Alessandro Testa

Italian National Research Council | CNR · Institute for High Performance Computing and Networking ICAR

Wireless Sensor Networks (WSNs) are being increasingly adopted in critical applications, where verifying the correct operation of sensor nodes is a major concern. Undesired events may undermine the mission of the WSNs. Hence, their effects need to be properly assessed before deployment, to obtain a good level of expected performance; and during the...

Wireless Sensor Networks (WSNs) are being increasingly adopted in critical applications, where verifying the correct operation of sensor nodes is a major concern. Undesired events may undermine the mission of the WSNs. Hence their effects need to be properly assessed before deployment to obtain a good level of expected performance and during the op...

Dependability is becoming one of the most crucial non functional properties of Wireless Sensor Networks (WSNs), as their adoption is more and more hypothesized in critical application scenarios. The extensive use of the WSNs in these scenarios stresses the need to verify their dependability properties at design time to prevent wrong design choices...

The problem of failure detection in mHealth monitoring systems is becoming more critical, and the use of wireless technologies and commodity hardware/software platforms pose new challenges to their correct functioning. Remote and continuous monitoring of patients' vital signs aims to improve the quality of life of patients. Such applications, howev...

The implementation of mHealth monitoring systems is attracting increasing attention in academia and industry due to rising healthcare costs and the aging of the world population. However, the problem of failure detection and management in mHealth monitoring systems is becoming more and more critical and the use of wireless technologies and the adop...

Wireless sensor networks (WSNs) are increasingly being adopted in critical applications. In these networks undesired events may undermine the reliability level; thus their effects need to be properly assessed from the early stages of the development process onwards to minimize the chances of unexpected problems during use. In this paper we propose...

The problem of failure detection in mHealth monitoring systems is becoming more critical, and the use of wireless technologies and commodity hardware/software platforms pose new challenges to their correct functioning. Remote and continuous monitoring of patients' vital signs aims to improve the quality of life of patients. Such applications, howev...

Resiliency is becoming one of the most important non functional properties of Wireless Sensor Networks (WSNs), as their adoption is more and more hypothesized in critical application scenarios. Hence, assessing the resiliency of WSN applications, protocols, and platforms is starting to be an import concern for WSN designers and developers. This pap...

The extensive use of the Wireless Sensor Networks (WSNs) in main critical scenarios stresses the need to verify their dependability properties at design time to prevent wrong design choices and at runtime in order to make a WSN more robust against failures that may occur during its operation. In literature, several approaches have been proposed in...

Many solutions are emerging for the remote and continuous monitoring of unpredictable health problems, such as cardiac diseases. These are designed to be minimally invasive for health monitoring and based on smart and mobile technologies conformable to the human body, helping to improve considerably the autonomy and the quality of life of patients....

Ambient Intelligence (AmI) is the emerging computing paradigm used to build next-generation smart environments. It provides services in a flexible, transparent, and anticipative manner, requiring minimal skills for human-computer interaction. Recently, AmI is being adapted to build smart systems to guide human activities in critical domains, such a...

Wireless Sensor Networks (WSNs) are widely recognized as a solution to build monitoring systems, even in critical environments. WSNs, however, are subjected to faults due to several causes (i.e. rain, EMF radiations, vibrations, etc..) and tools and methodologies for the design of dependable WSN-based systems are needed. Formal methods partially me...

As Wireless Sensor Networks (WSNs) are starting to be adopted in critical scenarios, it becomes important to study the behavior of WSN software in response to errors induced by hardware faults. To this aim, in this paper we present the results of an extensive fault-injection campaign, conducted on three different WSN operating systems (OSs). Result...

Wireless sensor networks WSN are spreading as a common mean for mitigating installation and management cost in environment monitoring applications. The increasing complexity ad heterogeneity of such WSN and the differentiated users needs calls for innovative solutions for managing and accessing produced data. This paper presents an architecture, na...

This paper introduces the design of a logging framework for the on-line failure analysis of Android Smart Phones. The framework enables the collection of failure data at runtime, useful to assess the dependability of smart phones, to deeply investigate the causes of failures, and to reduce maintenance efforts. Existing tools mainly focus on the col...

The design and realization of health monitoring applications has attracted the interest of large communities both from industry and academia. Currently many cardiac diseases are unpredictable; remote and continuous health monitoring for reliable detection of these problems becomes very useful for older people and patients. Clearly, the correct func...

Hospitalization is a very expensive and resource consuming alternative for those patients that have to be continuously monitored. The design and realization of health monitoring applications has attracted the interest of large communities both from industry and academia. Currently many cardiac diseases are unpredictable; remote and continuous monit...

The design and realization of health monitoring systems has attracted the interest of large communities both from industry and academia. Remote and continuous monitoring of patient's vital signs is the target of an emerging business market that aims both to improve the quality of life of patients and to reduce costs of national healthcare services....

Wireless sensor networks (WSN) are spreading as a common mean for mitigating installation and management cost in environment monitoring applications. The increasing complexity ad heterogeneity of such WSN and the differentiated users needs calls for innovative solutions for managing and accessing produced data. This paper presents an architecture,...

Ambient Intelligence (AmI) is the emerging computing paradigm used to build next-generation smart environments. It provides services in a flexible, transparent, and anticipative manner, requiring minimal skills for human-computer interaction. Recently, AmI is being adapted to build smart systems to guide human activities in critical domains, such a...

Ambient intelligence is an emerging discipline that brings intelligence to our everyday environments and makes those environments sensitive to us. Ambient Intelligence technologies are more and more frequently adopted in scenarios, like healthcare, crisis management, remote monitoring and control, which are critical for human safety. This requires...

This paper presents an effective approach for injecting faults/errors in WSN nodes operating systems. The approach is based on the injection of faults at the assembly level. Results show that depending on the concurrency model and on the memory management, the operating systems react to injected errors differently, indicating that fault containment...

The increasing use of wireless sensor networks (WSNs) calls for solutions for mastering the complexity due to WSN heterogeneity and differentiated user needs. This paper presents an architecture, named iCAAS, designed to collect, to store, to manage and to make available to users data received from heterogeneous WSNs. The aim of the architecture is...

As the incidence of faults in real Wireless Sensor Networks (WSNs) increases, fault injection is starting to be adopted to verify and validate their design choices. Following this recent trend, this paper presents a tool, named AVR-INJECT, designed to automate the fault injection, and analysis of results, on WSN nodes. The tool emulates the injecti...