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dc.contributor.authorLei, Yuen_US
dc.date.accessioned2014-03-14T20:30:21Z
dc.date.available2014-03-14T20:30:21Z
dc.date.issued2001-11-12en_US
dc.identifier.otheretd-01102002-170524en_US
dc.identifier.urihttp://hdl.handle.net/10919/30876
dc.description.abstractThird generation (3G) mobile communication systems will provide services supporting high-speed data network and multimedia applications in addition to voice applications. The Smart antenna technique is one of the leading technologies that helps to meet the requirement by such services to radio network capacity. Resource management schemes such as power control, handoff and channel reservation/assignment are also essential for providing the seamless services with high quality. Smart antenna techniques will help to enhance the capability of resource management through more efficient and flexible use of resources. In this thesis, adaptive array and switched beam antenna techniques are compared in terms of algorithm, performance, complexity and hardware requirements. Based on these comparisons, sub-optimal code gate algorithm are most likely the suitable algorithms for next generation code division multiple access (CDMA) systems due to its good performances, robustness, and low complexity. A multi-cell CDMA simulator is developed for investigating the gain from smart antenna techniques in both bit error rate (BER) performance improvement and enhancement to resource management schemes. Our study shows that smart antenna techniques can significantly improve the performance of the system and help to build more powerful and flexible resource management schemes. With eight array elements, the system capacity can be increased by a factor of four. Power control command rates can be reduced through the tradeoff with the interference reduction by smart antennas. Smart antennas will also reduce handover failure rates and further increase the system capacity by reducing the resources reserved for soft handover.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartthesis.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectWireless Communicationsen_US
dc.subjectResource Managementen_US
dc.subjectWideband CDMAen_US
dc.subjectSmart Antennaen_US
dc.subjectSimulationen_US
dc.titleResource Management with Smart Antenna in CDMA Systemsen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
dc.contributor.committeechairAnnamalai, Annamalai Jr.en_US
dc.contributor.committeememberDaSilva, Luiz A.en_US
dc.contributor.committeememberMili, Lamine M.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01102002-170524/en_US
dc.date.sdate2002-01-10en_US
dc.date.rdate2005-02-18
dc.date.adate2002-02-18en_US


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