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Cooperative Communications
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This article reviews progress in cooperative communication networks and intends its presentation to be a tutorial for the reader who is familiar with information theory concepts but has not actively followed the field.Abstract:
This article reviews progress in cooperative communication networks. Our survey is by no means exhaustive. Instead, we assemble a representative sample of recent results to serve as a roadmap for the area. Our emphasis is on wireless networks, but many of the results apply to cooperation in wireline networks and mixed wireless/wireline networks. We intend our presentation to be a tutorial for the reader who is familiar with information theory concepts but has not actively followed the field. For the active researcher, this contribution should serve as a useful digest of significant results. This article is meant to encourage readers to find new ways to apply the ideas of network cooperation and should make the area sufficiently accessible to network designers to contribute to the advancement of networking practice.read more
Citations
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References
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Proceedings ArticleDOI
An efficient protocol for realizing cooperative diversity in wireless networks
TL;DR: Two variants of an energy-efficient cooperative diversity protocol are developed that combats fading induced by multipath propagation in wireless networks and can lead to reduced battery drain, longer network lifetime, and improved network performance in terms of, e.g., capacity.
Journal ArticleDOI
Modulation and coding for linear Gaussian channels
G.D. Forney,G. Ungerboeck +1 more
TL;DR: This paper surveys how the capacity of the linear Gaussian channel has been met during the past half century, and new capacity-approaching techniques include turbo coding and decoding, multilevel coding, and combined coding/precoding for intersymbol-interference channels.
Proceedings ArticleDOI
Increasing uplink capacity via user cooperation diversity
TL;DR: Results show that, even though the inter-user channel is noisy, cooperation leads not only to an increase in capacity but also to a more robust system, where users' achievable rates are less susceptible to channel variations.
Journal ArticleDOI
Optimal power allocation for relayed transmissions over Rayleigh-fading channels
TL;DR: Numerical results show that optimizing the allocation of power enhances the system performance, especially if the links are highly unbalanced in terms of their average fading power or if the number of hops is large.
Journal ArticleDOI
Convergence of iterative decoding
TL;DR: A novel method for visualising the convergence behaviour of iterative decoding schemes is proposed, which describes the flow of extrinsic information through the soft in/soft out decoder.