Title :
A distributed fixed-step power control for time-varying systems
Author :
Zhang, Huanshui ; Chen, Chung Shue ; Wong, Wing Shing
Abstract :
This paper deals with a class of power control problems where the system link gains are assumed to be time varying and SIR estimates are allowed to be corrupted with bounded noises. A simple distributed algorithm of fixed-step power control is devised and the feedback requires only local information. As a generalization of the power control algorithm proposed by Sung and Wong, we have obtained a more robust solution which can handle time varying link gains and measurement noises. Convergence of the new algorithm is analyzed and numerical studies show that it is effective.
Keywords :
cellular radio; distributed control; feedback; power control; radio links; robust control; telecommunication control; time-varying systems; distributed algorithm; distributed fixed-step power control; feedback information; robust solution; signal-to-interference ratio; time-varying systems; Distributed algorithms; Feedback; Gain measurement; Noise measurement; Noise robustness; Power control; Power measurement; Robust control; Time measurement; Time varying systems;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1494849
