Weighted Sum Rate Maximization for Multiuser Multirelay MIMO Systems

@article{Choi2013WeightedSR,
  title={Weighted Sum Rate Maximization for Multiuser Multirelay MIMO Systems},
  author={Hyun-Joo Choi and Kyoung-Jae Lee and Chang-Ick Song and Hwangjun Song and Inkyu Lee},
  journal={IEEE Transactions on Vehicular Technology},
  year={2013},
  volume={62},
  pages={885-889}
}
In this paper, we study a filter design that maximizes the weighted sum rate (WSR) in multiuser multirelay systems equipped with multiple antennas at each node. Since this problem is generally nonconvex, it is quite complicated to analytically find a solution. Hence, we transform the WSR maximization problem to an equivalent weighted sum mean-square-error (WSMSE) minimization problem, which is more amenable. Then, we identify the filters at the base station and the relays for minimizing the… CONTINUE READING
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