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.
The growing preponderance of light emitting diodes (LEDs) for lighting has motivated research into their dual use for visible light communication (VLC) and navigation. VLC extracts a bit sequence from a series of photodetector scans. Among this data is an LED ID that ensures the reliable data association in navigation and data communication. Recovering the LED data and ID requires the accurate prediction...
In Visible Light Communication (VLC) each LED's on-off status can be recovered only after its projected position in each measurement frame is determined. Finding the LED projection is not straightforward since: 1) Clutter and noise corrupt the measurements; 2) When the LED is turned off, its position cannot be extracted by evaluating the intensity value of each pixel. Herein, a new method based on...
The growth of light emitting diodes (LED's) for illumination enables new approaches both for communication and navigation. One of the challenges when LED's are used in the navigation systems is how to extract and capitalize effectively on the encoded LED ID. A single photo detector (PD) provides the simplest hardware approach and could communicate with LED's at a very high data rate, but only offers...
LEDs have many advantages compared with the conventional lamps. Therefore LEDs are expected to be the next generation of lamps that will be widely installed to replace conventional lamps. Due to their rapid response times, LED's can be modulated at very high-speeds, which allows the possibility of simultaneously providing communication while illuminating. Considering these facts, a system can be designed...
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.