
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CCDC 262066: Experimental Crystal Structure Determination

2006

Related Article: G.Stajer, A.E.Szabo, G.Turos, P.Sohar, R.Sillanpaa|2005|Eur.J.Org.Chem.|2005|4154|doi:10.1002/ejoc.200500155

Space GroupCrystallography811-Methano-12344a7ac8c11c11ac13a-decahydroindolo[17a-a][31]benzoxazine-612-dioneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 262064: Experimental Crystal Structure Determination

2006

Related Article: G.Stajer, A.E.Szabo, G.Turos, P.Sohar, R.Sillanpaa|2005|Eur.J.Org.Chem.|2005|4154|doi:10.1002/ejoc.200500155

Space GroupCrystallography811-Methano-12344a7ac8t11t11ac13a-decahydroindolo[17a-a][31]benzoxazine-612-dioneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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