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.
This article discussed the time synchronization performance monitoring system in the scope of 1588v2 telecom profile and presented three monitoring system modes: Master-slave monitoring (node-by-node monitoring), Passive-node monitoring on loop topology network (segmental monitoring), and multicast + unicast monitoring (full-path monitoring). The article detailed three monitoring modes' implementation,...
Synchronization, in general, is the process of event coordination so that a system performs in unison. In wireless sensor networks (WSN), the network topology often changes dynamically in time. This brings technical hitches and challenges into time synchronization of the sensor nodes in the WSN. In such networks, data routing scheme is either data fusion, fusion of decisions or hybrid fusion. No matter,...
Sensing node network system (SNNS) is a compatible system in detection of landslide disaster. In this system, absolute time and location information acquire by GPS is deployed. Synchronization of absolute time by all node in the system, enable this system to communicate in dual communication by time control. Location information by GPS, enable the system to estimate network topology and enable the...
Reliable communication is crucial for successful deployment of a wireless sensor network. Many environmental factors can affect the performance of radio links, and the deployment of a network without real-time information about link qualities can be a demanding task. This paper describes the CiNetView application that is intended to support the deployment and monitoring of wireless sensor network...
In Wireless Sensor Networks (WSNs) time synchronization is essential to aggregate and to process data collected by different nodes, both in real-time and off-line. However, time synchronization protocols at the application layer may significantly increase the amount of dissipated power. This paper analyzes this problem and suggests a communication scheme as well as a criterion to reduce the power...
Recently, lots of work investigated the geometry features, synchronization and control of complex dynamical networks provided with certain topology. But in the real life, the exact topology of a network is often uncertain. In this paper, a new approach for approximately identifying the topology of a complex network is proposed based on the state observer design only using a scalar coupling signal...
Despite much research on sensor networks in general and on event-response applications in particular, simultaneously achieving the desired timeliness of response, longevity, and wide-area coverage still remains a significant challenge. In this paper, we present a robust, flexible, and extremely energy efficient sensor networking system solution with the goal of enabling orders of magnitude improvements...
The Internet of Things vision introduces the capability of connecting smart sensor/actuators to locally available networks in order to allow the interaction with the real world. The two visions are, thus, perfectly integrated and ideally suited to perform the task of collecting simple information from the surrounding environment. Using smart distributed sensors and implementing data fusing and mining...
The underwater target localization problem is one important application for underwater acoustic sensor networks. This paper, based on "underwater acoustic transmission theory", solves the target localization problem. The proposed algorithm firstly studies the principle of underwater acoustics and applies it to set up the model of underwater signal energy transmission. According to the model,...
As Grid networks grows, the complexity of resource management in Grid networks dramatically increases. To manage the Grid resources efficiently, policy based resource management system is suitable. However, the policy which made at a moment could not be appropriate to other time because the condition of the grid resources with time space changes. Thus, in this paper, we propose asynchronous policy-based...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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.