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 the standard protocol IEEE 802.15.4 for Wireless Sensor Network (WSN), the moving nodes experience difficulty in maintaining the connectivity within the network because of the low range and low power. The nodes easily lose their synchronization and connectivity in the beacon-enabled mode when they move from one coordinator to another. The connectivity maintenance introduced in the standard protocol...
In mobile computing environments, a video encoder should be able to provide high quality of service, which is measured from two perspectives: first, the video quality at a given bit rate must be optimized; second, it should be able to efficiently utilize its power supply to prolong the battery operating time. In other words, it should be able to achieve low power consumption as well as lower video...
In the IEEE 802.15.4 medium access control (MAC) protocol for wireless sensor networks, a sensor node needs to associate with a coordinator before it starts sending or receiving data. The sensor node will mostly choose the nearest coordinator to associate with. However, this method is not suitable for a constantly moving sensor node because it will end up switching coordinators too often due to short...
Content-based multimedia retrieval over wireless networks is a challenging research problem. In this paper we focus on a generic client-server framework designed to perform aural and visual multimedia retrievals over wireless networks. The client is developed for Java enabled mobile devices where a user can initiate a content-based query process to retrieve similar multimedia items and the server...
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.