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dc.contributor.advisor Woerner, Brian D. en_US
dc.contributor.advisor Rappaport, Theodore S. en_US
dc.contributor.advisor Bostian, Charles W. en_US
dc.contributor.author Aliftiras, George en_US
dc.date.accessioned 2011-08-04T21:47:52Z
dc.date.available 2011-08-04T21:47:52Z
dc.date.issued 1996-07-01 en_US
dc.identifier.other etd-104722369631841 en_US
dc.identifier.uri http://hdl.handle.net/10919/9566
dc.description.abstract The communications industry is experiencing an explosion in the demand for personal communications services (PCS). Several digital technologies have been proposed to replace overburdened analog systems. One system that has gained increasing popularity in North America is a 1.25 MHz Code Division Multiple Access (CDMA) system (IS-95). In CDMA systems, multiple access interference limits the capacity of any system using conventional single user correlation or matched filter receivers. Previous research has shown that multiuser detection receivers that employ interference cancellation techniques can significantly improve the capacity of a CDMA system. This thesis studies two such structures: the successive interference cancellation scheme and the parallel interference cancellation scheme. These multiuser receivers are integrated into an IS-95 compatible receiver model which is simulated in software. This thesis develops simulation software that simulates IS-95 with conventional and multiuser receivers in multipath channels and when near-far conditions exist. Simulation results present the robustness of multiuser receivers to near-far in a practical system. In addition to multiuser implemenations, quantization effects from finite bit analog to digital converters (ADC) in CDMA systems will also be simulated. en_US
dc.format.medium ETD en_US
dc.publisher Virginia Tech en_US
dc.relation.haspart etd.pdf en_US
dc.relation.haspart aliftira.pdf en_US
dc.rights The authors of the theses and dissertations are the copyright owners. Virginia Tech's Digital Library and Archives has their permission to store and provide access to these works. en_US
dc.source.uri http://scholar.lib.vt.edu/theses/available/etd-104722369631841 en_US
dc.subject multiuser receiver en_US
dc.subject CDMA en_US
dc.subject interference cancellation en_US
dc.subject quantization en_US
dc.title Receiver Implementations for a CDMA Cellular System en_US
dc.type Thesis en_US
dc.contributor.department Electrical and Computer Engineering en_US
dc.description.degree MS en_US

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