Block Frequency Spreading: A Method for Low-Complexity MIMO in FBMC-OQAM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124690" target="_blank" >RIV/00216305:26220/17:PU124690 - isvavai.cz</a>

Výsledek na webu

<a href="https://publik.tuwien.ac.at/files/publik_260156.pdf" target="_blank" >https://publik.tuwien.ac.at/files/publik_260156.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/SPAWC.2017.8227812" target="_blank" >10.1109/SPAWC.2017.8227812</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Block Frequency Spreading: A Method for Low-Complexity MIMO in FBMC-OQAM

Popis výsledku v původním jazyce

Filter Bank Multi-Carrier (FBMC) offers better spectral properties than conventional Orthogonal Frequency Division Multiplexing (OFDM). However, the lack of Multiple- Input and Multiple-Output (MIMO) compatibility is one of its biggest obstacles. By spreading symbols in frequency, we are able to restore complex orthogonality in FBMC, so that all MIMO methods known in OFDM can be straightforwardly applied. The spreading process itself has low computational complexity because it is based on a Fast-Walsh-Hadamard transform, thus completely free of multiplications. Orthogonality only holds if the channel is approximately frequency flat within the spreading length. We thus suggest the usage of frequency blocks which are separated by a guard subcarrier. We also investigate the effect of a doubly selective channel on our block frequency spreading approach. Finally, MIMO simulations validate the applicabilit

Název v anglickém jazyce

Block Frequency Spreading: A Method for Low-Complexity MIMO in FBMC-OQAM

Popis výsledku anglicky

Filter Bank Multi-Carrier (FBMC) offers better spectral properties than conventional Orthogonal Frequency Division Multiplexing (OFDM). However, the lack of Multiple- Input and Multiple-Output (MIMO) compatibility is one of its biggest obstacles. By spreading symbols in frequency, we are able to restore complex orthogonality in FBMC, so that all MIMO methods known in OFDM can be straightforwardly applied. The spreading process itself has low computational complexity because it is based on a Fast-Walsh-Hadamard transform, thus completely free of multiplications. Orthogonality only holds if the channel is approximately frequency flat within the spreading length. We thus suggest the usage of frequency blocks which are separated by a guard subcarrier. We also investigate the effect of a doubly selective channel on our block frequency spreading approach. Finally, MIMO simulations validate the applicabilit

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

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

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

18th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2017

ISBN

978-1-5090-3009-5

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

IEEE

Místo vydání

Sapporo, Japan

Místo konání akce

Sapporo

Datum konání akce

3. 7. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000427595900176