Uncertainty Nested in Uncertainty: Modeling in Sensor Networks

-Many models are required for undertaking research into physical phenomena using sensor networks: the source characteristics, the propagation medium, the noise and interference, the sensor transducer and its coupling to the media and the communications among the sensor nodes. Moreover, models are also used for various levels of signal processing and networking abstractions. The entire chain from observation toions. The entire chain from observation to conclusion is subject to uncertainties, not least whether the question the network is supposed to answer is meaningful. We enumerate the sources of uncertainty in sensor networks and suggest a framework for dealing with the different forms.