Title :
Modified generalized predictive power control for wireless networked systems with random delays
Author :
Han, Cunwu ; Sun, Dehui ; Li, Zhijun
Author_Institution :
Beijing Key Lab. of Fieldbus Technol. & Autom., North China Univ. of Technol., Beijing, China
Abstract :
This paper investigates power control of CDMA wireless networked systems with random transmission time delays in both downlink and uplink wireless communication channels. To deal with the random time delays, a novel power control algorithm is presented based on the modified generalized predictive control (M-GPC). Different from the conventional generalized predictive control (GPC) in which only the first element in control sequences is used, the M-GPC employs the whole control sequences to compensate for the random transmission time delays. The stability of the closed-loop system is analyzed. Simulation results are given to demonstrate the effectiveness of the proposed algorithm.
Keywords :
closed loop systems; code division multiple access; delays; power control; predictive control; radio networks; stability; telecommunication control; CDMA wireless network; closed loop system stability; generalized predictive control; modified generalized predictive power control; random delays; random transmission time delay; wireless networked systems; Delay; Delay effects; Fading; Mobile communication; Multiaccess communication; Power control; Transmitters;
Conference_Titel :
Automation Science and Engineering (CASE), 2010 IEEE Conference on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-5447-1
DOI :
10.1109/COASE.2010.5584093
