Blind equalization of multilevel turbo coded-continuous phase frequency shift keying over MIMO channels

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dc.contributor.authorOsman, Onur
dc.date.accessioned2020-11-21T15:53:45Z
dc.date.available2020-11-21T15:53:45Z
dc.date.issued2007en_US
dc.departmentİstanbul Ticaret Üniversitesien_US
dc.description.abstractIn this paper, multilevel turbo coded-continuous phase frequency shift keying (MLTC-CPFSK) is introduced and its bit error performance in multiple input multiple output (MIMO) fading channels are investigated considering a blind maximum likelihood channel estimation. Multilevel turbo coded signals with continuous phase modulation (CPM) provides low spectral occupancy and is suitable for power and bandwidth-limited channels. Besides, antenna diversity is one of the best method to combat with multipath fading effects. The performance of 2LTC for 4-ary CPFSK over AWGN, Rician (for Rician channel parameter K = 10 dB) and Rayleigh channels are given for 1Tx-1Rx, 2Tx-1Rx and 2Tx-2Rx antenna configurations. Channel capacities of 2LTC-4CPFSK signals are obtained as -5.26, -7.65 and -7.14 dB for 1Tx-1Rx, 2Tx-1Rx and 2Tx-2Rx antenna configurations, respectively. Baum-Welch (BW) algorithm is used to estimate the channel parameters. Bit error probabilities of 2 level turbo coded 4 CPFSK (2LTC-4CPFSK) are drawn in the cases of no channel state information (CSI), BW estimation, and perfect CSI. Approximately 0.1 and 0.75 dB gains in Es/N 0 are obtained using BW channel estimator for Rician and Rayleigh channels, respectively. Therefore, MLTC-CPFSK with BW channel estimator has excellent performance in MIMO fading channels. Copyright © 2006 John Wiley & Sons, Ltd.en_US
dc.identifier.doi10.1002/dac.860en_US
dc.identifier.endpage119en_US
dc.identifier.issn1074-5351
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-33846270018en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage103en_US
dc.identifier.urihttps://doi.org/10.1002/dac.860
dc.identifier.urihttps://hdl.handle.net/11467/3677
dc.identifier.volume20en_US
dc.identifier.wosWOS:000243552300007en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofInternational Journal of Communication Systemsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChannel capacityen_US
dc.subjectContinuous phase modulationen_US
dc.subjectMIMO channelsen_US
dc.subjectMultilevel codingen_US
dc.subjectTurbo codingblind channel estimationen_US
dc.titleBlind equalization of multilevel turbo coded-continuous phase frequency shift keying over MIMO channelsen_US
dc.typeArticleen_US

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