Title :
Distributed power control for QoS-flexible services in wireless communication networks
Author :
de S.Chaves, F. ; Abbas-Turki, M. ; Abou-Kandil, H. ; Romano, J.M.T.
Author_Institution :
DSPCom Lab., Univ. of Campinas - UNICAMP, Campinas, Brazil
Abstract :
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.
Keywords :
distributed control; linear quadratic control; power control; quality of service; radio networks; telecommunication control; wireless channels; QoS-flexible service; channel quality; distributed power control; dynamic target QoS; linear quadratic regulator problem; wireless communication network; Adaptive control; Automatic control; Communication system control; Interference; Power control; Programmable control; Quality of service; Target tracking; Wireless communication; Wireless networks; Distributed power control; LQR control; adaptive QoS; wireless systems;
Conference_Titel :
Control and Automation, 2009. MED '09. 17th Mediterranean Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-4684-1
Electronic_ISBN :
978-1-4244-4685-8
DOI :
10.1109/MED.2009.5164553
