GUSS.bbl
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\bibitem{1Gesbert07}
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\bibitem{2Dimic05}
G.~Dimic and N.~D. Sidiropoulos, ``On downlink beamforming with greedy user
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\bibitem{3Yoo06}
T.~Yoo and A.~Goldsmith, ``On the optimality of multiantenna broadcast
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  Commun.}, vol.~24, pp. 528--541, Mar. 2006.

\bibitem{4Shen06}
Z.~K. Shen, R.~H. Chen, J.~G. Andrews, R.~W. Health, and B.~L. Evans, ``Low
  complexity user selection algorithms for multiuser mimo systems with block
  diagonalization,'' \emph{IEEE Trans. Signal Process.}, vol.~54, pp.
  3658--3663, Sep. 2006.

\bibitem{5Wang08}
J.~Q. Wang, D.~J. Love, and M.~D. Zoltowski, ``User selection with zero-forcing
  beamforming achieves the asymptotically optimal sum rate,'' \emph{IEEE Trans.
  Signal Process.}, vol.~56, pp. 3713--3726, Aug. 2008.

\bibitem{6Costa83}
M.~Costa, ``Writing on dirty paper,'' \emph{IEEE Trans. Inf. Theory}, vol.~29,
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\bibitem{7Caire03}
G.~Caire and S.~Shamai, ``On the achievable throughput of a multiantenna
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  1691--1706, Jul. 2003.

\bibitem{8Vishwanath03}
S.~Vishwanath, N.~Jindal, and A.~G. Goldsmith, ``Duality, achievable rates, and
  sum-rate capacity of gaussian mimo broadcast channels,'' \emph{IEEE Trans.
  Inf. Theory}, vol.~49, pp. 2658--2668, Oct. 2003.

\bibitem{9Yu04}
W.~Yu and J.~M. Cioffi, ``Sum capacity of gaussian vector broadcast channels,''
  \emph{IEEE Trans. Inf. Theory}, vol.~50, pp. 1875--1892, Sep. 2004.

\bibitem{10Viswanath03}
P.~Viswanath and D.~N.~C. Tse, ``Sum capacity of the vector gaussian broadcast
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  vol.~49, pp. 1912--1921, Aug. 2003.

\bibitem{11Choi04}
L.~U. Choi and R.~D. Murch, ``A transmit preprocessing technique for multiuser
  mimo systems using a decomposition approach,'' \emph{IEEE Trans. Wireless
  Commun.}, vol.~3, pp. 20--24, Jan. 2004.

\bibitem{12Wiesel08}
A.~Wiesel, Y.~C. Eldar, and S.~Shamai, ``Zero-forcing precoding and generalized
  inverses,'' \emph{IEEE Trans. Signal Process.}, vol.~56, pp. 4409--4418, Sep.
  2008.

\bibitem{13Spencer04}
Q.~H. Spencer, A.~L. Swindlehurst, and M.~Haardt, ``Zero-forcing methods for
  downlink spatial multiplexing in multiuser mimo channels,'' \emph{IEEE Trans.
  Signal Process.}, vol.~52, pp. 461--471, Feb. 2004.

\bibitem{14Peel05}
C.~B. Peel, B.~M. Hochwald, and A.~L. Swindlehurst, ``A vector-perturbation
  technique for near-capacity multiantenna multiuser communication - part i:
  Channel inversion and regularization,'' \emph{IEEE Trans. Commun.}, vol.~53,
  pp. 195--202, Jan. 2005.

\bibitem{15Haustein02}
T.~Haustein, C.~von Helmolt, E.~Jorswieck, V.~Jungnickel, and V.~Pohl,
  ``Performance of mimo systems with channel inversion,'' in \emph{55st IEEE
  Vehicular Technology Conference}, May 2002, pp. 35--39.

\bibitem{16Akhlaghi06}
S.~Akhlaghi, A.~K. Khandani, and A.~Falahati, ``User selection and signaling
  over time-varying mimo broadcast channels,'' in \emph{23rd Biennial Symposium
  on Communications}, May 2006, pp. 31--34.

\bibitem{17Jin11}
L.~Jin, X.~Gu, and Z.~Hu, ``Low-complexity scheduling strategy for wireless
  multiuser multiple-input multiple-output downlink system,'' \emph{IET
  Commun.}, vol.~5, pp. 990--995, May 2011.

\bibitem{18Meyer01}
C.~D. Meyer, \emph{Matrix analysis and applied linear algebra}.\hskip 1em plus
  0.5em minus 0.4em\relax SIAM: Society for Industrial and Applied Mathematics,
  2001.

\bibitem{19Tse05}
D.~Tse and P.~Viswanath, \emph{Fundamentals of Wireless Communication}.\hskip
  1em plus 0.5em minus 0.4em\relax Cambridge University Press, 2005.

\bibitem{20Huang12}
S.~Huang, H.~Yin, J.~Wu, and V.~C.~M. Leung, ``Decremental user selection for
  massive multi-user mimo downlink with zero-forcing beamforming,''
  \emph{Submitted to IEEE Wireless Commun. Lett.}

\end{thebibliography}
