Sympathy: a debugging system for sensor networks [wireless networks]

This work presents a preliminary design and evaluation of Sympathy, a debugging tool for pre-deployment sensor networks. Sympathy consists of mechanisms for collecting system performance metrics with minimal memory overhead; mechanisms for recognizing events based on these metrics; and a system for collecting events and their spatio-temporal context. Sympathy introduces the idea of correlating seemingly unrelated events, and providing context for these events, in order to track down bugs and find their root causes. Eventually, Sympathy will be part of a system that can aid in debugging sensor networks both pre- and post-deployment.