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In the era of Internet of Things (IoT), we face the challenges of integrating new IoT systems with the existing systems, which are in services for large scale and economic implementations. In this paper, we explore an approach for integrate wired-wireless systems based on industrial standards, such as Zigbee and DALI for optimizing the energy use as well as timely communicating the vital signals to...
The world's Air Traffic Control system still uses components defined in the 1940s following the 1944 meeting in Chicago which launched the creation of the International Civil Aviation Organisation (ICAO) [1]. This traditional ATC system uses analog radio systems for aircraft Communications, Navigation and Surveillance (CNS). AFTN is a good example for legacy ATC system. The major part of data message...
This paper presents the SUNRISE GATE, namely the interface through which users can run their experiments, accessing in a unified way the heterogeneous resources offered by the testbeds of the SUNRISE federation (http://fp7-sunrise.eu).
This paper presents the Spin trail to a Message Sequence Chart conversion tool (st2msc) that was developed as an auxiliary tool to a well-known Spin model checker. If the model of the system does not satisfy the specified requirement, Spin outputs the trail that demonstrates the exact execution path of the system, leading to wrong behaviour. The Spin trail is usually very long and, thus, very difficult...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
Distributed software systems are characterized by increasing autonomy. They often have the capability to sense the environment and react to it, discover the presence of other systems and take advantage of their services, adapt and re-configure themselves in accordance with the internal as well as the global state. Testing this kind of systems is challenging, and systematic and automated approaches...
The UNICORE grid system provides a seamless, secure and intuitive access to distributed grid resources. In recent years, UNICORE 5 is used as a well-tested grid middleware system in production grids (e.g. DEISA, D-Grid) and at many supercomputer centers world-wide. Beyond this production usage, UNICORE serves as a solid basis in many European and International research projects and business scenarios...
The increasing ubiquity of mobile embedded systems has been matched by the evolution of a variety of wireless network standards and technologies. The major constraints of wireless embedded systems are limitations of communication bandwidth, processing capabilities, and battery power. Remote wireless embedded systems often act as sensors, which provide data to a certain community. The exchange of data...
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