Discrete-time battery models for system-level low-power design
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Energy-efficient soft real-time CPU scheduling for mobile multimedia systems
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
A run-time, feedback-based energy estimation model For embedded devices
CODES+ISSS '06 Proceedings of the 4th international conference on Hardware/software codesign and system synthesis
Battery voltage modeling for portable systems
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Proceedings of the 42nd Annual IEEE/ACM International Symposium on Microarchitecture
CODES/ISSS '10 Proceedings of the eighth IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis
An analytical model for predicting the remaining battery capacity of lithium-ion batteries
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Fine-grained power modeling for smartphones using system call tracing
Proceedings of the sixth conference on Computer systems
Self-constructive high-rate system energy modeling for battery-powered mobile systems
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
Dynamic voltage scaling of OLED displays
Proceedings of the 48th Design Automation Conference
DC–DC Converter-Aware Power Management for Low-Power Embedded Systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
System-Level Online Power Estimation Using an On-Chip Bus Performance Monitoring Unit
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Power conversion efficiency characterization and optimization for smartphones
Proceedings of the 2012 ACM/IEEE international symposium on Low power electronics and design
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A modern smartphone or tablet-PC is typically equipped a high-resolution and large-size display, which is a primary power consumer. In spite of the relatively high power efficiency of organic light emitting diode (OLED) displays, the integrated display sub-system exhibits low energy efficiency due to power losses in the battery and the boost voltage conversion. In this paper, we formulize the system energy efficiency in terms of the battery internal losses as well the converter efficiency considering the OLED power supply condition. We also analyze the effect of recently introduced dynamic (driver) supply voltage scaling technique for OLED displays on the overall system efficiency based on the system-level power profiling result. We introduce the optimal battery setup for different sizes and resolutions of the OLED display for modern smartphones and tablet-PCs.