Title :
Robust Power Control for CDMA Cellular Communication Systems via H2 Optimal Theory
Author :
Li, Chong ; Duan, Lingjie ; Dong, Xue
Author_Institution :
Dept. of Electron. & Inf. Eng., Harbin Inst. of Technol., Harbin
Abstract :
In this paper, a lead compensator is proposed for compensating round-trip delay of direct-sequence code-division multiple-access (DS-CDMA) cellular mobile radio systems. Furthermore, in addition to the delay compensation, a disturbance rejection filter is designed to minimize the effect of uncertain noise and interference to track a desired signal to interference and noise ratio (SINR). The two-step power control design is achieved by the H2 optimal approximation theory using the genetic algorithm. To confirm the performance of the proposed method, several simulation results are given in comparison with other methods.
Keywords :
Hinfin control; Hinfin optimisation; cellular radio; code division multiple access; filtering theory; genetic algorithms; interference suppression; power control; radiofrequency interference; spread spectrum communication; telecommunication control; CDMA cellular mobile radio systems; H2 optimal approximation theory; direct-sequence code-division multiple-access; disturbance rejection filter; genetic algorithm; interference minimization; lead compensator; round-trip delay compensation; two-step power control design; Added delay; Communication systems; Delay effects; Hydrogen; Interference; Land mobile radio; Multiaccess communication; Power control; Robust control; Signal to noise ratio;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.38
