Event: PhD Defense of Kennie Jones Directors: Stephan Olariu and Larry Wilson Date: Friday, May 2, 2008 Time: 8-10 AM Place: E&CS Building Room 3316 (CS Conference Room) Title: BIOLOGY-INSPIRED APPROACH FOR COMMUNAL BEHAVIOR IN MASSIVELY DEPLOYED SENSOR NETWORKS Abstract: Research in wireless sensor network technology has accelerated rapidly in the last few years. Promises of ubiquitous control of the physical environment by these networks open avenues for new applications that will redefine the way we live and work. Due to the small size and low cost of sensor devices, visionaries promise smart systems enabled by deployment of massive numbers of sensors working in concert. To date, the reduction in size has been phenomenal although it results in severe limitations on the computing, communicating, and power capabilities of these devices. Under these constraints, research efforts have concentrated on developing techniques for performing relatively simple tasks with minimal energy expense, assuming some form of centralized control. Unfortunately, centralized control does not scale to massive size networks and execution of simple tasks in sparse networks will not lead to the sophisticated applications predicted. This PhD thesis proposes a new way of looking at sensor networks, motivated by lessons learned from the way biological ecosystems are organized. It demonstrates that in such a model, fully distributed functions can be performed in a scalable fashion in massively deployed sensor networks, where individual sensor devices autonomously operate based on local information, making local decisions that are aggregated across the network to achieve a globally-meaningful effect.