The Capacity Region of the MIMO Interference Channel and Its Reciprocity to Within a Constant Gap

@article{Karmakar2013TheCR,
  title={The Capacity Region of the MIMO Interference Channel and Its Reciprocity to Within a Constant Gap},
  author={Sanjay Karmakar and Mahesh K. Varanasi},
  journal={IEEE Transactions on Information Theory},
  year={2013},
  volume={59},
  pages={4781-4797}
}
The capacity region of the two-user multi-input multioutput (MIMO) Gaussian interference channel (IC) is characterized to within a constant gap that is independent of the channel matrices for the general case of the MIMO IC with an arbitrary number of antennas at each node. An achievable rate region and an outer bound to the capacity region of a class of interference channels were obtained in previous work by Telatar and Tse as unions over all possible input distributions. In contrast to that… CONTINUE READING
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