Joint Beamforming and Power Control for Multiantenna Relay Broadcast Channel With QoS Constraints

  title={Joint Beamforming and Power Control for Multiantenna Relay Broadcast Channel With QoS Constraints},
  author={Rui Zhang and Chin Choy Chai and Ying-Chang Liang},
  journal={IEEE Transactions on Signal Processing},
This paper studies the two-hop relay broadcast channel (BC) for a relay-assisted wireless cellular network where the multiuser independent downlink signals from the base station (BS) are first transmitted to a fixed relay station (RS), and then forwarded by the RS to multiple mobile users. Assuming both the BS and RS are equipped with multiantennas, we study the joint optimization of linear beamforming and power control at the BS and RS so as to minimize their weighted sum-power consumption… CONTINUE READING
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Convex Optimization

  • S. Boyd, L. Vandenberghe
  • Cambridge, U.K.: Cambridge Univ. Press
  • 2004
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