Cp-less ofdm with alignment signals for enhancing spectral efficiency, reducing latency, and improving phy security of 5g services

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dc.authorid0000-0001-9474-7372
dc.contributor.authorHamamreh, Jehad M.
dc.contributor.authorAnkaralı, Zekeriyya Esat
dc.contributor.authorArslan, Hüseyin
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:56:15Z
dc.date.available10.07.201910:49:13
dc.date.available2019-07-10T19:56:15Z
dc.date.issued2018
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü
dc.descriptionWOS: 000452348000001
dc.description.abstractAlthough orthogonal frequency-division multiplexing (OFDM) is a widely accepted waveform in many standards and is expected to keep its dominance in future 5G systems with various types of parameterized waveforms, its performance in terms of spectral efficiency as well as transmission latency is usually degraded due to the excessive usage of cyclic prefix (CP). Particularly, in highly dispersive channels, CP rate might be very large in order to maintain the low-complex frequency-domain equalization. In this paper, we propose a novel method that can fit the low latency and high spectral efficiency requirements of future 5G wireless services by eliminating the need for inserting CP between successive OFDM symbols while keeping the whole detection process the same at the receiver side. In order to achieve that, we utilize specially designed alignment signals that can cancel the interference of one symbol on the other and add an additional signal component that makes the signal circularly convolved with the channel at the receiver side. Simulation results prove the superiority of the proposed scheme in terms of enhancing spectral and power efficiency, reducing latency, and improving physical-layer security against eavesdropping while using a low-complexity one-tap frequency-domain equalizer. These numerous, simultaneous, and desirable advantages have the potential to make the proposed technique a suitable fit for future 5G wireless services and applications including Internet of Things-based massive machine-type communication, ultra-reliable and low-latency communication, and enhanced mobile broadband.
dc.identifier.citationHamamreh, J. M., Ankaralı, Z. E. ve Arslan, H. (2018). Cp-less ofdm with alignment signals for enhancing spectral efficiency, reducing latency, and improving phy security of 5g services. IEEE Access, 6, 63649-63663. https://dx.doi.org/10.1109/ACCESS.2018.2877321
dc.identifier.doi10.1109/ACCESS.2018.2877321
dc.identifier.endpage63663
dc.identifier.issn2169-3536
dc.identifier.scopusqualityQ1
dc.identifier.startpage63649
dc.identifier.urihttps://dx.doi.org/10.1109/ACCESS.2018.2877321
dc.identifier.urihttps://hdl.handle.net/20.500.12511/2635
dc.identifier.volume6
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.ispartofIEEE Accessen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectOFDM
dc.subjectcyclic prefix (CP)
dc.subjectGuard Period
dc.subject5G
dc.subjectSpectral Efficiency
dc.subjectLatency
dc.subjectReliability
dc.subjectPhysical Layer (PHY) Security
dc.subjectIoT
dc.subjectmMTC
dc.subjectURLLC
dc.subjecteMBB
dc.subjectPAPR
dc.subjectOOBE
dc.subjectMIMO
dc.subjectComplexity
dc.titleCp-less ofdm with alignment signals for enhancing spectral efficiency, reducing latency, and improving phy security of 5g services
dc.typeArticle

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