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Concatenation of Space-Time Block Codes with ConvolutionalCodes

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dc.contributor.authorAli, Saajeden
dc.contributor.committeechairWoerner, Brian D.en
dc.contributor.committeememberKachroo, Pushkinen
dc.contributor.committeememberTranter, William H.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2011-08-06T14:45:44Zen
dc.date.adate2004-02-27en
dc.date.available2011-08-06T14:45:44Zen
dc.date.issued2004-02-12en
dc.date.rdate2007-02-27en
dc.date.sdate2004-02-18en
dc.description.abstractMultiple antennas help in combating the destructive effects of fading as well as improve the spectral efficiency of a communication system. Receive diversity techniques like maximal ratio receive combining have been popular means of introducing multiple antennas into communication systems. Space-time block codes present a way of introducing transmit diversity into the communication system with similar complexity and performance as maximal ratio receive combining. In this thesis we study the performance of space-time block codes in Rayleigh fading channel. In particular, the quasi-static assumption on the fading channel is removed to study how the space-time block coded system behaves in fast fading. In this context, the complexity versus performance trade-off for a space-time block coded receiver is studied. As a means to improve the performance of space-time block coded systems concatenation by convolutional codes is introduced. The improvement in the diversity order by the introduction of convolutional codes into the space-time block coded system is discussed. A general analytic expression for the error performance of a space-time block coded system is derived. This expression is utilized to obtain general expressions for the error performance of convolutionally concatenated space-time block coded systems utilizing both hard and soft decision decoding. Simulation results are presented and are compared with the analytical results.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.otheretd-02182004-133334en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02182004-133334en
dc.identifier.urihttp://hdl.handle.net/10919/9724en
dc.publisherVirginia Techen
dc.relation.haspartETD.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectRayleigh fadingen
dc.subjectconvolutional codesen
dc.subjecttransmit-diversityen
dc.subjectspace-time codesen
dc.titleConcatenation of Space-Time Block Codes with ConvolutionalCodesen
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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