Optimal beamforming in wireless multiuser MIMO-relay networks

  title={Optimal beamforming in wireless multiuser MIMO-relay networks},
  author={Mohammad-Hossein Golbon-Haghighi and Mojtaba Shirazi and Behrad Mahboobi and Mehrdad Ardebilipour},
  journal={2013 21st Iranian Conference on Electrical Engineering (ICEE)},
This paper deals with optimal beamforming in wireless multiple-input-multiple-output (MIMO) relay networks that involves multiple concurrent source-destination pairs with imperfect channel state information (CSI) at relays. Our aim is the optimization of the MIMO relay weights that minimize the total relay transmit power subject to signal-to-interference-plus-noise ratio (SINR) of all destinations to be kept above a certain threshold. Since power minimization is a non-convex quadratically… CONTINUE READING


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