Title :
Optimal transmitter beamforming with per-antenna power constraints
Author_Institution :
Samsung Electron., Dallas Technol. Lab., Richardson, TX, USA
Abstract :
Optimal transmitter beamforming with per-antenna power constraints has been a long outstanding problem. In this paper, we derive the necessary and sufficient conditions for optimal single-stream and multi-stream transmitter beamforming with per-antenna power constraints. We also develop iterative algorithms for single-stream and multi-stream transmitter beamforming, and prove the algorithms converge to the optimal solutions.
Keywords :
antenna arrays; array signal processing; iterative methods; radio transmitters; iterative algorithm; necessary condition; optimal transmitter beamforming; per-antenna power constraint; sufficient condition; Antennas; Array signal processing; Equations; Linear programming; Mutual information; Transmitters; Vectors;
Conference_Titel :
Communications (ICC), 2012 IEEE International Conference on
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4577-2052-9
Electronic_ISBN :
1550-3607
DOI :
10.1109/ICC.2012.6364537
