Silvano Mignanti

The goal of this paper is to provide typical Sensor Networks with the management primitives (e.g.: discovery, control) offered by an UPnP-compatible framework. The idea is to extend the concept of Plug & Play to Sensor Networks: each network node should be able to discover other nodes’ functionalities, retrieve measured data and/or enforce actions on network’s actuators, (in case) compose services offered by several nodes to fulfil complex goals. The proposed sensor management architecture uses UPnP-compatible messaging and Wireless Sensor Networks, being these last ones the most challenging scenario due to their intrinsic limitations. Such an innovative approach revealed to be extremely useful for body area networks, like the one being developed within the Bravehealth FP7 project.

This paper presents an algorithm able to estimate heartbeat parameters, based on a QRS complex detection. The proposed algorithm demonstrates to be able to recognize heartbeat parameters even in highly noisy situations, i.e. where the ECG signal is extremely disturbed. Furthermore the algorithm was tested on real ECG signals generated by a so called Wearable Unit, a complex bio-signals sensor being developed by STMicroelectronics within the Bravehealth ICT FP7 EU funded project.

In recent studies on Complex Systems and Systems-of-Systems theory, a huge effort has been put to cope with behavioral problems, i.e. the possibility of controlling a desired overall or end-to-end behavior by acting on the individual elements that constitute the system itself. This problem is particularly important in the “SMART” environments, where the huge number of devices, their significant computational capabilities as well as their tight interconnection produce a complex architecture for which it is difficult to predict (and control) a desired behavior; furthermore, if the scenario is allowed to dynamically evolve through the modification of both topology and subsystems composition, then the control problem becomes a real challenge. In this perspective, the purpose of this paper is to cope with a specific class of control problems in complex systems, the “composability of security functionalities”, recently introduced by the European Funded research through the pSHIELD and nSH...

Usage of Power Line Communication is highly increasing in several field of telecommunications: one of the most promising aim for it is to provide solutions for the smart grid panorama. At the same time, an increasing trend in usage of the IPv6 is emerging, protocol which perfectly couples with the smart grid scenario due to a number of reasons, among which reduced header size and, in particular, integrated QoS capabilities. The conjunction of the benefits of both IPv6 and QoS for PLC networks could enormously improve performances and interoperability among smart grid applications: in this scenario, the DLC+VIT4IP project aims at realizing a so called “Convergence Layer” which will be able to provide IPv6 communication with integrated advanced functionalities, among which a particular attention to QoS is given.

Peer-to-Peer systems are nowadays a very popular solution for multimedia distribution, as they provide significant cost benefits compared with traditional server-client distribution. Additionally, the distribution of scalable content enables the consumption of the content in a quality suited for the available bandwidth and the capabilities of the end-user devices. Thus, the distribution of scalable content over Peerto- Peer network is

To obtain access to a specific service or peripheral we need a procedure that processes a query about service type, capabilities, location, and so on, and returns a services and peripherals list. Service discovery has two important components that people look on distinctly: first is a service discovery protocol which is used to communicate with services on the net; second

— In a pervasive media fruition scenario, a fundamental functionality is the discovery of available multimedia contents: in fact, the first step in the long chain bringing a user to access a certain video, audio or, more in general, content, is to find it. In the literature there are a number of discovery protocols, each of them excelling in its particular field of application, and also a number of extensions to usual discovery architectures, especially to empower their descriptive capabilities. Most of these protocols are for service discovery, but fit very well for content discovery. In any case it is missing an architecture able to solve the problem of the inter-working among different content discovery approaches – typically, each protocol has its own rules, syntax and also limitations – instead to have a common architecture able to use all actual protocols in the same way. In this paper we propose a content discovery framework which addresses this problem, introducing the concept of ontology–based, multi-protocol content discovery: the proposed architecture, apart to use OWL to enhance, in the same common way, all descriptive capabilities of discovery protocols, is tailored to be compatible with all discovery protocols, due to the use of an opportune language: the CDQL (Common Discovery Query Language). It is used to perform basic discovery/registration mechanisms and to deal with the different protocol specific characteristics (ex. SLP, UPnP, Bluetooth). This architecture has been deployed and tested using the SLP and UPnP service discovery protocols, integrated with the powerful descriptive functionalities offered by OWL.

Abstract—In this paper we study the call admission control problem to optimize the network operators revenue guaranteeing quality of service to the end users. We consider a network scenario where each class of service is characterized by a different constant bit rate and an associated ...

In a pervasive computing scenario, a fundamental functionality is the discovery of available services: in fact, the first step in the long chain bringing an user to access a service is to find it. In the literature there are a number of service discovery protocols, each of them excelling in its particular field of application, and also a number of

IEEE 802.16/WiMAX is one of the most promising technologies for Broadband Wireless Access, both for fixed and mobile use. Many application scenarios have been studied so far, including Wireless Local Loop, Wireless DSL and as an alternative to 3G in developing countries. This paper presents an architectural solution to include a WiMAX based access segment in an end-to- end QoS