Konstantinos Mammasis

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The well-known assumption of horizontal plane wave propagation is investigated and evidence suggests that elevation plays a crucial role in defining the spatial correlation between signals on adjacent antenna array elements. To augment previously published studies, an explicit relationship between the distribution of scatterers in three-dimensional (3D)(More)
In this paper, the problem of deriving the power angular scattering response (PASR) resulting from a Gaussian scatterer distribution is undertaken. Differently from previous work, the scatter cluster can be located arbitrarily in the vicinity of the mobile unit. Furthermore, for the considered scatter geometry we derive both the angular and distance(More)
Recently, the Third Generation Partnership standards bodies (3GPP/3GPP2) have defined a channel model for multiple input multiple output (MIMO) systems. This model is a 2D model where the propagating plane waves are assumed to arrive only from the azimuthal direction and does not include the elevation domain. As a result of this assumption the derived angle(More)
In this paper the long standing problem of a heavy tailed power azimuth spectrum and the associated scattering mechanism that triggers its observance is undertaken using the geometry-based stochastic approach that was initially developed in [1], and is further extended herein. More specifically, the unimodal power azimuth spectrum (PAS) and joint power(More)
In this paper, the angular power spectrum exhibited under a three-dimensional (3-D) Gaussian scattering distribution at fixed observation points in space is investigated. Typically, these correspond to the mobile and base units, respectively. Unlike other spatial channel models, the derived model accounts for the distance to each scatterer from the(More)
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