Cooperative Sensor Networks with Misinformed Sensors

摘要

We consider the communication from a cooperativernsensor network to a mobile access point. We assume that sensorsrnare informed with a global message and some nodes are misinformedrnwith random messages. The mobile access point employs arnpolling-based multiple access control to collect information fromrnthe sensor network. We derive the maximum achievable rate forrnthe information retrieval process when d sensors are activatedrnat a time. For the Gaussian multiple access channel under therntotal network power constraint, we derive an achievable raternexpression and show that the maximum achievable rate for thernGaussian multiple access channel is O(log_2 d), obeying the samernscaling law as the capacity of an Gaussian multiple-input-singleoutputrnchannel.