author = {R. B\"{o}hnke and K.-D. Kammeyer},
  year = {2008},
  month = {Jan},
  title = {Weighted Sum Rate Maximization for MIMO-OFDM Systems with Linear and Dirty Paper Precoding},
  URL = {http://www.mk.tu-berlin.de/scc08/},
  address={Ulm, Germany},
  abstract={Many sophisticated resource allocation strategies are based on the maximization of the weighted sum of data ratesfor a given transmit power. While this problem can be easily solved for orthogonal multiple access schemes likeTDMA, it is much more complicated if users are separated in space using multiple antennas at the base station dueto the mutual coupling. In this paper, we propose a new projected conjugate gradient algorithm for the optimizationof the transmit filters. The power constraint is taken into account in the calculation of the search direction byprojecting the gradient onto a tangent hyperplane. Our method features excellent convergence properties whenapplied to dirty paper precoding, and it may also be used for the optimization of linear precoders.},
  booktitle={7th International ITG Conference on Source and Channel Coding (SCC 08)}