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.
A data ferry enables communication in sparse sensor networks by combining physical movement with wireless relaying of data. Optimizing an unmanned aircraft's motion and communication link scheduling, however, requires knowledge of the communication environments through which it moves. Aspects of the radio frequency environment can be opportunistically learned through the process of communicating with...
This paper assesses an online method for testing the plausibility of a transferred Gaussian process (GP) communication model in a new environment based on a minimal number of signal measurements. The transferred GP is constructed by combining hyperparameters learned in the original environment with signal measurements collected by an unmanned aircraft (UA) in the new goal environment. The GP's performance...
This paper presents transfer learning algorithms for adapting the radio-frequency (RF) propagation model to changing environments. RF variations are modeled using a Gaussian process (GP) whose hyperparameters capture how the propagation of communication signals varies spatially and temporally. These characteristics of the environment and radio hardware are transferred from one task to another by reusing...
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.