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 wireless sensor network is comprised of a large number of battery-limited sensor nodes. In a predefined period, sensor nodes get data and transmit data to BS by a fixed construction. In this paper, we introduce a scheme for selecting the construction to prolong the lifetime of wireless sensor network based on energy balance. Further, an optimal math model is proposed for calculating the energy cost...
A wireless sensor network is a self-organizing network which is composed of a large number of intelligent sensor nodes. The network topology is also changing with the residual energy of sensors. And the tree topology is an important and special one in sensor network. For reliability measure, it is important to find more reliable tree topology in the same class. In this paper, a new reliability measure...
This paper had done a crowd evacuation simulation based on a hierarchical environmental model. An environment modeling software had been implemented which can be used to construct an environment model consisted of geometric level, topological level, path level and cognitive level. The environment model can provide many supports for visual effect, sensing, path planning, decision-making, and interaction...
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.