Sensors | |
T-L Plane Abstraction-Based Energy-Efficient Real-Time Scheduling for Multi-Core Wireless Sensors | |
Sun-Ro Lee1  Chan-Gun Lee1  Youngmin Kim1  Ki-Seong Lee1  Ngoc-Son Pham2  | |
[1] Department of Computer Science and Engineering, Chung-Ang University, Heuksuk-ro 84, Dongjak-gu, Seoul 156-756, Korea;School of Electrical and Electronics Engineering, Chung-Ang University, Heuksuk-ro 84, Dongjak-gu, Seoul 156-756, Korea; | |
关键词: energy efficiency; wireless sensor node; T-L plane; real-time scheduling; DPM; | |
DOI : 10.3390/s16071054 | |
来源: DOAJ |
【 摘 要 】
Energy efficiency is considered as a critical requirement for wireless sensor networks. As more wireless sensor nodes are equipped with multi-cores, there are emerging needs for energy-efficient real-time scheduling algorithms. The T-L plane-based scheme is known to be an optimal global scheduling technique for periodic real-time tasks on multi-cores. Unfortunately, there has been a scarcity of studies on extending T-L plane-based scheduling algorithms to exploit energy-saving techniques. In this paper, we propose a new T-L plane-based algorithm enabling energy-efficient real-time scheduling on multi-core sensor nodes with dynamic power management (DPM). Our approach addresses the overhead of processor mode transitions and reduces fragmentations of the idle time, which are inherent in T-L plane-based algorithms. Our experimental results show the effectiveness of the proposed algorithm compared to other energy-aware scheduling methods on T-L plane abstraction.
【 授权许可】
Unknown