Optimal Transmit Strategies in Multi-Antenna Bidirectional Relaying

@article{Oechtering2007OptimalTS,
  title={Optimal Transmit Strategies in Multi-Antenna Bidirectional Relaying},
  author={Tobias J. Oechtering and Holger Boche},
  journal={2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07},
  year={2007},
  volume={3},
  pages={III-145-III-148}
}
We study the transmit strategies in a MIMO bidirectional relaying scenario with individual power constraints. In two phases a half-duplex relay node decodes-and-forwards the signals of two nodes. Each node has multiple antennas. We deduce the transmit strategy in the first phase from the general Gaussian MIMO-MAC. Since each node knows a priori the interference of its own message in the second phase interference-free reception is achieved. Therefore, the optimal relay transmit strategy is given… CONTINUE READING
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