On the asymptotic optimality of beam-forming in multi-antenna Gaussian multiple access channels

@inproceedings{Rhee2001OnTA,
  title={On the asymptotic optimality of beam-forming in multi-antenna Gaussian multiple access channels},
  author={Wonjong Rhee and John M. Cioffi},
  booktitle={GLOBECOM},
  year={2001}
}