Demo Abstract: CoojaTrace, Extensive Profiling for WSNs

CoojaTrace extends the Cooja WSN-Simulator by offering extensive logging capabilities for debugging and analyses of multi-node WSN deployments. This is implemented using Scala-based Functional Reactive Programming (FRP)-techniques, enabling flexible and easily programmable in-depth access to the internal node, as well as simulator execution state. CoojaTrace is part of the DryRun framework; a set of tools that instrument a WSN-Simulator for extensive analysis of WSN deployments. To achieve this, not only external accessible state like energy usage or serial output is needed, but also internal state like routing tables or operation state in general, which often requires the instrumentation of pointers, and can hardly be monitored by observing static memory addresses. Although some WSN-Simulators provide debug interfaces like a GDB-stub, an easy interface to log and analyze system state of a whole deployment is still lacking. This gap is filled by CoojaTrace by providing a simple and scriptable interface to access this data.