Joint beamforming and power control in downlink multiuser multiple-input multiple-output systems

In this paper, we study joint beamforming and power control for downlink multiple-input multiple-output systems with multiple users and target values for signal-to-interference plus noise ratios SINRs. We formulate this as a constrained optimization problem of minimizing total interference subject to constraints on the beamforming vector norms, target SINRs, and total transmit power. Necessary and sufficient conditions satisfied by the optimal beamformer and power allocation are presented, and a new algorithm for joint beamforming and power control is proposed. This adapts the beamforming vectors and transmit powers incrementally, and it stops when the specified SINR targets are achieved with minimum powers. The proposed algorithm is illustrated with numerical results obtained from simulations, which study its convergence and compare it with other similar algorithms. Copyright © 2013 John Wiley & Sons, Ltd.

[1]  Robert W. Heath,et al.  An overview of limited feedback in wireless communication systems , 2008, IEEE Journal on Selected Areas in Communications.

[2]  B.D. Rao,et al.  A simple joint beamforming and power control algorithm for multi-user MIMO wireless networks , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[3]  Otilia Popescu,et al.  Game-Theoretic Approach to Joint Transmitter Adaptation and Power Control in Wireless Systems , 2010, IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics).

[4]  Yi Zeng,et al.  Joint transmit beamforming and power control in multi-user MIMO downlink using a game theoretic approach , 2007 .

[5]  Leandros Tassiulas,et al.  Joint optimal power control and beamforming in wireless networks using antenna arrays , 1998, IEEE Trans. Commun..

[6]  Lutz H.-J. Lampe,et al.  Multiple-antenna techniques for wireless communications - a comprehensive literature survey , 2009, IEEE Communications Surveys & Tutorials.

[7]  Mohammad Saquib,et al.  Joint Transmitter-Receiver Optimization in the Downlink CDMA Systems , 2002, EURASIP J. Adv. Signal Process..

[8]  R. Sundaram.  A First Course in Optimization Theory: Optimization in ℝ n , 1996 .

[9]  Guoxiang Gu,et al.  Design of optimal precoders for MIMO channels , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[10]  Leandros Tassiulas,et al.  Transmit beamforming and power control for cellular wireless systems , 1998, IEEE J. Sel. Areas Commun..

[11]  Liesbet Van der Perre,et al.  Performance analysis of combined transmit-SC/receive-MRC , 2001, IEEE Trans. Commun..

[12]  Mohammad Saquib,et al.  Pseudo Random Binary Phase Offset Scheme for Multi-Carrier Delay Diversity Modulation , 2011, IEEE Transactions on Wireless Communications.

[13]  Andrea Goldsmith,et al.  Wireless Communications , 2005, 2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS).