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.
In order to enable the development of smart services, many IoT platforms were proposed to securely and reliably connect IoT devices to the Internet and to each other. Examples are IoTivity from Open Connectivity Foundation (OCF), AllJoyn from AllSeen Alliance, Weave from Google and HomeKit from Apple. However, such fragmentation of IoT platforms has made the development of IoT applications very difficult...
Integrated environmental modelling (IEM) couples interdependent environmental models and data together to solve complex environmental problems. There are two major modelling frameworks for IEM: component based framework, and service oriented framework. This paper suggests to take the best of both to couple modelling components and services together. The result is a hybrid method to leverage Open Modelling...
Service virtualization is an approach that uses virtualizedenvironments to automatically test enterprise services inproduction-like conditions. Many techniques have been proposedto provide such a realistic environment for enterprise services. The Internet-of-Things (IoT) is an emerging field which connectsa diverse set of devices over different transport layers, usinga variety of protocols. Provisioning...
The continuous evolution of elastic optical networks (EONs) toward more efficient and flexible backbone networks has been enabled by the innovation of data and control plane technologies. Network Configuration Protocol (NETCONF) is emerging as a software-defined networking (SDN) protocol for the control of optical networks. Its relevance is due to the fact that, besides providing control functionalities...
Heterogeneity in constrained networks and gateways is perhaps one of the single greatest challenges facing end-to-end management of devices and networks in the IoT. Today, the Lightweight M2M (LWM2M) protocol, leveraged on open Internet standards, has become a strong contender for REST-based IoT management. However, significant challenges exist for remote gateway management, particularly for proxies...
Service Function Chaining (SFC) consists of SFC data plane and control plane from the aspect of architecture. The standard document of I-D.ietf-sfc-control-plane-00 describes requirements for delivering information between SFC control elements and SFC functional elements. This paper defines requirements of management of SFC control plane and defines Yang data model of management operations performed...
In cloud computing, the paradigm of data outsourcing introduces security challenges, which requires an independent auditing service to check the data integrity in the cloud. Many existing integrity checking protocols cannot be applied to the auditing service because they can only deal with static data, but it is natural for the client to dynamically update their remotely stored data. Thus, an efficient...
Virtual Observatory (VO) is a world-wide ecosystem of mutually compatible datasets, resources, services, and~software tools which use a common set of technologies and~standards. SPLAT-VO is a leading stellar spectra analysis tool that allows displaying, modifying and~analyzing astronomical spectra. SPLAT-VO also serves as a reference implementation of new VO protocols and data models and~is~being...
Software Defined Networking (SDN) became a popular concept where a flexible network architecture is required. One of the widely used approaches to SDN is based on the OpenFlow (OF) protocol that allows controllers to configure OF capable network switches. The OF protocol is focused on a flow-based control of a switch. Besides OF itself, Open Networking Foundation (ONF) has introduced the OF-CONFIG...
Internet of Things is a paradigm that defines networking of various kinds of devices that are typically constrained, e.g., by limited amount of memory. Lightweight Machine to Machine (LWM2M) is a client-server protocol for managing such constrained devices. It is based on the Constrained Application Protocol (CoAP). Group communications remain undefined in LWM2M specifications, but can be supported...
The importance and reach of sensors networks grows every year, however, there are still many challenges that must be addressed. One of them, is the standardized interchange of information that enable interoperability between different networks and applications. To answer this challenge, the Open Geospatial Consortium (OGC) has created the Sensor Web Enablement (SWE) specification. SWE has given place...
To build a simple picture of M2M communication under service-oriented M2M architecture, a key innovation underlines the enablement of M2M device abstraction and semantics support. However, state of the art structures of M2M devices/software lack common M2M Service Layer for interoperability. Devices/software rely heavily on specific API implementation-oriented data services and the data definition...
This paper deals with distributed simulations and the communication protocols used to reach interoperability between simulation applications. High-Level Architecture is one of the used protocols to interconnect different types of simulators. Application called RTI is responsible for manage communication between simulators. This paper describes how to connect distributed simulations using the HLA architecture...
Electric power industries have expanded the automation of their networks in recent years to meet the growing demands for improvements in services. The introduction of the concept of Smart Grid, the increased availability of smart devices and improvements in telecommunications are key factors for that. Besides the benefits in control and management that this concept brings, there are some technical...
Standardization of Internet protocols is usually a somewhat slow process. The reasons for this are manifold. Besides working out the protocol details, things like opposing stakeholder interests can prolong the consensus building process, new requirements might be introduced that require technical changes to the protocol, coordination across standards developing organizations (SDOs) might add delays...
This paper describes a model-driven implementation of a standard-compliant Customer Energy Manager (CEM). The advantage of the proposed implementation methodology over conventional techniques is the automatic support of standard data models and the possibility to express CEMS logic in a protocol-independent way. In particular, the logic can be expressed as a state machine, with language constructs...
CAN-bus occupies a very important position in the bus field, which has the advantages of high rate, strong resistance to electronic interference, automatic error detection, etc. This article describes a CAN-bus controller model and the user interface which is used to simplify the operation of model. The controller model is full compliance with the definition of "CAN Specification V2.0",...
Scientific simulations are moving away from using centralized persistent storage for intermediate data between workflow steps towards an all online model. This shift is motivated by the relatively slow IO bandwidth growth compared with compute speed increases. The challenges presented by this shift to Integrated Application Workflows are motivated by the loss of persistent storage semantics for node-to-node...
Data summarization is an effective approach to dealing with the "big data" problem. While data summarization problems traditionally have been studied is the streaming model, the focus is starting to shift to distributed models, as distributed/parallel computation seems to be the only viable way to handle today's massive data sets. In this paper, we study ε-approximations, a...
Condition monitoring and maintenance of devices and equipment is an important aspect of operating a production facility affecting the availability of production systems. Modern production environments can consist of thousands of devices that each need to be monitored so that maintenance can be performed when necessary to sustain a cost-effective state of production. Today operation and maintenance...
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.