Pilot Symbol Aided Channel Estimation for Spatial Modulation-OFDM Systems and its Performance Analysis with Different Types of Interpolations

dc.contributor.authorAcar, Yusuf
dc.contributor.authorDoğan, Hakan
dc.contributor.authorPanayırcı, Erdal
dc.date.accessioned2019-06-27T08:01:19Z
dc.date.available2019-06-27T08:01:19Z
dc.date.issued2017
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractSpatial modulation orthogonal frequency division multiplexing (SM-OFDM) system has been recently proposed as an alternative for multiple-input multiple-output (MIMO)-OFDM systems to increase spectral efficiency by keeping a low-complexity implementation. In the literature SM-OFDM systems assume a perfect channel state information (P-CSI) available at the receiver for coherent detection and the channel estimation problem is not considered. It is clear that the channel estimation is a critical issue on the performance of SM-OFDM systems. In this paper a frame structure where pilot symbols are typically interspersed with data symbols among the sub-carriers to aid the channel estimation is considered. Then the pilot symbol aided channel estimation (PSA-CE) technique with different interpolations is proposed for the SM-OFDM systems. It is shown that in the proposed PSA-CE equidistantly spaced pilot symbols allow to reconstruct the channel response by means of interpolation if the spacing of the pilots is sufficiently close to satisfy the sampling theorem. Linear nearest neighbor piecewise cubic Hermite and the low-pass interpolations are investigated to explore trade-off between complexity and performances. We show that the low pass interpolator yields better performance than the other interpolation techniques for selected cases such as higher order modulations. The results validate the potential of the proposed PSA-CE estimation applying to SM-OFDM systems.en_US]
dc.identifier.citation12
dc.identifier.doi10.1007/s11277-016-3687-9en_US
dc.identifier.endpage1404
dc.identifier.issn0929-6212en_US
dc.identifier.issn1572-834Xen_US
dc.identifier.issn0929-6212
dc.identifier.issn1572-834X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-84986274526en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage1387en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/343
dc.identifier.urihttps://doi.org/10.1007/s11277-016-3687-9
dc.identifier.volume94en_US
dc.identifier.wosWOS:000401758400060en_US
dc.identifier.wosqualityN/A
dc.institutionauthorPanayırcı, Erdalen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.journalWireless Personal Communicationsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMultiple-input multiple-output (MIMO)en_US
dc.subjectOrthogonal frequency division multiplexing (OFDM)en_US
dc.subjectSpatial modulation (SM)en_US
dc.subjectChannel estimationen_US
dc.subjectInterpolationen_US
dc.titlePilot Symbol Aided Channel Estimation for Spatial Modulation-OFDM Systems and its Performance Analysis with Different Types of Interpolationsen_US
dc.typeArticleen_US
dspace.entity.typePublication

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