IEEE Transactions on Vehicular Technology · 2003 · 23 citations · 12 references
EngineeringComputer EngineeringElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsChannel ControlChannel EstimationChannel PowerPower ControlPower ManagementWireless Channel ModelingAdaptive Power ControlChannel Estimation For Fading ChannelsFadingPredictive ControlPredictive Power ControlTransmit Power Control
In this paper, we analyze the conventional closed-loop power-control system. We explain that the system behaves essentially as a companded delta modulator and then derive an expression for the power-control error in terms of the channel fading, which suggests methods for reducing the error variance. This is achieved by using a prediction technique for estimating the channel-power fading profile. The prediction module is combined with several proposed schemes for closed-loop power control. The resulting architectures are shown to result in improved performance in simulations.
12