The Experts below are selected from a list of 135 Experts worldwide ranked by ideXlab platform
Klara Nahrsted - One of the best experts on this subject based on the ideXlab platform.
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smart a scalable Middleware Solution for ubiquitous multimedia service delivery
International Conference on Multimedia and Expo, 2001Co-Authors: Yi Cui, Klara NahrstedAbstract:A scalable Middleware Solution for QoS-aware multimedia service delivery in the ubiquitous computing environment remains a challenging problem. Its heterogeneous and dynamic nature demands a more flexible and intelligent framework. We present SMART, a self-reconfigurable component-based Middleware Solution to address this issue. The system responds to the reconfiguration requests from applications and users to offer extensibility and efficiency. Furthermore, we present an active controlling mechanism, in which the Middleware is able to adapt to the environment variation in a timely fashion. In addition, we describe user management in our framework, which preserves our user-centric philosophy. Finally, we discuss MobiMan, an integrated multimedia service platform as the proof-of-concept application of SMART.
Paolo Ellavista - One of the best experts on this subject based on the ideXlab platform.
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a Middleware Solution for wireless iot applications in sparse smart cities
Sensors, 2017Co-Authors: Paolo Ellavista, Carlo Giannelli, Stefano Lanzone, Giulio Riberto, Cesare Stefanelli, Mauro TortonesiAbstract:The spread of off-the-shelf mobile devices equipped with multiple wireless interfaces together with sophisticated sensors is paving the way to novel wireless Internet of Things (IoT) environments, characterized by multi-hop infrastructure-less wireless networks where devices carried by users act as sensors/actuators as well as network nodes. In particular, the paper presents Real Ad-hoc Multi-hop Peer-to peer-Wireless IoT Application (RAMP-WIA), a novel Solution that facilitates the development, deployment, and management of applications in sparse Smart City environments, characterized by users willing to collaborate by allowing new applications to be deployed on their smartphones to remotely monitor and control fixed/mobile devices. RAMP-WIA allows users to dynamically configure single-hop wireless links, to manage opportunistically multi-hop packet dispatching considering that the network topology (together with the availability of sensors and actuators) may abruptly change, to actuate reliably sensor nodes specifically considering that only part of them could be actually reachable in a timely manner, and to upgrade dynamically the nodes through over-the-air distribution of new software components. The paper also reports the performance of RAMP-WIA on simple but realistic cases of small-scale deployment scenarios with off-the-shelf Android smartphones and Raspberry Pi devices; these results show not only the feasibility and soundness of the proposed approach, but also the efficiency of the Middleware implemented when deployed on real testbeds.
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an ims based Middleware Solution for energy efficient and cost effective mobile multimedia services
Mobile Wireless Middleware Operating Systems and Applications, 2009Co-Authors: Paolo Ellavista, Antonio Corradi, Luca FoschiniAbstract:Mobile multimedia services have recently become of extreme industrial relevance due to the advances in both wireless client devices and multimedia communications. That has motivated important standardization efforts, such as the IP Multimedia Subsystem (IMS) to support session control, mobility, and interoperability in all-IP next generation networks. Notwithstanding the central role of IMS in novel mobile multimedia, the potential of IMS-based service composition for the development of new classes of ready-to-use, energy-efficient, and cost-effective services is still widely unexplored. The paper proposes an original Solution for the dynamic and standard-compliant redirection of incoming voice calls towards WiFi-equipped smart phones. The primary design guideline is to reduce energy consumption and service costs for the final user by automatically switching from the 3G to the WiFi infrastructure whenever possible. The proposal is fully compliant with the IMS standard and exploits the recently released IMS presence service to update device location and current communication opportunities. The reported experimental results point out that our Solution, in a simple way and with full compliance with state-of-the-art industrially-accepted standards, can significantly increase battery lifetime without negative effects on call initiation delay.
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redman a decentralized Middleware Solution for cooperative replication in dense manets
IEEE International Conference on Pervasive Computing and Communications, 2005Co-Authors: Paolo Ellavista, Antonio Corradi, Eugenio MagistrettiAbstract:The mass market of wireless devices is pushing towards service provisioning over dense mobile ad-hoc networks (MANETs), i.e., limited spatial regions, such as university campuses, airports and shopping malls, where many mobile wireless peers autonomously cooperate, without the need of statically deployed support infrastructures. Dense MANETs can take advantage of high node population to replicate resources of common interest to increase their availability overcoming unpredictable node movements. The paper proposes a lightweight application-level Middleware, called REDMAN, to manage, retrieve and disseminate replicas of data and service components transparently from the point of view of service developers, thus facilitating the realization of scalable distributed applications for dense MANETs. REDMAN proposes novel lightweight Solutions, specific for and effective in dense MANETs, to determine dense region boundaries, to perform resource cloning/distribution/retrieval, and to approximately maintain the desired resource replication degree.
Mauro Tortonesi - One of the best experts on this subject based on the ideXlab platform.
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a Middleware Solution for wireless iot applications in sparse smart cities
Sensors, 2017Co-Authors: Paolo Ellavista, Carlo Giannelli, Stefano Lanzone, Giulio Riberto, Cesare Stefanelli, Mauro TortonesiAbstract:The spread of off-the-shelf mobile devices equipped with multiple wireless interfaces together with sophisticated sensors is paving the way to novel wireless Internet of Things (IoT) environments, characterized by multi-hop infrastructure-less wireless networks where devices carried by users act as sensors/actuators as well as network nodes. In particular, the paper presents Real Ad-hoc Multi-hop Peer-to peer-Wireless IoT Application (RAMP-WIA), a novel Solution that facilitates the development, deployment, and management of applications in sparse Smart City environments, characterized by users willing to collaborate by allowing new applications to be deployed on their smartphones to remotely monitor and control fixed/mobile devices. RAMP-WIA allows users to dynamically configure single-hop wireless links, to manage opportunistically multi-hop packet dispatching considering that the network topology (together with the availability of sensors and actuators) may abruptly change, to actuate reliably sensor nodes specifically considering that only part of them could be actually reachable in a timely manner, and to upgrade dynamically the nodes through over-the-air distribution of new software components. The paper also reports the performance of RAMP-WIA on simple but realistic cases of small-scale deployment scenarios with off-the-shelf Android smartphones and Raspberry Pi devices; these results show not only the feasibility and soundness of the proposed approach, but also the efficiency of the Middleware implemented when deployed on real testbeds.
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spf an sdn based Middleware Solution to mitigate the iot information explosion
International Symposium on Computers and Communications, 2016Co-Authors: Mauro Tortonesi, James Michaelis, Alessandro Morelli, Niranja Suri, Michael A AkeAbstract:Managing the extremely large volume of information generated by Internet-of-Things (IoT) devices, estimated to be in excess of 400 ZB per year by 2018, is going to be an increasingly relevant issue. Most of the approaches to IoT information management proposed so far, based on the collection of IoT-generated raw data for storage and processing in the Cloud, place a significant burden on both communications and computational resources, and introduce significant latency. IoT applications would instead benefit from new paradigms to enable definition and deployment of dynamic IoT services and facilitate their use of computational resources at the edge of the network for data analysis purposes, and from smart dissemination Solutions to deliver the processed information to consumers. This paper presents SPF (as in “Sieve, Process, and Forward”), an SDN Solution which extends the reference ONF architecture replacing the Data Plane with an Information Processing and Dissemination Plane. By leveraging programmable information processors deployed at the Internet/IoT edge and disruption tolerant information dissemination Solutions, SPF allows to define and manage IoT applications and services and represents a promising architecture for future urban computing applications.
Yi Cui - One of the best experts on this subject based on the ideXlab platform.
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smart a scalable Middleware Solution for ubiquitous multimedia service delivery
International Conference on Multimedia and Expo, 2001Co-Authors: Yi Cui, Klara NahrstedAbstract:A scalable Middleware Solution for QoS-aware multimedia service delivery in the ubiquitous computing environment remains a challenging problem. Its heterogeneous and dynamic nature demands a more flexible and intelligent framework. We present SMART, a self-reconfigurable component-based Middleware Solution to address this issue. The system responds to the reconfiguration requests from applications and users to offer extensibility and efficiency. Furthermore, we present an active controlling mechanism, in which the Middleware is able to adapt to the environment variation in a timely fashion. In addition, we describe user management in our framework, which preserves our user-centric philosophy. Finally, we discuss MobiMan, an integrated multimedia service platform as the proof-of-concept application of SMART.
D.e. Corman - One of the best experts on this subject based on the ideXlab platform.
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The OCP - an open Middleware Solution for embedded systems
Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001Co-Authors: James L Paunicka, B.r. Mendel, D.e. CormanAbstract:The Open Control Platform (OCP) is an important software technology component of the Software-Enabled Control (SEC) research program being funded by the US Defense Advanced Research Projects Agency (DARPA). The goal of SEC is to develop new controls and software technology that will enable new control applications that are impractical or intractable using current approaches. The OCP provides an open, Middleware-enabled software framework and development platform for control technology researchers who want to demonstrate their technology in simulated or actual embedded system platforms. The embedded system domain of particular interest to the SEC program is that of uninhabited aerial vehicles (UAVs). This paper describes the OCP approach to handling the challenges of UAV control, including support for all levels of vehicle control (including low-level flight control), interaction between a UAV and other platforms (e.g. another UAV, ground station, control by a piloted aircraft), innovative scheduling techniques, adaptive resource management and support for dynamic reconfiguration. The OCP is being developed by the Embedded Systems Research Team within the Boeing Phantom Works Open Systems organization. Assisting Boeing in these efforts are the Georgia Institute of Technology, Honeywell Labs and the University of California at Berkeley. The OCP is being delivered to a host of university and industrial researchers who are participating in the SEC program.