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Klappentext Thoroughly revised and updated! the scond edition offers a fundamental and comprehensive treatment of how mobile systems operate in a variety of scenarios. This unrivalled approach concentrates on the properties of the radio channel! a vital and central feature that place fundamental limitations on the performance of radio systems.* Features two new chapters: 'Multipath Mitigation Techniques' and 'Radio System Planning'* Surveys various alternative methods of predicitng the mean signal strength and its variability! and discusses their applications* Introduces ray-tracing methods in connection with indoor propogation* Discusses multipath and its effects on narrowband and wideband systems* Describes channel sounders and reviews methods of hardware and software simulation* Examines man-made noise and interference! and discusses the resulting performance degradationBy equipping the reader with a thorough understanding of the physical processes that underlie the propogation of radio waves! this systematic approach will prove to be an authoritative and attractive text for researchers! systems designers! university academics and postgraduate students. Zusammenfassung Mobilfunksysteme funktionieren in den unterschiedlichsten Umgebungen - in abgelegenen ländlichen Gebieten mit unregelmäßiger Bebauung, in dicht bebauten Städten und Innenräumen, bei langsamer (Fußgänger) oder schneller Bewegung in Fahrzeugen. Dieser Band beschäftigt sich mit Methoden zur Vorhersage der mittleren Signalstärke und deren Veränderlichkeit in verschiedenen Situationen. Der Schwerpunkt liegt auf der Entwicklung des Verständnisses elementarer physikalischer Phänomene, die Funksignale beeinflussen können. (08/00) Inhaltsverzeichnis Preface.Preface to the First Edition.Introduction.Fundamentals of VHF and UHF Propagation.Propagation over Irregular Terrain.Propagation in Built-up Areas.Characterisation of Multipath Phenomena.Wideband Channel Characterisation.Other Mobile Radio Channels.Sounding! Sampling anf Simulation.Man-made Noise and Interference.Mitigation of Multipath Effects.Planning Radio Networks.Appendix A: Rayleigh Graph Paper and Receiver Noise Figure.Appendix B: Rayleigh Distribution (dB) and CNR in a Rayleigh Fading Environment.Appendix C: Deriving PDFs for Variables in Logarithmic Units.Appendix D: Effective Signal Envelope.Index. ...
