Time-asymmetric and subcarrier-specific pulse shaping in ofdm-based waveforms

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dc.authorid0000-0001-9474-7372
dc.contributor.authorGüvenkaya, Ertu?rul
dc.contributor.authorBala, Erdem
dc.contributor.authorYang, Rui
dc.contributor.authorArslan, Hüseyin
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:56:20Z
dc.date.available10.07.201910:49:13
dc.date.available2019-07-10T19:56:20Z
dc.date.issued2015
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü
dc.descriptionWOS: 000365016700014
dc.description.abstractIn orthogonal frequency-division multiplexing (OFDM) systems, suppressing the out-of-band (OOB) emission with pulse shaping comes with a price. The expense emerges in designing the transition between consecutive symbols. The price can be either the reduction of spectral efficiency (SE) with symbol extension for better transition or the introduction of intersymbol and intercarrier interference (ISI and ICI) due to reduced cyclic prefix (CP) size. In this paper, we propose a time-asymmetric and per-subcarrier (per-SC) pulse-shaping method to minimize the introduced interference without sacrificing SE and OOB performances. Although time-asymmetric pulse reduces the interference due to shortened CP by exploiting the asymmetry in channel delay profile, it causes spectral growth. Thus, the time asymmetry of the pulse-shaping function is gradually increased for the inner SCs that have wider spectral room to the OOB region. A generalized Kaiser window with adjustable time asymmetry is introduced to the provided framework. Theoretical and simulation results showed that the proposed technique achieves superior BER performance while achieving the same level of OOB suppression of pulse shaping and SE of plain OFDM.
dc.description.sponsorshipInterDigital Communicationsen_US
dc.description.sponsorshipThis work was supported by InterDigital Communications Inc. The review of this paper was coordinated by Prof. S.-H. Leung.en_US
dc.identifier.citationGüvenkaya, E., Bala, E., Yang, R. ve Arslan, H. (2015). Time-asymmetric and subcarrier-specific pulse shaping in ofdm-based waveforms. IEEE Transactions on Vehicular Technology, 64(11), 5070-5082. https://dx.doi.org/10.1109/TVT.2014.2380356
dc.identifier.doi10.1109/TVT.2014.2380356
dc.identifier.endpage5082
dc.identifier.issn0018-9545
dc.identifier.issn1939-9359
dc.identifier.issue11
dc.identifier.scopusqualityQ1
dc.identifier.startpage5070
dc.identifier.urihttps://dx.doi.org/10.1109/TVT.2014.2380356
dc.identifier.urihttps://hdl.handle.net/20.500.12511/2671
dc.identifier.volume64
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectAsymmetric Pulse Shaping
dc.subjectGeneralized Kaiser Window
dc.subjectMultipath Delay Spread
dc.subjectOut-of-Band (OOB) Emission
dc.titleTime-asymmetric and subcarrier-specific pulse shaping in ofdm-based waveforms
dc.typeArticle

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