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In this paper, the authors consider a network of distributed sensors that are trying to measure a parameter of interest cooperatively, by exchanging their acquired information repeatedly over fading channels. They consider different ways of using the available bandwidth, in terms of what each node can send to its neighbors. More specifically, they characterize the impact of local fusion and show how it is a suitable policy when graph connectivity is low. When poor link qualities are the main bottleneck, on the other hand, they show how a diversity approach can be more beneficial. The proposed framework highlights the underlying trade-offs between fusion and diversity approaches in cooperative networks.
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