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dc.contributor.authorMostafa, Raqibulen_US
dc.date.accessioned2014-03-14T20:11:08Z
dc.date.available2014-03-14T20:11:08Z
dc.date.issued2003-04-25en_US
dc.identifier.otheretd-04282003-000635en_US
dc.identifier.urihttp://hdl.handle.net/10919/27397
dc.description.abstractSmart antenna is a potential performance enhancement tool in a communications link that can be used at either end (transmitter or receiver) of the link in the form of beamforming or diversity operation. While receive smart antenna techniques and operations have matured over the years, transmit smart antenna is relatively a new concept that has seen its growth over the past few years. Both these smart antenna operations have been traditionally designed for base station applications. But with the advent of high-speed processors, transmit smart antenna can also be feasible at a small wireless terminal (SWT). This dissertation studied the feasibility of using smart antenna at a SWT. Both smart transmit and receive antennas are studied, including multiple input and multiple output (MIMO) systems, however the emphasis is placed on transmit smart antennas. The study includes algorithm developments and performance evaluations in both flat fading and frequency selective channels. Practical issues, i.e., latency and amount of feedback, related to transmit smart antenna operation are discussed. Various channel measurements are presented to assess the performance of a transmit smart antenna in a real propagation environment. These include vector channel measurements for narrowband and wideband signals, channel reciprocity, and effect of antenna element spacing on diversity performance. Real-time demonstrations of transmit smart antenna have been performed and presented, and, the applicability of the proposed techniques in the Third Generation standards and wireless local area networks (WLAN) is discussed. Receive beamforming with a small number of antenna elements (which is usually the case for a SWT) is analyzed in an interference-limited environment.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartRaqib_dissertation.pdfen_US
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMIMOen_US
dc.subjectTransmit diversityen_US
dc.subjectsmall wireless terminalen_US
dc.subjectvector channel measurementsen_US
dc.titleFeasibility of Smart Antennas for the Small Wireless Terminalsen_US
dc.typeDissertationen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
dc.contributor.committeechairReed, Jeffrey Hughen_US
dc.contributor.committeememberAnnamalai, Annamalai Jr.en_US
dc.contributor.committeememberSherali, Hanif D.en_US
dc.contributor.committeememberTranter, William H.en_US
dc.contributor.committeememberStutzman, Warren L.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04282003-000635/en_US
dc.date.sdate2003-04-28en_US
dc.date.rdate2004-04-30
dc.date.adate2003-04-30en_US


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