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Generalization Of Widely Linear Filtering Concepts For Equalization And Interference Suppression In PAM/QAM Systems

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Generalization Of Widely Linear Filtering Concepts For Equalization And Interference Suppression In PAM/QAM Systems

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dc.contributor.author Kuchi, Kiran Kumar en_US
dc.date.accessioned 2007-08-23T01:56:00Z
dc.date.available 2007-08-23T01:56:00Z
dc.date.issued 2007-08-23T01:56:00Z
dc.date.submitted May 2006 en_US
dc.identifier.other DISS-1263 en_US
dc.identifier.uri http://hdl.handle.net/10106/71
dc.description.abstract In PAM/QAM transmission systems, standard Minimum Mean Square Error (MMSE) linear (LE) or Decision Feedback Equalization (DFE) equalization methods are often used to suppress the detrimental effects inter-symbol and/or co-channel interference (ISI/CCI) effects of the channel. In this thesis we show the benefits of a new signal processing concept called Widely Linear (WL) filtering for equalization applications in wireless systems. In particular, we introduce generalized WL MMSE/MMSE-DFE equalization structures for both PAM systems that use real constellations and QAM (that use complex modulation alphabets) with multiple antennas and multiple co-channel interferers. In this thesis we first show that WL equalizers offer lower noise enhancement and better performance than conventional equalizers for PAM systems with ISI. In CCI limited systems, we show that WL methods offer a significantly higher IC gain especially in the presence of non-circular interference (e.g. PAM-type CCI). Our results indicate that the proposed concepts can be applied to enhance performance of existing/emerging cellular type systems with a small increase in system complexity. en_US
dc.description.sponsorship Prabhu, Vasant en_US
dc.language.iso EN en_US
dc.publisher Electrical Engineering en_US
dc.title Generalization Of Widely Linear Filtering Concepts For Equalization And Interference Suppression In PAM/QAM Systems en_US
dc.type Ph.D. en_US
dc.contributor.committeeChair Prabhu, Vasant en_US
dc.degree.department Electrical Engineering en_US
dc.degree.discipline Electrical Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level doctoral en_US
dc.degree.name Ph.D. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=287
dc.identifier.externalLinkDescription Link to Research Profiles

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