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A Multi-Ray Analysis of LOS V2V Links for Multiple Antennas with Ground Reflection

2020Conference object Restricted access
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dc.contributor.authorFarzamiyan, Amir Hossein
dc.contributor.authorGutiérrez Gaitán, Miguel
dc.contributor.authorSamano-Robles, Ramiro
dc.date.accessioned2020-11-04T14:44:16Z
dc.date.embargo2120
dc.date.issued2020
dc.description.abstractThis paper presents a vehicle-to-vehicle (V2V) geometric multi-ray tracing model for an improved line-of-sight (LOS) estimation. The model is especially suited for distributed antenna transceivers in the presence of ground reflections. The multiple antennas are assumed to be spaced regularly in horizontal and vertical directions over contiguous vehicles. The main focus of our study is the ability of the multiple antenna system to counteract or exploit, respectively, the destructive or constructive interference of multiple rays in the LOS channel component. This work is a complement to existing V2V channel models by providing more details on how ground reflections affect the LOS channel. The analysis is initially framed in the context of MIMO (multiple-input multiple-output) systems to investigate general aspects such as capacity limits and singular value distribution. The work then focuses on a scheme with single symbol repetition across the transmit antennas and two different strategies for signal combining at the receiver: maximum-ratio and equal-gain combining (MRC and EGC, respectively). These solutions are compared with a full diversity solution as well as with the information theoretical limits. An adaptive antenna selection mechanism is finally proposed that outperforms all other solutions. The paper shows both vertical and horizontal polarization results with corrected complex Fresnel reflection coefficients for lossy materials. Moreover, it is shown that multiple antenna design in V2V systems can be useful to counteract the destructive interference created by multiple rays on the LOS channel component.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.23919/AEIT50178.2020.9241147pt_PT
dc.identifier.isbn978-8-8872-3747-4
dc.identifier.urihttp://hdl.handle.net/10400.22/16426
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInstitute of Electrical and Electronics Engineerspt_PT
dc.relation5GSDN, ref. POCI-01-0145-FEDER032218pt_PT
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/9241147pt_PT
dc.subjectMIMOpt_PT
dc.subjectV2Vpt_PT
dc.subjectLine of sightpt_PT
dc.subjectTwo ray modelpt_PT
dc.titleA Multi-Ray Analysis of LOS V2V Links for Multiple Antennas with Ground Reflectionpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceOnlinept_PT
oaire.citation.endPage6pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleProceedings of the 112th AEIT International Annual Conference (AEIT 2020)pt_PT
person.familyNameFarzamiyan
person.familyNameGutiérrez Gaitán
person.familyNameSamano-Robles
person.givenNameAmir Hossein
person.givenNameMiguel
person.givenNameRamiro
person.identifierXIAfmagAAAAJ
person.identifier.ciencia-id7D1A-B7B8-1436
person.identifier.ciencia-id0717-6659-467C
person.identifier.orcid0000-0002-9091-5751
person.identifier.orcid0000-0002-3307-8731
person.identifier.orcid0000-0002-1054-1818
person.identifier.scopus-author-id57192172325
person.identifier.scopus-author-id23477889200
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication80c0db9a-db6e-42ce-a71f-b0bd1bd13fb9
relation.isAuthorOfPublication3512370f-381d-42ec-95e1-6ddd459c8169
relation.isAuthorOfPublicationac51ae9d-002d-4803-b9af-5fbbb162832b
relation.isAuthorOfPublication.latestForDiscovery80c0db9a-db6e-42ce-a71f-b0bd1bd13fb9

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