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The information-theoretic notion of energy efficiency is studied in the context of various joint source-channel coding problems. The minimum transmission energy required to communicate a source over a noisy channel so that it can be reconstructed within a target distortion is analyzed. Unlike the traditional joint source-channel coding formalisms, no restrictions are imposed on the number...
The energy-distortion function (E(D)) for a network is defined as the minimum total energy required to achieve a target distortion D at the receiver without putting any restrictions on the number of channel uses per source sample. E(D) is studied for a sensor network in which multiple sensors transmit their noisy observations of a Gaussian source to the destination over a Gaussian multiple access...
The energy-distortion tradeoff for lossy transmission of sources over multi-user networks is studied. The energy-distortion function E(D) is defined as the minimum energy required to transmit a source to the receiver within the target distortion D, when there is no restriction on the number of channel uses per source sample. For point-to-point channels, E(D) is shown to be equal to the product of...
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