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.
In this paper, we analyze data from a large mobile phone provider in Europe, pertaining to time series of aggregate communication volume Ai,j(t) > 0 between cells i and j, for all pairs of cells in a city over a month. We develop a methodology for predicting the future (in particular whether two cells will talk to each other Ai,j(t) > 0) based on past activity. Our data set is sparse, with 80%...
This work experimentally demonstrates RF source location estimation error on the order of 50 m, with received signal strength (RSS) measurements, from a network of smartphone users, within 800 m (or more) from the source. This work incorporates careful modeling of the time-varying source transmission power, source antenna directionality (even with a simple 4-parameter model) and different path loss...
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.