Minimal Transmit Power in Parallel Vector Broadcast Channels With Linear Precoding

@article{Hellings2012MinimalTP,
  title={Minimal Transmit Power in Parallel Vector Broadcast Channels With Linear Precoding},
  author={Christoph Hellings and Michael Joham and Maximilian Riemensberger and Wolfgang Utschick},
  journal={IEEE Transactions on Signal Processing},
  year={2012},
  volume={60},
  pages={1890-1898}
}
We consider the communication over a set of parallel multiple-input single-output (MISO) broadcast channels with separate linear precoding on each of them. In this setup, we study the problem of fulfilling per-user quality of service constraints, expressed in terms of rates, using minimal transmit power. By means of a dual decomposition approach and a branch-and-bound algorithm solving the arising nonconvex subproblems, we find the so far unknown globally optimal solution for the case of linear… CONTINUE READING

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