Show simple item record

dc.contributor.authorRené, Játiva A.
dc.contributor.authorValdiviezo, Santiago
dc.contributor.authorEspinosa, Andy
dc.contributor.authorVidal Manzano, José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationRené, J., Valdiviezo, S., Espinosa, A., Vidal, J. A practical approach for NLOS mitigation in location-aware networks. A: IEEE Ecuador Technical Chapters Meeting. "2017 IEEE Second Ecuador Technical Chapters Meeting (ETCM 2017): Salinas, Ecuador: 16-20 October 2017". Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-6.
dc.description.abstractThis paper introduces a practical two-stage approach to achieve the mitigation of the Non Line Of Sight condition by using space-time diversity in timing-based mobile subscribers positioning systems. The first stage performs a coarse detection of the first (Line Of Sight) arrival, certainly attenuated due to the propagation channel, by performing a serial search over an observation window. Several GLRT and LMPT detectors have been evaluated in order not to miss the first arrival. Once the window where the LOS component lies has been properly detected, high resolution timing estimation is provided as a second stage. Two methods are considered for this work: Minimum Variance (MV) and Normalized Minimum Variance (NMV) estimation. A suitable channel model has been used to evaluate both approaches in terms of SNR and delay spread. These two methods have been compared for different configurations, and their operational characteristics have been obtained. Finally, these timing-error characteristics have been plugged to a link-level simulation platform to obtain their accuracy figures within a Weighted Linear Least Squares (WLLS) positioning system.
dc.format.extent6 p.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshWireless communication systems
dc.subject.otherAntenna arrays
dc.subject.otherGLRT detector
dc.subject.otherNLOS mitigation
dc.subject.otherTDOA based positioning systems
dc.subject.otherWireless sensor networks
dc.subject.otherAntenna arrays
dc.subject.otherChannel capacity
dc.subject.otherRadio communication
dc.subject.otherSignal to noise ratio
dc.subject.otherGLRT detector
dc.subject.otherLinear least squares
dc.subject.otherLink-level simulations
dc.subject.otherNlos mitigations
dc.subject.otherOperational characteristics
dc.subject.otherPositioning system
dc.subject.otherPropagation channels
dc.subject.otherSpace-time diversity
dc.subject.otherWireless sensor networks
dc.titleA practical approach for NLOS mitigation in location-aware networks
dc.typeConference report
dc.subject.lemacComunicació sense fil, Sistemes de
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorRené, J., Valdiviezo, S., Espinosa, A., Vidal, J.
upcommons.citation.contributorIEEE Ecuador Technical Chapters Meeting
upcommons.citation.publicationName2017 IEEE Second Ecuador Technical Chapters Meeting (ETCM 2017): Salinas, Ecuador: 16-20 October 2017

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder