Cooperation strategies for the butterfly network: Neutralization, feedback, and computation

A butterfly network (BFN) consisting of 2 source nodes, 2 destination nodes, and a relay, with relay-source feedback is considered. Transmission schemes are proposed for this setup, which exploit feedback based on compute-forward using nested-lattice codes. A novel nested-lattice interference neutra...

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Bibliographic Details
Main Authors: Chaaban, Anas, Sezgin, A., Tuninetti, D.
Format: Conference Proceeding
Language:English
Online Access:Request full text
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Summary:A butterfly network (BFN) consisting of 2 source nodes, 2 destination nodes, and a relay, with relay-source feedback is considered. Transmission schemes are proposed for this setup, which exploit feedback based on compute-forward using nested-lattice codes. A novel nested-lattice interference neutralization strategy is also proposed. The performance of these schemes is compared and discussed, and it is shown that these schemes can provide net-gain, i.e., the gain in the sum-capacity gain is larger than the number of feedback bits invested.
ISSN:1058-6393
2576-2303
DOI:10.1109/ACSSC.2012.6489334