Abstract
Minimizing energy consumption is a key issue in designing real-time applications on wireless embedded systems. While a lot of work has been done to manage energy consumption on single processor real-time system, few work addresses network-wide energy consumption management for real-time tasks. Moreover, existing work on network-wide energy consumption assumes that the underlying network is always connected, which is not consistent with the practice in which wireless nodes often turn off their network interfaces in a sleep schedule to reduce energy consumption. In this paper, we propose solutions to minimize network-wide energy consumption for real-time tasks with precedence constraints executing on wireless embedded systems. Our solutions take the radio sleep scheduling of wireless nodes into account when adjusting the execution modes of processors. We also propose a runtime dynamic energy management scheme to further reduce energy consumption while guaranteeing the timing constraint. The experiments show that our approach significantly reduces total energy consumption compared with the previous work.
Original language | English |
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Title of host publication | Proceedings - 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2008 |
Pages | 237-246 |
Number of pages | 10 |
DOIs | |
Publication status | Published - 15 Oct 2008 |
Event | 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2008 - Kaohsiung, Taiwan Duration: 25 Aug 2008 → 27 Aug 2008 |
Conference
Conference | 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2008 |
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Country/Territory | Taiwan |
City | Kaohsiung |
Period | 25/08/08 → 27/08/08 |
ASJC Scopus subject areas
- Computer Science Applications
- Hardware and Architecture
- Control and Systems Engineering
- Electrical and Electronic Engineering