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.
This article describes a measurement campaign performed by a real-time UWB MIMO channel sounder and an analysis of measured date aimed at localisation applications in the automotive scenario. Measurements were done in the 3.5 GHz -10.5 GHz frequency band in different antenna constellations and propagation environments. Basic statistical analyses offer better insight into the measured radio channel...
In order to design wideband mobile communication systems, we must analyze the multi-path propagation characteristics more accurately. The distribution of received power in mobile communication systems is well known to follow a Nakagami-Rice distribution with the key parameter being the K-factor. When the K-factor is set to 0, the Nakagami-Rice distribution equals a Rayleigh distribution. Wideband...
Blind localization and tracking of mobile terminals in urban scenarios is an important requirement for offering new location based services, handling emergency cases of non-subscribed users, public safety etc. In this context, we propose a track-before-detect scheme, taking explicit advantage of multipath propagation in an urban terrain by using a priori information about the known locations of the...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
This paper investigates the effective gain of antennas in indoor channels. A metric called instantaneous effective gain is proposed, and a multiple-cluster 3D channel model is used to facilitate the proposed antenna effective gain. In the multiple-cluster channel model, Laplacian and double exponential distribution are utilized to model azimuth and elevation signal power distribution respectively,...
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.