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.
For very low power, high bandwidth applications, free space optical sensor networks (FSOSN) have shown potential. They promise increasing node functionality, lower energy consumption, lower cost and smaller sizes. However, the new optical communication architecture yields new routing challenges. The objective of our paper is to introduce novel routing protocols for FSOSN that take into account the...
This paper describes algorithms for creation and maintenance of a spanning tree connecting nodes to the central observer (root) in wireless sensor networks. The tree is dynamically reconfigured to route around failed nodes, while minimizing energy consumption. Reconfiguration uses only local information, so that the algorithm scales to large sensor networks. The performance of the algorithm is compared...
Clustering provides an effective way for prolonging the lifetime of a wireless sensor network. Current clustering algorithms usually utilize two techniques, selecting cluster heads with more residual energy and rotating cluster heads periodically, to distribute the energy consumption among nodes in each cluster and extend the network lifetime. However, they rarely consider the hot spots problem in...
Volunteer forwarding, as an emerging routing idea for large scale, location-aware wireless sensor networks, recently has attracted a significant amount of research attention. However, several critical research issues raised by volunteer forwarding, including priority assignment, acknowledgement collisions and communication voids, have not been well addressed by the existing work. In this paper, we...
We present the Protocol for multicasting over directional antennas (MODA) for mobile ad hoc networks (MANET). MODA is the first protocol for MANET's that uses directional antennas to reduce data packet overhead. Without increasing energy consumption, MODA increases the range of transmission as a result of which fewer nodes are involved in the forwarding process, which results in a reduction in data...
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.