Publication detail

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

NISSEL, R. BLUMENSTEIN, J. RUPP, M.

Original Title

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

Type

conference paper

Language

English

Original Abstract

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

Keywords

FBMC-OQAM, MIMO, Walsh-Hadamard Coding, Multipath channels, Time-varying channels.

Authors

NISSEL, R.; BLUMENSTEIN, J.; RUPP, M.

Released

6. 7. 2017

Publisher

IEEE

Location

Sapporo, Japan

ISBN

978-1-5090-3009-5

Book

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

Pages from

1

Pages to

5

Pages count

5

URL

https://publik.tuwien.ac.at/files/publik_260156.pdf

BibTex

@inproceedings{BUT139572,
  author="Ronald {Nissel} and Jiří {Blumenstein} and Markus {Rupp}",
  title="Block Frequency Spreading: A Method for Low-Complexity MIMO in FBMC-OQAM",
  booktitle="18th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2017",
  year="2017",
  pages="1--5",
  publisher="IEEE",
  address="Sapporo, Japan",
  doi="10.1109/SPAWC.2017.8227812",
  isbn="978-1-5090-3009-5",
  url="https://publik.tuwien.ac.at/files/publik_260156.pdf"
}