Vehicular Channel Characterization in Orthogonal Time-Frequency Space

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Vehicular Channel Characterization in Orthogonal Time-Frequency Space

Popis výsledku v původním jazyce

Orthogonal time-frequency space (OTFS) modulation has been suggested as modulation scheme for the fifth generation of wireless communications and beyond. The scheme is promoted as especially well apt to tackle future challenges of high mobility, millimeter wave communications (mmWave) and massive Multiple-Input Multiple-Output (MIMO). In this paper we investigate the observed channel properties in the OTFS domain from mmWave vehicular crossroads measurements. To assess the sparsity of the resulting delay-Doppler channel, we use Akaike's information criteria, which consider the trade-off between mean squared error and overfitting. Our analysis shows that in the OTFS domain, the observed channel is in deed sparse, with an optimal number of 16 channel taps out of up to 1344 possible. Our analysis furthermore shows that this property of observing sparse channels is caused mainly by the high number of orthogonal symbols resulting from modulation in two domains.

Název v anglickém jazyce

Vehicular Channel Characterization in Orthogonal Time-Frequency Space

Popis výsledku anglicky

Orthogonal time-frequency space (OTFS) modulation has been suggested as modulation scheme for the fifth generation of wireless communications and beyond. The scheme is promoted as especially well apt to tackle future challenges of high mobility, millimeter wave communications (mmWave) and massive Multiple-Input Multiple-Output (MIMO). In this paper we investigate the observed channel properties in the OTFS domain from mmWave vehicular crossroads measurements. To assess the sparsity of the resulting delay-Doppler channel, we use Akaike's information criteria, which consider the trade-off between mean squared error and overfitting. Our analysis shows that in the OTFS domain, the observed channel is in deed sparse, with an optimal number of 16 channel taps out of up to 1344 possible. Our analysis furthermore shows that this property of observing sparse channels is caused mainly by the high number of orthogonal symbols resulting from modulation in two domains.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20202 - Communication engineering and systems

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 2019 IEEE International Conference on Communications Workshops (ICC Workshops)

ISBN

978-1-7281-2373-8

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Shanghai

Datum konání akce

20. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000484917800035