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

fYear

2009

fDate

24-26 June 2009

Firstpage

280

Lastpage

285

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MED.2009.5164553

Filename

5164553