DocumentCode :
3192095
Title :
Adaptive logical control of RF LNA performances for efficient energy consumption
Author :
Khereddine, Rafik ; Abdallah, Louay ; Simeu, Emmanuel ; Mir, Salvador ; Cenni, Fabio
Author_Institution :
TIMA Lab., Grenoble, France
fYear :
2010
fDate :
27-29 Sept. 2010
Firstpage :
161
Lastpage :
166
Abstract :
This paper presents a new approach for controlling power consumption in RF devices. The approach is based on the definition of application-dependent performance modes for power hungry RF circuits and a logical control strategy that adjusts the power supply of each circuit to the mode required by the application. The control strategy uses embedded sensors, a recursive parameter identification approach and regression models for performance prediction, while demanding minimum embedded resources for computation. The control strategy is robust with respect to circuit parametric deviations due to the manufacturing process or ageing mechanisms. The strategy is illustrated for the case of an RF LNA using envelope detectors as embedded sensors. Simulation results of the control strategy at the transistor-level illustrate the energy savings that can be obtained for an example application.
Keywords :
adaptive control; intelligent sensors; low noise amplifiers; parameter estimation; power control; radiofrequency amplifiers; regression analysis; RF LNA; RF devices; adaptive logical control strategy; ageing mechanisms; application-dependent performance modes; efficient energy consumption; embedded sensors; envelope detectors; manufacturing process; power consumption control; power hungry RF circuits; recursive parameter identification approach; regression models; transistor level; Computational modeling; Integrated circuit modeling; Mathematical model; Power supplies; Predictive models; Radio frequency; Sensors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
VLSI System on Chip Conference (VLSI-SoC), 2010 18th IEEE/IFIP
Conference_Location :
Madrid
Print_ISBN :
978-1-4244-6469-2
Type :
conf
DOI :
10.1109/VLSISOC.2010.5642602
Filename :
5642602
Link To Document :
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