Millimeter Wave Vehicular Channel Emulation: A Framework for Balancing Complexity and Accuracy

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dc.contributor.authorBlazek, Thomascs
dc.contributor.authorZöchmann, Erichcs
dc.contributor.authorMecklenbräuker, Christophcs
dc.coverage.issue11cs
dc.coverage.volume18cs
dc.date.accessioned2020-08-04T11:00:44Z
dc.date.available2020-08-04T11:00:44Z
dc.date.issued2018-11-16cs
dc.description.abstractWe propose a general framework for the specification of a sparse representation of millimeter wave vehicular propagation channels and apply this to both synthetic data and real-world observations from channel sounding experiments. The proposed framework is based on the c-LASSO (complex Least Absolute Shrinkage and Selection Operator) which minimizes the mean squared error of the sparse representation for a given number of degrees of freedom. By choosing the number of degrees of freedom, we balance the numerical complexity of the representation in the channel emulation against its accuracy in terms of the mean squared error. A key ingredient is the choice of basis of the representation and we discuss two options: the Fourier basis and its projection onto a given subband. The results indicate that the subband-projected Fourier basis is a low-complexity choice with high fidelity for representing clustered channel impulse responses. Finally, a sequential estimator is formulated which enforces a consistent temporal evolution of the geometry of the interacting objects in the propagation environment. We demonstrate the performance of our approach using both synthetic data and measured 60 GHz vehicular channel traces.en
dc.formattextcs
dc.format.extent1-21cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSENSORS. 2018, vol. 18, issue 11, p. 1-21.en
dc.identifier.doi10.3390/s18113997cs
dc.identifier.issn1424-8220cs
dc.identifier.other153263cs
dc.identifier.urihttp://hdl.handle.net/11012/180468
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSENSORScs
dc.relation.urihttps://www.mdpi.com/1424-8220/18/11/3997cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1424-8220/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectV2X communicationsen
dc.subjectmmwaveen
dc.subjectchannel emulationen
dc.subjectAkaike information criterionen
dc.subjectmodel order estimationen
dc.subjectcluster channelsen
dc.titleMillimeter Wave Vehicular Channel Emulation: A Framework for Balancing Complexity and Accuracyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-153263en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:00:44en
sync.item.modts2020.08.04 12:45:21en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav radioelektronikycs
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