On channel output feedback in deterministic interference channels

@article{Sahai2009OnCO,
  title={On channel output feedback in deterministic interference channels},
  author={Achaleshwar Sahai and Vaneet Aggarwal and Melda Yuksel and Ashutosh Sabharwal},
  journal={2009 IEEE Information Theory Workshop},
  year={2009},
  pages={298-302}
}
In this paper, we study the effect of channel output feedback on the sum capacity in a two-user symmetric deterministic interference channel. We find that having a single feedback link from one of the receivers to its own transmitter results in the same sum capacity as having a total of 4 feedback links from both the receivers to both the transmitters. Hence, from the sum capacity point of view, the three additional feedback links are not helpful. We also consider a half-duplex feedback model… CONTINUE READING
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