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The number of Internet-connected everyday objects grows thanks to the Internet of Things (IoT). The trend with this new paradigm where smart embedded devices, people, and systems are connected, is that over the next few years we could see a shift in the notion of what it means to be "on the Internet". In this context, Wireless Sensor Network (WSN) technology is an essential component of...
We propose a user-centric private key management framework that supports future personal sensing applications. This framework allows for a simple distributed private key system with embedded secure key storage and recovery in multiple parties. The user maintains control over implementation choices and the ability to consent to data being utilised or transmitted by the system. Our proposed framework...
Modeling is one of the most important topics in the domain of Cyber-Physical Systems (CPS). In the field of process modelling, Business Process Modeling and Notation (BPMN) is the most used standard. However, BPMN remains limited to cater for the specific characteristics and properties of CPS such as real world properties. In this paper, we propose BPMN4CPS, which provides a set of extensions for...
The Internet of Things promises an always-connected future where the objects surrounding us will communicate in order to make our lives easier, more secure, etc. This evolution is a research opportunity as new solutions must be found to problems ranging from network interconnection to data mining. In the networking community, innovative solutions are being developed for the Device Layer of the Internet...
The execution of sensing services within the Internet of Things (IoT) mandates considering IoT characteristics which include heterogeneity, scalability, dynamicity, randomness, and multiple ownership. In such environment new types of sensing coverage holes posed by anchor misplacement arise. The first type is actual coverage holes that have been falsely hidden and unreported. The second one is perceived...
The evolution of Internet of Things (IoT) is changing traditional perceptions of the current Internet towards a vision of smart objects interacting with each other. Wireless Sensor Networks play an important role and support different applications domains in the IoT environment. However, security issues are the major obstacle for their deployment. Among these issues, authentication of the different...
To enable a prosperous Internet of Things, devices and services must be extensible and adapt to changes in the environment or user interaction patterns. These requirements manifest as a set of design principles for each of the layers in an IoT ecosystem, from hardware to cloud services. This paper gives concrete guidelines learned from building a full-stack Synergistic IoT platform.
With the advent of the Internet of Things (IoT) and its need to boost cooperation between different objects in order to improve the quality and the completeness of the produced information, it is important to understand and to evaluate data which comes out and goes into each thing. In this paper we propose CACHACA, a ranking mechanism for Sensor Networks that facilitate the discovery of services provided...
The widespread proliferation of sensor nodes in the era of Internet of Things (IoT) coupled with increasing sensor fidelity and data-acquisition modality is expected to generate 30+ Exabytes of data per month by 2020. In this data driven IoT world, wireless communication is a significant consumer of energy, and paying careful attention to the balance between local and remote computation is critical...
The mobile context of Mobile Wireless Sensor Networks (MWSN) limits the existence of a direct route from source to destination. A Disruption Tolerant Networking (DTN) architecture fits the requirements for such a context where messages need to be stored, carried and forwarded. For this kind of DTN applications, the goal is to achieve a high delivery ratio at low transmission cost with the lowest latency...
In this paper, a data acquisition and integration platform for internet of things is proposed. The platform is developed under a cloud computing environment using context-oriented approaches. It collects sensor data from different types of sensor devices, including such as RFID, ZigBee sensors, GPS devices, temperature sensors, humidity sensors, luminance sensors, etc. First we are devoted to the...
This paper presents a framework for the virtualization of real world objects and the cognitive management of their virtual counterparts. The framework consists of three levels of functionality and each level comprises cognitive entities that provide the means for self-management and learning, allowing for smart, flexible applications and objects. The presented framework enables the abstraction of...
This visionary paper presents the Internet of Things paradigm in terms of interdependent dynamic dimensions of objects and their properties. Given that in its current state Internet of Things (IoT) has been viewed as a paradigm based on hierarchical distribution of objects, evaluation of the dynamic nature of the hierarchical structures faces challenges in its evaluation and analysis. Within this...
This paper describes the core of an spontaneous service provision framework offering general functionality based on objects in Internet of Things. The framework supports sensor, wireless network and end system based on services and service features. The framework is more generic than traditional hierarchical sensor and actuator networks framework. It supports grids and spontaneous service provision...
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