Adaptive Digital Predistortion with Applications for LMDS Systems

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dc.contributor.authorJohnson, Daniel Ericen
dc.contributor.committeechairBostian, Charles W.en
dc.contributor.committeememberSweeney, Dennis G.en
dc.contributor.committeememberReed, Jeffrey H.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:44:57Zen
dc.date.adate2000-09-29en
dc.date.available2014-03-14T20:44:57Zen
dc.date.issued2000-08-25en
dc.date.rdate2001-09-29en
dc.date.sdate2000-09-08en
dc.description.abstractA limiting factor in the widespread deployment of LMDS systems is the limited distance of current systems. Rain attenuation and limited transmitter power are the primary causes of the limited distance. Adaptive digital predistortion is presented as a method of increasing effective transmitter power. A background on LMDS link design, non-linear amplification, and predistortion is presented to assist the reader. A developed simulation uses AM-AM and AM-PM characteristics obtained from laboratory measurements of a 28 GHz amplifier to determine the effect of several predistortion implementation options and to confirm the feasibility of the proposed architecture. The potential impact of this predistortion architecture on LMDS system design is considered. The presented multi-stage predistortion architecture is found to be capable of implementation at Msymbol/second rates utilizing a FPGA or custom IC and a moderate speed digital signal processor.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-09082000-23270013en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09082000-23270013/en
dc.identifier.urihttp://hdl.handle.net/10919/34964en
dc.publisherVirginia Techen
dc.relation.haspartdej-thesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectNonlinear Amplificationen
dc.subjectBroadbanden
dc.subjectMeasurementen
dc.subjectAM-PMen
dc.subjectAM-AMen
dc.subjectSimulationen
dc.titleAdaptive Digital Predistortion with Applications for LMDS Systemsen
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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