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Performance evaluation of directional antennas in ZigBee networks under NLOS propagation conditions

2022Journal article Open access
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dc.contributor.authorAzevedo, Joaquim Amândio
dc.contributor.authorSantos, Filipe
dc.date.accessioned2022-07-20T09:06:59Z
dc.date.available2022-07-20T09:06:59Z
dc.date.issued2022
dc.description.abstractMany authors suggest directional antennas to enhance the transmission performance of ZigBee networks. For line-of-sight propagation, directional antennas can extend the transmission range or reduce the transmit power. Directional antennas may also reduce interference between networks operating in the same frequency channel. However, these antennas may not perform similarly under non-line-of-sight propagation conditions. This work presents a study with ZigBee modules comparing the performance of a directional antenna with an omnidirectional one. The measurements were conducted on a university campus for different propagation outdoor environ ments. A deconvolution technique was applied to estimate the received signal as a function of the azimuth angle. The results demonstrated that the received power followed the gain difference between antennas only for paths with low attenuation. Considering the same Effective Isotropic Radiated Power (EIRP), the system with directional antennas started to lose packets at the same distance as the omnidirectional antennas. The directional antenna did not allow the increase in the link range compared to the omnidirectional antenna. The power consumption was also measured for different transmit power levels of the ZigBee radio. The study showed that the control circuits of directional antennas typically consume more power than omnidirectional antennas operating at a higher transmit power level.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAzevedo, J. A., & Santos, F. E. (2022). Performance evaluation of directional antennas in ZigBee networks under NLOS propagation conditions. Electronics, 11(13), 2032.pt_PT
dc.identifier.doi10.3390/electronics11132032pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4430
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationResearch Centre for Mathematics and Applications
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRadio wave propagationpt_PT
dc.subjectChannel measurementspt_PT
dc.subjectDirectional antennaspt_PT
dc.subjectWireless sensor networkspt_PT
dc.subjectDeconvolution techniquept_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titlePerformance evaluation of directional antennas in ZigBee networks under NLOS propagation conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleResearch Centre for Mathematics and Applications
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04674%2F2020/PT
oaire.citation.issue13pt_PT
oaire.citation.startPage2032pt_PT
oaire.citation.titleElectronicspt_PT
oaire.citation.volume11pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAzevedo
person.familyNameSantos
person.givenNameJoaquim
person.givenNameFilipe
person.identifier1622144
person.identifier.ciencia-idD417-D5FC-FAC3
person.identifier.ciencia-id4213-2D7F-7828
person.identifier.orcid0000-0002-9060-7476
person.identifier.orcid0000-0002-8026-1416
person.identifier.ridN-4211-2013
person.identifier.scopus-author-id9243995600
person.identifier.scopus-author-id24830654300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication10ffd9e4-5072-4bec-bd1a-36897559a054
relation.isAuthorOfPublication.latestForDiscovery10ffd9e4-5072-4bec-bd1a-36897559a054
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