Variance minimization stochastic power control in CDMA systems

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.