Title :
Variance minimization stochastic power control in CDMA systems
Author :
Qian, Lijun ; Gajic, Zoran
Author_Institution :
Lucent Technol. Bell Labs., Murray Hill, NJ, USA
Abstract :
In this paper, a stochastic uplink power control problem is considered for CDMA systems. A distributed algorithm is proposed based on stochastic linear quadratic optimal control theory assuming SIR measurements contain white noise. The proposed scheme minimizes the sum of the variance of the mobile´s transmission power and the variance of SIR error, with guaranteed stability. Simulation results indicate the effectiveness of the proposed algorithm.
Keywords :
cellular radio; code division multiple access; linear quadratic control; minimisation; optimal control; parallel algorithms; power control; stochastic processes; telecommunication control; CDMA systems; SIR measurements; distributed algorithm; simulation results; stochastic linear quadratic optimal control theory; uplink; variance minimization stochastic power control; white noise; Base stations; Interference; Multiaccess communication; Noise measurement; Optimal control; Power control; Stochastic processes; Stochastic resonance; Stochastic systems; White noise;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997151
