- Distributed Real-Time Systems with Minimal Energy Consumption:
Analysis and Synthesis
- Project no: 0005-05
- Krzysztof Kuchcinski
- Department of Computer Science, Lund Institute of Technology
- Application, curriculum vitae, support letter from Axis Communications AB.
- Comments by evaluators.
- Support: 1 PhD student at 80% activity for 2 years decided 00-06-16.
- Reports: First-year-report 2001, Final report 2003
- Stefan Sandström, email@example.com
- Axis Communications AB, Scheelevägen 34, 223 63 LUND
- Project: Distributed Real-Time Systems with Minimal Energy Consumption:
Analysis and Synthesis
Much emphasis in real-time research is put on timing issues. Although timing is what characterizes a real-time system, increasingly important aspects are energy and power consumptions. Lower power consumption
yields lower fabrication cost - cheaper package, cheaper power sources and higher reliability. Lower
energy consumption yields lower operational costs for battery operated systems or longer lifespan. These
two issues are important in all types of applications, but especially for mobile computing & communication,
deep-space exploration and medical implants.
The typical approach to power optimization in industry today is centered on performance-power consumption
trade-off. High-performance systems are usually seen as energy and power eager, while low-power
systems are perceived as being of low performance. Although performance is important, real-time
applications mostly require predictability while minimizing other aspects influencing fabrication and operational
cost. Resource cost, power/energy consumption together with reliability and maintainability are the
factors which enforce the product cost.
In this context, there is a need for methods which target power and energy consumption minimization,
while fulfilling certain timing constraints. Moreover, these methods are required throughout the whole
design process. Approaches for power and energy reduction at lower abstraction levels have already been
developed. At higher levels, such as system-level, there are rather few methods addressing these issues,
and even fewer which take into account the specific features of real-time systems.
The goal of this project is to develop methods for designing real-time systems with low energy and low power consumption. The design methodology is focused from the start, at system level, on energy and power issues, while fulfilling the timing requirements.