DC Field | Value | Language |
---|---|---|
dc.contributor.author | CHOI, JEONG HOON | - |
dc.contributor.author | KIM, JU BUM | - |
dc.contributor.author | CHO, JOON HO | - |
dc.contributor.author | Lehnert, James S. | - |
dc.date.accessioned | 2021-09-03T03:58:09Z | - |
dc.date.available | 2021-09-03T03:58:09Z | - |
dc.date.created | 2021-05-26 | - |
dc.date.issued | 2021-05 | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/106847 | - |
dc.description.abstract | In this paper, the Nyquist criteria for ordinary linear modulation are generalized to the discrete-Fourier transform-spread (DFT-spread) orthogonal frequency-division multiplexing (OFDM) of constellation-rotated PAM symbols. Unlike the conventional Nyquist criteria with a linear receiver, the new criteria are to remove intersymbol interference in the output of a widely-linear (WL) receiver. It is shown that not only the folded spectrum, but also the shifted and reverse-folded spectrum is crucial in the criteria, where the shift offset is determined by the rotation angle. As a design example, combinations of a constellation rotation angle and a square-root raised cosine pulse are proposed. It is shown that the proposed design can achieve better performance both in spectral efficiency and in peak-to-average power ratio than the conventional DFT-spread OFDM of pi/2-BPSK symbols. The optimal one-tap frequency-domain equalizer is also derived under the WL zero-forcing (ZF) constraint. It is shown that, when the rotation angle is properly chosen, the proposed one-tap WL-ZF equalizer significantly outperforms the one-tap linear ZF equalizer in output signal-to-noise ratio. The proposed equalizer also outperforms the conventional equalizer in error vector magnitude measured at the output of a nonlinear power amplifier. | - |
dc.language | English | - |
dc.publisher | Institute of Electrical and Electronics Engineers | - |
dc.relation.isPartOf | IEEE Transactions on Communications | - |
dc.title | Widely-Linear Nyquist Criteria for DFT-Spread OFDM of Constellation-Rotated PAM Symbols | - |
dc.type | Article | - |
dc.identifier.doi | 10.1109/TCOMM.2021.3056106 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | IEEE Transactions on Communications, v.69, no.5, pp.2909 - 2922 | - |
dc.identifier.wosid | 000652065300010 | - |
dc.citation.endPage | 2922 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2909 | - |
dc.citation.title | IEEE Transactions on Communications | - |
dc.citation.volume | 69 | - |
dc.contributor.affiliatedAuthor | CHOI, JEONG HOON | - |
dc.contributor.affiliatedAuthor | KIM, JU BUM | - |
dc.contributor.affiliatedAuthor | CHO, JOON HO | - |
dc.identifier.scopusid | 2-s2.0-85100707794 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Constellation rotation | - |
dc.subject.keywordAuthor | dFT-spread OFDM | - |
dc.subject.keywordAuthor | frequency-domain spectrum shaping | - |
dc.subject.keywordAuthor | nyquist criterion | - |
dc.subject.keywordAuthor | square-root raised cosine | - |
dc.subject.keywordAuthor | widely-linear zero-forcing equalizer | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
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