Thursday, February 24, 2005
In this talk, I will show how several domain-specific properties can be efficiently exploited to make these sensing applications extremely robust against failures. In particular, for the wireless sensors (e.g., motes), I will show how the underlying broadcast medium can be exploited to robustly compute aggregates over sensor data and to dynamically adapt the topology. For the sensors (e.g., webcams) directly connected to the Internet, I will show how the weak data consistency requirements of the applications can be exploited to tolerate many large failures common to today's Internet. I will describe the challenges and my solutions in the context of IrisNet, a sensing infrastructure that I have designed and implemented as part of my thesis work.
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