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dc.contributor.authorSenol, H
dc.contributor.authorPanayirci, E
dc.contributor.authorCirpan, HA
dc.date.accessioned2021-03-03T17:39:49Z
dc.date.available2021-03-03T17:39:49Z
dc.date.issued2006
dc.identifier.citationSenol H., Cirpan H., Panayirci E., "Linear expansions for frequency selective channels in OFDM", AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.60, sa.3, ss.224-234, 2006
dc.identifier.issn1434-8411
dc.identifier.otherav_4acfda37-00e2-42ed-9ca9-c3e0951be625
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/53729
dc.identifier.urihttps://doi.org/10.1016/j.aeue.2005.03.008
dc.description.abstractModeling the frequency selective fading channels as random processes, we employ a linear expansion based on the Karhumen-Loeve (KL) series representation involving a complete set of orthogonal deterministic vectors with a corresponding uncorrelated random coefficients. Focusing on OFDM transmissions through frequency selective fading, this paper pursues a computationally efficient, pilot-aided linear minimum mean square error (MMSE) uncorrelated KL series expansion coefficients estimation algorithm. Based on such an expansion, no matrix inversion is required in the proposed MMSE estimator. Moreover, truncation in the linear expansion of channel is achieved by exploiting the optimal truncation property of the KL expansion resulting in a smaller computational load on the estimation algorithm. The performance of the proposed approach is studied through analytical and experimental results. We first exploit the performance of the MMSE channel estimator based on the evaluation of minimum Bayesian MSE. We also provide performance analysis results studying the influence of the effect of SNR and correlation mismatch on the estimator performance. Simulation results confirm our theoretical results and illustrate that the proposed algorithm is capable of tracking fast fading and improving performance. (c) 2005 Elsevier GmbH. All rights reserved.
dc.language.isoeng
dc.subjectMühendislik ve Teknoloji
dc.subjectSinyal İşleme
dc.subjectBilgi Sistemleri, Haberleşme ve Kontrol Mühendisliği
dc.subjectTELEKOMÜNİKASYON
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMühendislik
dc.subjectMÜHENDİSLİK, ELEKTRİK VE ELEKTRONİK
dc.titleLinear expansions for frequency selective channels in OFDM
dc.typeMakale
dc.relation.journalAEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
dc.contributor.department, ,
dc.identifier.volume60
dc.identifier.issue3
dc.identifier.startpage224
dc.identifier.endpage234
dc.contributor.firstauthorID177391


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