The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Communication systems operating in indoor environments and at frequencies from 60 GHz up to the THz range may suffer severely from dynamic human blockage. Previous studies have shown the influence of a single person on a single (static) link. In this paper, a model for the prediction of a time-variant scenario for a simple conference room with a group of persons is presented. The presented model is...
An analytical 3D ray-launching method using arbitrary polygonal shapes for wireless propagation prediction is introduced within this document. The algorithm is significantly advanced compared to other ray-launching techniques, since the actual ray-casting methodology is based on vertices of the geographical data and not on a brute-force manner which most often leads into irrelevant directions in space...
3D ray-optical propagation modelling for small cells on different floors can be considered as state-of-the-art technique. Nevertheless, it is restricted to buildings for which 3D building data is available. In order to allow coverage predictions for small cell networks with high density, we propose a novel method of heuristically creating artificial 3D building plans based on 2D building contours...
The accuracy of ray-optical propagation modeling heavily depends on the quality of the used input data. Accurate input data leads to accurate propagation predictions. One of the biggest drawbacks in the area of small cell propagation is the lack of 3D building information on large scales. Therefore, a novel method of heuristically creating artificial 3D building plans based on 2D building contours...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.