Interference Alignment and the Degrees of Freedom for the K User Interference Channel

@article{Cadambe2007InterferenceAA,
  title={Interference Alignment and the Degrees of Freedom for the K User Interference Channel},
  author={Viveck R. Cadambe and Syed Ali Jafar},
  journal={CoRR},
  year={2007},
  volume={abs/0707.0323}
}
While the best known outerbound for the K user interference channel states that there cannot be more than K/2 degrees of freedom, it has been conjectured that in general the constant interference channel with any number of users has only one degree of freedom. In this paper, we explore the spatial degrees of freedom per orthogonal time and frequency dimension for the K user wireless interference channel where the channel coefficients take distinct values across frequency slots but are fixed in… CONTINUE READING

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