EM-Based MAP channel estimation and data detection for downlink MCC-CDMA systems

dc.contributor.authorDoğan, Hakan
dc.contributor.authorPanayırcı, Erdal
dc.contributor.authorÇırpan, Hakan Ali
dc.date.accessioned2019-06-27T08:06:34Z
dc.date.available2019-06-27T08:06:34Z
dc.date.issued2007
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractIn this work we propose a joint MAP channel estimation and data detection technique based on the Expectation Maximization (EM) method with paralel interference cancelation(PIC) for downlink multi-carrier (MC) code division multiple access (CDMA) systems in the presence of frequency selective channels. The EM algorithm derived estimates the complex channel parameters of each subcarriers iteratively and generates the soft information representing the data a posterior probabilities. The soft information is then employed in a PIC module to detect the symbols efficiently. Moreover the MAP-EM approach considers the channel variations as random processes and applies the Karhunen-Loeve (KL) orthogonal series expansion. The performance of the proposed approach are studied in terms of bit-error rate (BER) and mean square error (MSE). Throughout the simulations extensive comparisons with previous works in literature are performed showing that the new scheme can offer superior performance.en_US]
dc.identifier.citation2
dc.identifier.doi10.1109/WCNC.2007.48en_US
dc.identifier.isbn978-1-4244-0658-6
dc.identifier.issn1525-3511en_US
dc.identifier.issn1525-3511
dc.identifier.scopus2-s2.0-36349006324en_US
dc.identifier.scopusqualityN/A
dc.identifier.startpage227en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/1208
dc.identifier.wosWOS:000252337100043en_US
dc.identifier.wosqualityN/A
dc.institutionauthorPanayırcı, Erdalen_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleEM-Based MAP channel estimation and data detection for downlink MCC-CDMA systemsen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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