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.
Timely detection and localization of the gas leak are heated issues in the area of wireless sensor networks (WSN). Different methods have been proposed for various applications. In this paper, a new scheme is presented to monitor and estimate the leak of gas source. In our proposed approach, the gas source is located by employing maximum likelihood (ML) while the gas concentration is collected by...
To reduce the energy consumption and maximize the lifetime of the wireless sensor network (WSN), different techniques are developed to reduce the communication over WSN. However, it is also critical to discuss the energy cost problems in computing and maintaining the information of aggregate queries. Currently, some in-network temporal data suppression techniques are developed for more efficiently...
In pervasive computing applications, how to effectively manage and query XML data streams is an important issue. Particularly, query rewriting techniques for processing complex query which can cause ambiguities and redundant query cost, have been proposed to simplify query and remove its redundancy. However, less attention has been paid to make use of query rewriting to benefit the query evaluation...
Streaming XML data is often encountered in applications in medical biology. So, how to effectively manage and query XML data streams can be a fundamental issue for the quality of those medical biology applications. With respect to current methods for XPath query evaluation over XML data streams, adoption of some query rewriting techniques are common when encountering some complex query which can cause...
In this paper, an anti-sensor network system is proposed, aiming to protect an important area from being under surveillance by an adversary's sensor nodes. The major components of the system are a set of observing points (monitors) deployed in the area of importance. The observers try to localize sensor positions using antenna arrays to measure direction of arrival (DoA) and received signal strength...
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.