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Spectrally-Precoded OFDM for 5G Wideband Operation in Fragmented sub-6GHz Spectrum
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0002-9225-8150
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0003-0413-4826
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
(English)Article in journal (Refereed) Submitted
Abstract [en]

We consider spectrally-precoded OFDM waveforms for 5G wideband transmission in sub-6GHz band. In this densely

packed spectrum, a low out-of-band (OOB) waveform is a critical 5G component to achieve the promised high spectral

efficiency. By precoding data symbols before OFDM modulation, it is possible to achieve extremely low out-of-band

emission with very sharp spectrum transition enabling an efficient and flexible usage of frequency resources. Spectrallyprecoded

OFDM shows promising results for reaching 5G targets in high-data rate enhanced mobile broadband and ultrareliable

low-latency communications use cases. Spectral precoding is particularly efficient for wideband transmission

enabling short-time transmission, which will often require flexible fragmented spectrum usage.

National Category
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-62023OAI: oai:DiVA.org:ltu-62023DiVA: diva2:1074596
Available from: 2017-02-15 Created: 2017-02-15 Last updated: 2017-12-08

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Mohamad, MedhatNilsson, Rickardvan de Beek, Jaap

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