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Research in sensor networks, continuous queries (CQ), and other
domains has been motivated by powerful applications that aim to
aggregate, assimilate, and interact with scores of sensor networks
in parallel. Numerous system ingredients are necessary to make
these applications possible. Sensor network research is building
some of these components from the bottom up, dealing with issues
such as wireless connectivity and battery life. CQ, peer-to-peer
(P2P), and other research areas are building top down, examining
in-network services, naming, decentralized queries, and scale. While
many research groups use the same types of applications to motivate
their work, many of these applications cannot be built today because
of missing bridge research. These challenges include: uniting vastly
differing devices and services, managing intermittent connectivity,
placing in-network services with QoS and other constraints, developing
unified security models, and correlating between sensor networks.
This paper distills these new problems and outlines one proposed
system that explores solutions to these concerns.
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