The paper addresses the relay node placement problem in two-tiered wireless sensor networks. Given a set of sensor nodes in an Euclidean plane, our objective is to place minimum nu...
Future large-scale sensor networks may comprise thousands of wirelessly connected sensor nodes that could provide an unimaginable opportunity to interact with physical phenomena i...
Wireless Sensor Networks (WSNs) are a new technology that is expected to be used increasingly in the near future due to its cheap cost and data processing ability. However, securi...
The literature on programming sensor networks has focused so far on g higher-level abstractions for expressing local node behavior. Kairos is a natural next step in sensor network ...
We present a framework called Semantic Streams that allows users to pose declarative queries over semantic interpretations of sensor data. For example, instead of querying raw magn...