This paper proposes a distributed power control framework for wireless communication networks that is able to provide a flexible QoS with the introduction of a dynamic target QoS into a conventional (fixed) target tracking power control algorithm. The target QoS of individual terminals is automatically updated according to a given performance criterion. The distributed power control is formulated as a linear quadratic regulator (LQR) problem, where system operating points are met according to channel quality and the choice of key parameters. Effectiveness of the LQR-based power control is analyzed and the influence of such parameters on the algorithm's performance is investigated with the help of computer experiments.
Published in:
Control and Automation, 2009. MED '09. 17th Mediterranean Conference on
Date of Conference: 24-26 June 2009