Propagation measurements and models for wireless communications channels
TLDR
The authors describe the type of signals that occur in various environments and the modeling of the propagation parameters, which are divided into outdoor environments, indoor environments, and radio penetration from outdoor to indoor environments.Abstract:
The authors describe the type of signals that occur in various environments and the modeling of the propagation parameters. Models are essentially of two classes. The first class consists of parametric statistical models that on average describe the phenomenon within a given error. They are simple to use, but relatively coarse. In the last few years a second class of environment-specific models has been introduced. These models are of a more deterministic nature, characterizing a specific street, building, etc. They are necessarily more time consuming to use, but are also more revealing concerning physical details and hopefully more accurate. Some key parameters and the measurement of them are discussed and then the different wireless environments are treated. The latter topic is divided into outdoor environments, indoor environments, and radio penetration from outdoor to indoor environments. >read more
Citations
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Journal ArticleDOI
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Proceedings ArticleDOI
Minimum energy mobile wireless networks
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References
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A Statistical Model for Indoor Multipath Propagation
TL;DR: The results of indoor multipath propagation measurements using 10 ns, 1.5 GHz, radarlike pulses are presented for a medium-size office building, and a simple statistical multipath model of the indoor radio channel appears to be extendable to other buildings.
Journal ArticleDOI
Empirical formula for propagation loss in land mobile radio services
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Journal ArticleDOI
914 MHz path loss prediction models for indoor wireless communications in multifloored buildings
TL;DR: In this article, the authors developed site-specific models based on the number of floors, partitions, and concrete walls between the transmitter and receiver, and provided simple prediction rules which relate signal strength to the log of distance.
Journal ArticleDOI
A theoretical model of UHF propagation in urban environments
J. Walfisch,Henry L. Bertoni +1 more
TL;DR: In this paper, the authors developed a model in which the rows or blocks of buildings are viewed as diffracting cylinders lying on the earth, and the propagation process reduces to multiple forward diffraction past a series of screens.