Beyond One-Way Communication: Degrees of Freedom of Multi-Way Relay MIMO Interference Networks

@article{Wang2016BeyondOC,
  title={Beyond One-Way Communication: Degrees of Freedom of Multi-Way Relay MIMO Interference Networks},
  author={Chenwei Wang},
  journal={IEEE Transactions on Wireless Communications},
  year={2016},
  volume={15},
  pages={7174-7186}
}
We characterize the degrees of freedom (DoFs) of a multiway relay wireless network consisting of four user nodes, each with M antennas, and one N-antenna relay node. Each user node sends one independent message to each of the other users, and there are no direct links between any two user nodes. For this network, we show that the symmetric DoF value per message is given by max(min((M/3), (N/7)), min(((2M)/7), (N/6))) normalized by space dimensions, i.e., piecewise linear depending on M and N… CONTINUE READING
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