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Applications of on-board processing satellites in mobile communicationsChung, Lap Nin January 1992 (has links)
No description available.
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Performance optimisation of multiple access protocols for multiservice VSAT networksHadjitheodosiou, Michael H. January 1995 (has links)
No description available.
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Data security for multimedia communicationsAmornraksa, Thumrongrat January 1999 (has links)
No description available.
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Handover for high altitude platform station UMTSLim, Woo Lip January 2002 (has links)
No description available.
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Antennas for handheld satellite personal communicatorsAguis, Andreas-Albertos January 1999 (has links)
No description available.
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Performance of a new interference cancellation scheme for CDMA cellular mobile communicationsAl-Omrani, Omran A. A. January 1995 (has links)
No description available.
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Radiowave propagation over irregular terrain using the parabolic equation methodZelley, Christopher Andrew January 1996 (has links)
No description available.
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Diffraction modelling of mobile radio wave propagation in built-up areasSimon Reza, Simon Reza January 1991 (has links)
This thesis examines theoretical methods of modelling radio wave propagation in built-up areas, with particular application to mobile radio systems Theoretical approaches allow precise quantitative description of the environment in terms of parameters such as mean building heights and densities, in contrast to the ambiguous nature of more conventional empirical models. The models are constructed using both scalar and vector field analysis techniques. The vector analysis is accomplished using the Geometrical Theory of Diffraction to describe the detailed effects of building shape and positioning, particularly for short-range situations. Over longer ranges propagation can often be described in terms of multiple edge diffraction over building rooftops using a scalar field representation. This mechanism accounts well for measured field strength variations, but is time consuming to calculate accurately using standard methods. A rapid algorithm for calculating scalar diffraction over multiple building edges with arbitrary positioning is constructed. This model can be used for deterministic prediction of sector median field strengths including slow fading variations when appropriate building data exists. It is also applicable to terrain diffraction problems. For the case when only average building parameters are available a closed form solution to the problem of multiple diffraction over buildings of equal heights and spacings is derived. The solution is applicable to any antenna heights and so provides a rapid and efficient way to predict gross propagation characteristics. Both models are tested against measurements made in the UHF band and are found to yield good prediction accuracy.
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Universal current-mode analogue amplifiersToumazou, C. January 1986 (has links)
No description available.
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Code-division multiple-access (CDMA) techniques in optical fibre local area networksO'Farrell, Timothy January 1989 (has links)
No description available.
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