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Quasi-Cyclic Symbol Extensions for Shaping the OFDM Spectrum
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0003-1711-8606
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.ORCID iD: 0000-0001-8647-436x
2018 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 17, no 10, p. 7054-7066Article in journal (Refereed) Published
Abstract [en]

N-continuous orthogonal frequency division multiplexing (OFDM) is a promising solution to the outof- band (OOB) emission issue in OFDM systems where the Nth-order continuity between OFDM symbols leads to lower OOB emission than the plain OFDM, however, high self-interference in such systems is an obstacle. In this paper we propose a new class of quasi-cyclic symbol extensions which makes the OFDM system N- continuous. The new extension leads to low OOB emission while the additive interference is less than other N-continuous OFDM systems. Moreover, we propose a general analysis of the spectrum and interference that occurs in a linear precoded OFDM system. The framework is applicable to many N-continuous OFDM systems including our proposed method.

Place, publisher, year, edition, pages
IEEE, 2018. Vol. 17, no 10, p. 7054-7066
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-70580DOI: 10.1109/TWC.2018.2865566ISI: 000447047200048OAI: oai:DiVA.org:ltu-70580DiVA, id: diva2:1241715
Note

Validerad;2018;Nivå 2;2018-10-10 (inah)

Available from: 2018-08-24 Created: 2018-08-24 Last updated: 2018-12-11Bibliographically approved

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Taheri, TayebehNilsson, RickardBeek, Jaap van de

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