Joint beamforming and power control in downlink multiuser MIMO systems

Authors:
Shiny Abraham;Dimitrie C. Popescu;Octavia A. Dobre
Affiliations:
Department of Electrical and Computer Engineering, Old Dominion University;Department of Electrical and Computer Engineering, Old Dominion University;Faculty of Engineering and Applied Science, Memorial University of Newfoundland, Canada
Venue:
RWS'10 Proceedings of the 2010 IEEE conference on Radio and wireless symposium
Year:
2010

Citing 3
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Abstract

In this paper we discuss joint beamforming and power control for downlink multiuser MIMO systems with target signal-to-interference+noise ratios (SINR) constraints. We derive necessary conditions for minimizing total interference at downlink receivers and present an algorithm which adapts the beamforming vectors and powers incrementally to meet specified SINR targets with minimum powers. The proposed algorithm is illustrated with numerical examples obtained from simulations.