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The Internet of Things (IoT) paradigm gains momentum for vendors, developers and users. A variety of available devices and technologies promote the deployment of solutions and applications in various domains. However, the increasing amount of IoT devices leads to an increasing amount of resources made available to the users. If devices like smart phones or smart TVs are considered, this includes computing...
Caused by the proliferation of the (IoT) and its related application domains such as Building Automation or E-Health, users face a continuously increasing amount of heterogeneous sensors and devices deployed to their environment. As a result, a large variety of protocols, data formats and physical sensing resources needs to be managed in order to gain benefit from the deployed devices. This raises...
Caused by the proliferation of the Internet of Things (IoT) and its related application domains such as E-Health, users face a continuously increasing amount of heterogeneous sensors and devices deployed in their environment. As a result, a large variety of protocols, data formats and physical sensing resources needs to be managed in order to gain benefit from the deployed devices. Furthermore, the...
The increasing amount of ubiquitous devices and the ongoing convergence of Internet of Things related application domains, like Smart Homes or Ambient Assisted Living, make it difficult for device integration solutions to cover a comprehensive set of devices while paying respect to resource constraints. Moreover, device integration has to be merged with device abstraction mechanisms, in order to hide...
The pervasiveness of connected embedded devices and Internet of Things (IoT) related application domains like smart cities, e-Health or, transportation lead to an constantly increasing amount of data, compute- and storage resources surrounding us. However, currently there is a gap between data acquisition and processing, usually bridged by gateway based approaches that integrate the devices and forward...
E-Health systems need to dynamically integrate a huge variety of medical sensors in order to provide a meaningful survey of a patient's condition. Devices like smart phones or gateways usually used as integrators, often underlie resource constraints and have to cope with the mobility of the patient. Therefore it is difficult to realize an overall integration middleware, that allows to handle a sufficient...
Many QoS constraints in network environments exists, beginning with hard real time networks on the field bus level, up to Differentiated Services or VLAN tagging for commodity computer networks. However, all these approaches are not applicable for cloud-based environments, where networks need to be configured dynamically and on-demand. In this paper, we present an approach for centralized and dynamic...
In order to properly support patient treatment, e-health systems need to dynamically integrate heterogeneous types of medical sensors and provide access to streams of sensed medical data independent of the patients location or the movement of the respective medical devices. Treatment processes usually include several steps and medical departments, which means that sensors have to be moved between...
Infrastructure as a Service clouds often use virtual machines to host different customers on the same physical hardware. This form of resource sharing can lead to unpredicatable performance degradations for the individual customer, especially with regard to data-intensive applications, which heavily depend on stable I/O characteristics. One traditional approach to cope with I/O fluctuations is adaptive...
Tele-medicine solutions promote cost-effective and location independent medical assistance and monitoring. However, current solutions suffer from obstacles regarding interoperability and mobility. Seamless and suitable monitoring relies on a variety of different medical device types that transfer medical data from different locations while paying attention to security and privacy issues. Emergency...
Soaring costs and an aging society originate the need for novel technologies in health care sector. Especially telemedicine and AAL systems are often promoted as such. Enabling patients to stay in their domestic environment while reducing costs due to hospital visits seems to be an evaluable opportunity on the one hand but introduces a lot of challenges, like interoperability and security, on the...
IaaS clouds have become a promising platform for scalable distributed systems in recent years. However, while the virtualization techniques of such clouds are key to the cloud's elasticity, they also result in a reduced and less predictable I/O performance compared to traditional HPC setups. Besides the regular performance degradation of virtualized I/O itself, it is also the potential loss of I/O...
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