New Results on Selection Diversity over Fading Channels

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dc.contributor.authorZhao, Qiangen
dc.contributor.committeechairAnnamalai, Annamalai Jr.en
dc.contributor.committeememberReed, Jeffrey H.en
dc.contributor.committeememberTranter, William H.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:32:13Zen
dc.date.adate2003-03-05en
dc.date.available2014-03-14T20:32:13Zen
dc.date.issued2003-01-08en
dc.date.rdate2004-03-05en
dc.date.sdate2003-02-27en
dc.description.abstractThis thesis develops a mathematical framework for analyzing the average bit error rate performance of five different selection diversity combining schemes over slow, frequency non-selective Rayleigh, Nakagami-m and Ricean fading channels. Aside from the classical selection diversity, generalized selection combining and the "maximum output" selection methods, two new selection rules based on choosing the branch providing the largest magnitude of log-likelihood ratio for binary phase shift keying signals (with and without phase compensation in the selection process) are also investigated. The proposed analytical framework is sufficiently general to study the effects of dissimilar fading parameter and unequal mean received signal strengths across the independent diversity paths. The effect of branch correlation on the performance of a dual-diversity system is also studied. The accuracies of our analytical expressions have been validated by extensive Monte-Carlo simulation runs. The proposed selection schemes based on the log-likelihood ratio are attractive in the design of low-complexity rake receivers for wideband CDMA and ultra wideband communication systems.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-02272003-101142en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02272003-101142/en
dc.identifier.urihttp://hdl.handle.net/10919/31363en
dc.publisherVirginia Techen
dc.relation.haspartthesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectlow-complexity receiver designen
dc.subjectmultipath fadingen
dc.subjectdiversity receptionen
dc.titleNew Results on Selection Diversity over Fading Channelsen
dc.typeThesisen
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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