Visual Sensor Modeling of Wireless Sensor Networks Yang

Visual. Sensor: Modeling of Wireless Sensor Networks Yang Zhao Graduate Student UC Berkeley Program Review May 10, 2004 Berkeley, CA NSF UC Berkeley: Chess Vanderbilt University: ISIS University of Memphis: MSI Foundations of Hybrid and Embedded Software Systems

Overview • Supports sophisticated modeling of : • • • communication channels, sensor channels ad-hoc networking protocols media access control protocols localization strategies energy consumption in sensor nodes • Supports Component-based definition of network nodes and channel models • Intended to enable the research community to share models of disjoint aspects of the sensor nets problem • Based on Ptolemy II, composable with other models of computation from Ptolemy II • Open source Chess Review, May 10, 2004 2

Model Structure • Sensors are modeled by actor components, can be defined using Java code or hierarchical Ptolemy models. • Channel models handle communication between the actors • Sophisticated channel components can be developed to model package loss, propagation delay, power loss, terrain effects etc. • Wireless. Director mediates the model execution • Support visual representations of sensor nodes and animation of sensing, node mobility, etc Chess Review, May 10, 2004 3

Chess Review, May 10, 2004 4