Foundations of a versatile personal digital cellular communication decision support system (VPDCCDSS-Pythia) applied to different digital cellular environments.
Item
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Title
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Foundations of a versatile personal digital cellular communication decision support system (VPDCCDSS-Pythia) applied to different digital cellular environments.
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Identifier
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AAI9304666
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identifier
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9304666
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Creator
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Galatianos, Anthony Athanassios.
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Contributor
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Adviser: Michael Anshel
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Date
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1992
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Language
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English
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Publisher
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City University of New York.
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Subject
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Computer Science
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Abstract
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Standard cellular engineering methods, which employ regular reuse geometry, are based on assumptions involving uniformly distributed traffic and a regular grid of cells. These assumptions, however, are rarely met in practice, as traffic is non-uniform, with different capacity-growth scenarios, varied terrain, and the unavailability of needed land for the new cell sites. For these reasons, standard cellular engineering has led to highly irregular cells. Furthermore, earlier studies have indicated that non-regular channel allocation could double the spectrum efficiency of regular reuse allocations with the same service quality (17).;Designing cellular systems and planning for their growth gives rise to many diverse questions regarding the allocation of channels to cells, the determination of cell capacity under different growth and technology-transition scenarios, the re-allocation of channels when cells are dualized or when omni-directional antennas are directionalized, and the system's capacity adaptation to time-varying traffic conditions (including the use of remotely-tunable radios for meeting the various traffic load requirements which differ from cell to cell).;Since many of these problems often arise with short notice but requiring immediate answers, it is desirable to have a computational tool of sufficient versatility to apply to different problems without the need for further development. In this dissertation, an extensive study of present and anticipated cellular concepts and infrastructures is presented. A tool has been designed and analyzed that can be used to solve many problems associated with channel allocation for different configurations of cells and a plan for the design and eventual development of a decision support system, Pythia, is given.
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Type
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dissertation
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Source
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PQT Legacy Restricted.xlsx
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degree
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Ph.D.