Robust power control for CDMA cellular communication networks using quantitative feedback theory

In this work, a new transmission power control algorithm based on the use of quantitative feedback theory (QFT) is proposed for CDMA wireless cellular networks. The QFT based loop-shaping framework that is considered fully compensates the effect of link round-trip time delay within the network. The design supports predefined levels of performance robustness in the presence of channel uncertainty and signal interference. A novel stability boundary is introduced based on the use of the Jury array that informs the necessary trade-off between disturbance attenuation and system stability. Extensive simulation results are provided that illustrate the effectiveness of the proposed methodology.