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The ever increasing integration of renewable energy resources into the electric energy system gives rise to new challenges on a large scale. New and extended information technology is necessary for controlling the corresponding power grids and their components. The need for advanced control functions and ancillary services provided by distributed energy resources is also increasing. As a response...
For upcoming smart grid information and communication architectures, security is an indispensable requirement in order to ensure security of supply, to prevent damages to the electricity supply, loss or manipulation of personal or accounting information, etc. This must be taken into account throughout all developmental phases when creating such a framework, i.e., from the design phase on. Therefore,...
For control systems the timely and dependable transmission of sensor data to a controlling instance is a necessary precondition to perform the intended control task. Yet the communication infrastructures used for this purpose usually have to work under difficult circumstances in the field, e.g., wireless networks might be lacking energy to successfully transmit data. In order to guarantee the robustness...
In the field of mobile wireless communication, energy efficient protocols are crucial in order to ensure a widespread use of wireless technologies. These protocols determine the sending strategy, i.e. the decision when, where and how much data is transmitted, as well as the packet size and field strength of the sending antenna. We defined a model for the energy household of smart sensors, who are...
Energy efficiency of wireless communication technologies is a crucial aspect in order to ensure a widespread use. To increase the efficiency, intelligent protocols (on different layers w.r.t. the OSI architecture) determine when, where and how data has to be transmitted, i.e. they set such parameters like packet size or field strength of the sending antenna. We defined a ubiquitous energy model and...
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