2008
DOI: 10.1109/vetecs.2008.73
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Abstract: Computer simulations are a common procedure for assessing the performance of new algorithms. To conduct a valid and accurate study, the models employed in such simulators need to be carefully selected. Regarding shadowing modeling, one-dimensional models are fairly commonplace in the literature. While simple and with low computational costs, these models can not produce correlated fading values for mobiles that are in nearby positions and, besides, do not include the cross-correlation effect. To overcome these… Show more

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Cited by 14 publications
(18 citation statements)
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“…It has previously been addressed [43], [57], [58] by slightly modifying particular correlation matrices so that they become feasible (specifically, positive semidefinite (psd) for lognormal shadowing). However, we prefer to address the problem at its root: let us use only such correlation models that will always produce psd correlation matrices, as suggested in [6], [45], and [56].…”
Section: A Motivationmentioning
confidence: 99%
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“…It has previously been addressed [43], [57], [58] by slightly modifying particular correlation matrices so that they become feasible (specifically, positive semidefinite (psd) for lognormal shadowing). However, we prefer to address the problem at its root: let us use only such correlation models that will always produce psd correlation matrices, as suggested in [6], [45], and [56].…”
Section: A Motivationmentioning
confidence: 99%
“…Saunders' model [73] has been used in [7], [43], [45], [57], and [95] (but watch for various transcription errors), i.e.,…”
Section: E More Elaborate (Nonseparable) Modelsmentioning
confidence: 99%
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“…Thus, a totally independent one-dimensional lognormal shadow fading fails to well represent the shadow fading for real systems and a two-dimensional (2D) shadow fading model is preferred. Extensive research has been conducted on how to accurately model the shadow fading, e.g., how to model the cross-correlation and spatial correlation existing in the realistic shadow fading [3,4,7] and how to include them into the 2D shadow fading models [8][9][10][11][12]. For instance, in [3], Saunders et al proposes a cross-correlation model for the shadow fading.…”
Section: Introductionmentioning
confidence: 99%
“…In [7], Gudmundson proposes a spatial correlation model for the shadow fading in mobile radio channels by measurement data fitting. This model now is widely accepted by many researchers and it is almost regarded as a standard spatial correlation model to be included into the proposed 2D shadow fading models [8][9][10][11][12]. However, Gudmundson's spatial correlation model is proposed mainly for large to moderate cell sizes.…”
Section: Introductionmentioning
confidence: 99%