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In this paper, we address the problem of separate encoding of correlated sources observed by sensor nodes that send their encoded information through a Gaussian multiple access channel (GMAC) with phase shifts. We suppose that the phases are perfectly known at the receiver and unknown to the transmitters. For discrete sources with finite-cardinality alphabets, we prove that the separation theorem...
We address the source-channel coding problem of a sensor observing a slowly time-varying Gaussian source and communicating its information to a receiver through a Gaussian channel. Due to the slowly time-varying characteristic of the source, we consider that the sensor is capable of using many channel dimensions per source symbol. Under an energy constraint per source realisation, we derive a theoretical...
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