Title :
Predictive closed-loop power control for frequency-division duplex wireless systems
Author :
Ionescu, D. Mihai ; Boariu, Adrian
Author_Institution :
Nokia Inc., Irving, TX, USA
fDate :
6/1/2001 12:00:00 AM
Abstract :
A novel method for performing uplink closed-loop power control is proposed, namely with uplink prediction and downlink-derived predictor coefficients. The lack of correlation between the fading processes on uplink and downlink (due to frequency division duplex and frequency selective fading) is circumvented by using the uplink fading history, together with a set of link-independent, autoregressive coefficients.
Keywords :
autoregressive processes; closed loop systems; fading channels; frequency division multiplexing; mobile radio; multipath channels; power control; predictive control; radio links; telecommunication control; FDD wireless systems; autoregressive coefficients; downlink-derived predictor coefficients; fading processes; frequency-division duplex wireless systems; mobile radio channel; predictive closed-loop power control; uplink prediction; Bandwidth; Coherence; Downlink; Fading; Fluctuations; Frequency conversion; History; Land mobile radio; Power control; Prediction methods;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.929602
