Title :
Robust adaptive power control for cellular communication systems
Author :
Han, Cunwu ; Sun, Dehui ; Xu, Jining ; Cao, Lisha
Author_Institution :
Beijing Key Lab. of Fieldbus Technol. & Autom., North China Univ. of Technol., Beijing, China
Abstract :
Power control is the most important system requirement for code-division multiple-access (CDMA) wireless cellular communication systems. This paper presents a robust adaptive power controller for CDMA systems with unmodeled dynamics and bounded disturbances. Modified least-squares scheme with a relative dead zone is developed to form a novel robust adaptive control algorithm, without much prior knowledge of the system. The simulation results show that the proposed algorithm has better performance than the traditional distributed constrained power control.
Keywords :
adaptive control; cellular radio; code division multiple access; power control; robust control; statistical analysis; CDMA; bounded disturbance; code division multiple access system; dead zone; least square scheme; robust adaptive power control; unmodeled dynamics; wireless cellular communication system; Adaptive systems; Fading; Heuristic algorithms; Multiaccess communication; Power control; Robustness; Robust adaptive control; bounded disturbances; cellular communication systems; power control; unmodeled dynamics;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5553920
