Simulation of Adaptive Array Algorithms for CDMA Systems

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dc.contributor.authorRong, Zhigangen
dc.contributor.committeechairRappaport, Theodore S.en
dc.contributor.committeememberWoerner, Brian D.en
dc.contributor.committeememberReed, Jeffrey H.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:51:16Zen
dc.date.adate1996-09-05en
dc.date.available2014-03-14T20:51:16Zen
dc.date.issued1996-09-05en
dc.date.rdate1996-09-05en
dc.date.sdate1998-07-21en
dc.description.abstractThe increasing demand for mobile communication services without a corresponding increase in RF spectrum allocation motivates the need for new techniques to improve spectrum utilization. The CDMA and adaptive antenna array are two approaches that shows real promise for increasing spectrum efficiency. In this research, we investigate the performance of different blind adaptive array algorithms in the CDMA systems. Two novel algorithms, least-squares despread respread multitarget array (LS-DRMTA) and least-squares despread respread multitarget constant modulus algorithm (LS-DRMTCMA), are developed, and a MATLAB simulation testbed is created to compare the performance of these two novel algorithms with those of the multitarget least-squares constant modulus algorithm (MT-LSCMA) and multitarget steepest-descent decision-directed (MT-SDDD) algorithm. It is shown from the simulation results that these two novel algorithms can outperform the other algorithms in all the test situations (e.g., AWGN channel, timing offset case, frequency offset case, and multipath environment). It is also shown that these two algorithms have less complexity and can converge faster than the other algorithms.en
dc.description.degreeMaster of Scienceen
dc.format.extentxvi, 127 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-3225151289642551en
dc.identifier.otheretd-09182008-063401en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-3225151289642551/en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09182008-063401/en
dc.identifier.urihttp://hdl.handle.net/10919/36611en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartZhigangRong.pdfen
dc.relation.isformatofOCLC# 35950366en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectadaptive antennasen
dc.subjectadaptive algorithmen
dc.subjectCDMAen
dc.subject.lccLD5655.V855 1996.R664en
dc.titleSimulation of Adaptive Array Algorithms for CDMA Systemsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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