June 24, 2013
by Markus
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EMF Modeling in Traffic Surveillance Experiments

Abstract—We use a wireless sensor network equipped with acceleration sensors to measure seismic waves caused by rolling traffic. In this paper, we report on our experiences in applying an EMF-based data infrastructure to these experiments. We built an experimentation infrastructure … Continue reading

March 22, 2013
by Markus
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HWL — A high performance wireless sensor research network

Abstract—Current Wireless Sensor Networks (WSN) consist of low powered energy efficient nodes with short range radios and limited computation capabilities. Sensing applications with multiple sensors, high sample rates, and large spatial coverage are not realizable with conventional WSNs. We propose … Continue reading

July 2, 2012
by Markus
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ClickWatch – An Experimentation Framework for Communication Network Test-beds

Abstract—It is hard to experiment with test-beds for communi- cation networks: data produced in the network has to be retrieved and analyzed, networks must be reconfigured before and between experiments, data is often little structured (log-files) and analysis methods and … Continue reading

July 1, 2011
by Markus
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ClickWatch – Operating Testbeds for Network Devices

The central aim of ClickWatch is to mask the complexity of dynamic distributed hardware systems consisting of hundreds of nodes. For a user such a system appears as a simple centralized software system. This allows to accomplish the challenging task … Continue reading