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Activity: An SDR-based prototype of spectrally precoded OFDM
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
2016 (English)Conference paper (Other (popular science, discussion, etc.))
Abstract [en]

OFDM scheme possesses high OOB emission which degrades the spectral efficiency of OFDM systems. Poor spectral efficiency limits the validity of OFDM as a candidate for 5G. Spectrally precoded OFDM is a recent approach that treats the OFDM signal to suppress the out of band (OOB) emission. Although the theoretical results of spectral precoding show very efficient OOB emission suppression (more than 50 dB reduction compared to plain OFDM), practically, hardware impairments limit its performance.We, at Luleå University of Technology, examine the practicality of the suggested approach and show for the first time through this demonstration that despite the hardware impairments, implemented spectral precoded OFDM has OOB emission tens of decibels less than that of plain OFDM. We set up and examine a communication link through which we approve that communication systems are less vulnerable to interference coming from spectrally precoded OFDM signals than to interference coming from plain OFDM signals.

Place, publisher, year, edition, pages
2016.
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-41474Local ID: 4fbd7b9b-26f7-41b6-a225-964d504474beOAI: oai:DiVA.org:ltu-41474DiVA: diva2:1014442
Conference
EAI International Conference on Cognitive Radio Oriented Wireless Networks : 30/05/2016 - 01/06/2016
Note
Startdatum: 30/05/2016; Slutdatum: 01/06/2016; Roll: Annat; Typ: Föreläsning / muntligt bidragAvailable from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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