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.
One of the most well-known clustering methods for wireless sensor network is, no doubt, the so-called low energy adaptive clustering hierarchy (LEACH) because it is simple and easy to implement. Although LEACH tries to provide a fair selection mechanism by randomly selecting a number of sensors as the cluster-heads, it does not take into account the distribution of sensors, the main reason that LEACH...
A "keywords cloud" learning interest/difficult reminding system based on learners' video watching logs and subtitles is proposed for promoting self-paced MOOC learning. By identifying the hot video segments (via video seek event counts) and weighting the keywords of hot video segments, we are able to establish the "keywords cloud" of each learning topic. This feature is valuable...
Wireless sensor network (WSN) is one of the most promising technologies in the 21st century. Applying WSN to life or production environment is becoming increasingly common. Incorporating the environment-sensing capability of wireless sensor networks into mobile monitoring systems can provide convenient control of the greenhouses anywhere, anytime. This paper designs and implements a real-time mobile...
Fast identification for large number of tags is required in many RFID applications. To improve the identification efficiency, current tag reading protocols try to schedule the identification process with fewer collisions, since the reader cannot identify the transmission tag IDs when multibit collision happens. This paper proposes a novel tag reading protocol called the multibit identification (MBI)...
We consider a Decoded-and-Forward (DF) cooperative relaying network without a direct link. We investigate the outage probability (OP) of cooperation systems with either a DF scheme or a Selective DF (S-DF) scheme when relay channels experience statistically different Rayleigh fading. In the case of the DF system, an upper and lower bound of the OP are established to show the asymptotic performance...
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.