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dc.contributor.advisorNguyen, Ha H.en_US
dc.creatorNguyen, Son Xuanen_US
dc.date.accessioned2005-12-16T14:59:39Zen_US
dc.date.accessioned2013-01-04T05:10:38Z
dc.date.available2005-12-19T08:00:00Zen_US
dc.date.available2013-01-04T05:10:38Z
dc.date.created2005-12en_US
dc.date.issued2005-12-08en_US
dc.date.submittedDecember 2005en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-12162005-145939en_US
dc.description.abstractRecently, the transmission of vector quantization (VQ) over a code-division multiple access (CDMA) channel has received a considerable attention in research community. The complexity of the optimal decoding for VQ in CDMA communications is prohibitive for implementation, especially for systems with a medium or large number of users. A suboptimal approach to VQ decoding over a CDMA channel, disturbed by additive white Gaussian noise (AWGN), was recently developed. Such a suboptimal decoder is built from a soft-output multiuser detector (MUD), a soft bit estimator and the optimal soft VQ decoders of individual users. Due to its lower complexity and good performance, such a decoding scheme is an attractive alternative to the complicated optimal decoder. It is necessary to extend this decoding scheme for a frequency-selective Rayleigh fading CDMA channel, a channel model typically seen in mobile wireless communications. This is precisely the objective of this thesis. Furthermore, the suboptimal decoders are obtained not only for binary phase shift keying (BPSK), but also for M-ary pulse amplitude modulation (M-PAM). This extension offers a flexible trade-off between spectrum efficiency and performance of the systems. In addition, two algorithms based on distance measure and reliability processing are introduced as other alternatives to the suboptimal decoder. Simulation results indicate that the suboptimal decoders studied in this thesis also performs very well over a frequency-selective Rayleigh fading CDMA channel.en_US
dc.language.isoen_USen_US
dc.subjectcode-division multiple accessen_US
dc.subjectcombined source and channel codingen_US
dc.subjectvector quantizationen_US
dc.subjectfrequency-selective fading channelen_US
dc.subjectmultiuser detectionen_US
dc.titleTransmission of vector quantization over a frequency-selective Rayleigh fading CDMA channelen_US
thesis.degree.departmentElectrical Engineeringen_US
thesis.degree.disciplineElectrical Engineeringen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberSaadat Mehr, Aryanen_US
dc.contributor.committeeMemberKarki, Rajeshen_US
dc.contributor.committeeMemberDodds, David E.en_US
dc.contributor.committeeMemberBoulfiza, Mohameden_US


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