When Network Coding and Dirty Paper Coding meet in a Cooperative Ad Hoc Network

Details When Network Coding and Dirty Paper Coding meet in a Cooperative Ad Hoc Network When Network Coding and Dirty Paper Coding meet in a Cooperative Ad Hoc Network

2007-07-06

arxiv.org/abs/0707.0978v1

Computer Science

Information Theory

7 pages, 7 figures

Scientific paper

We develop and analyze new cooperative strategies for ad hoc networks that are more spectrally efficient than classical DF cooperative protocols. Using analog network coding, our strategies preserve the practical half-duplex assumption but relax the orthogonality constraint. The introduction of interference due to non-orthogonality is mitigated thanks to precoding, in particular Dirty Paper coding. Combined with smart power allocation, our cooperation strategies allow to save time and lead to more efficient use of bandwidth and to improved network throughput with respect to classical RDF/PDF.

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