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.
SDN and NFV are two paradigms that introduce unseen flexibility in telecom networks. Where previously telecom services were provided by dedicated hardware and associated (vendor-specific) protocols, SDN enables to control telecom networks through specialized software running on controllers. NFV enables highly optimized packet-processing network functions to run on generic/multi-purpose hardware such...
The transition from today's electricity grid to the so-called smart grid relies heavily on the usage of modern information and communication technology to enable advanced features like two-way communication, an automated control of devices, and automated meter reading. The digital backbone of the smart grid opens the door for advanced collecting, monitoring, and processing of customers' energy consumption...
Global warming is big issue of this time. It is caused by producing emissions, mainly carbon dioxide. Many organizations tries to establish restrictions to limit CO2 emissions. Our aim is to monitor underground parking lots and detect level of carbon dioxide using wireless sensor network. Gained results are drawn in the map of pollution of monitored area.
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,...
Precise, fast and scalable fault localization is a highly desired feature in all optical mesh networks. The monitoring trail (m-trail) framework has been long in use for centralized failure localization, its capabilities were recently utilized to accommodate the distributed scenario as well. Most of the prior art focused solely on link failures; in this study we step further and analyze node failures...
The cooperative monitoring problem refers to the placement and configuration of passive monitoring points (or monitors) to jointly realize a task of monitoring time-varying traffic flows. Given a traffic monitoring task, e.g., monitor a traffic flow percentage, the objective consists in minimizing the total monitoring cost to realize this task. We formulate the corresponding problem as a mixed-integer...
A Mobile Ad-hoc Network (MANET) has special characteristics such as dynamic topology, the absence of an administrative point and no fixed infrastructure. These features make it vulnerable to many attacks, such as the Denial of Service (DoS) attack. This type of attack deprives users of access to their legitimate services leading to degradation of the network. This paper posits the Monitor, Detect,...
The technology of smart grid (SG) shapes the traditional power grid into a dynamical network which includes a layer of information that flows through the energy system. Recorded data from a variety of parameters in SGs, can improve analysis of different supervisory problems, but an important issue is the cost and power efficiency in data analysis procedures. This paper presents an efficient solution...
The paper presents a mathematical statement of the problem of finding a rational topology of wireless sensor networks (WSN) using unmanned aerial vehicles (UAVs), which consists of problem of sensor localization in monitoring zone and problem of UAV relays localization in the space for the organization of connected network with desired characteristics.
The paper deals with the problem of performance of Unmanned Aerial Vehicles group flights for decision of different tasks. In paper criteria of efficiency for the performance of tasks of Unmanned Aerial Vehicles group flight are analyzed. It was used graph theory for quantity estimation of effectiveness of Unmanned Aerial Vehicles group flight. Also it was intended flight group performance criteria...
In this paper, we present research work related to processing and analysis of big trajectory and Twitter data streams using Apache Storm framework. We present the TrafficStorm application implemented as Storm topology, and describe its implementation on a cluster of commodity computers. TrafficStorm performs processing of big trajectory data streams related to users moving over a street network, as...
As the recent development of low power communication techniques, IoT applications have been implemented using various communication method. Among them, the Bluetooth Low Energy(BLE) which has been widely adopted in the most of smartphone plays a major communication channel for the range of industrial applications as well as the personal applications. However, since BLE supports only the star topology,...
Supporting real-time, cost-effective execution of Complex Event processing applications in the cloud has been an important goal for many scientists in recent years. Distributed Stream Processing Systems (DSPS) have been widely adopted by major computing companies as a powerful approach for large-scale Complex Event processing (CEP). However, determining the appropriate degree of parallelism of the...
Wireless sensor networks (WSNs) is an area of research that has been getting a lot of attention lately. This is due to the rapid advancements in the design of wireless devices which have increasingly more processing, storage, memory, and networking capabilities. In addition, the cost of sensors is constantly decreasing making it possible to use large quantities of these sensors in a wide variety of...
Wireless sensor and actor networks are used enormously in critical applications. Due to their clustered structure, where the actors are the cluster heads, failure of an actor disrupts the inter-actor communication and may lead to partition in the network. Network thus partitioned divides the sensing area into discrete segments, leaving coverage holes. Dimension of such coverage holes depends on the...
The IPv6 Routing Protocol for Low-power and Lossy networks (RPL) is a standard routing protocol to realize the Internet of Things (IoT). Since RPL is a tree-based topology network, an attacking node may falsely claim its rank towards neighbor nodes in order to be chosen as a parent of them and to collect more packets to tamper. In this paper, we propose a secure parent selection scheme so that each...
In this paper are presented the progress made in the draft research developed at the University Catholic of Salta, called "Telemetry of seismic events" which aims provide the capital city of Salta a seismic monitoring network continuous. In this case focuses on studying the physical and logics topologies more convenient to implement, as well as the method of media access that best suits...
A large class of emerging compute-intensive applications demand real-time or near real-time processing guarantees on streaming data. Sensor processing in particular, has stringent latency requirements for carrying out its digital processing for rapidly incoming radar data streams. The consequent demands on the cluster middleware used to run such codes include (i) efficient online observation of current...
This paper presents a method for the analysis of plant disturbances based on the combined monitoring of different but interrelated propagation carriers, specifically material flow-type and information flow-type carriers. The underlying notion of the proposed approach is that certain properties of plant assets, so-called propagation-related factors (PRFs), determine the behavior of disturbances being...
With the rapid development of computer technology and application, the information system of power grid scale is more and more big. The relevant data of grid operation become more and more. The operator is facing all sorts of massive data and huge workload. Compared with the traditional form of text and charts, graphical display has irreplaceable advantages in readability, usability, appearance and...
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.