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Costa Precoding in One Dimension

Author:
Jinfeng Du   Erik G. Larsson   Mikael Skoglund  


Abstract(summary):

We design an optimum modulator for the Costa (dirty-paper) precoding problem under the constraint of a binary signaling alphabet, and assuming the interference symbols belong to a binary constellation. We evaluate the performance of our technique in terms of the mutual information between the channel input and output, and compare it to that of Tomlinson-Harashima precoding (THP) with optimized parameters. We show that our optimal modulator is always better than THP. In many relevant scenarios, the performance difference is significant.


Page:
IV-717- IV-720


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