An energy-efficient real-time scheduling scheme on dual-channel networks

The recent evolution of wireless sensor networks have yielded a demand to improve energy-efficient scheduling algorithms and energy-efficient medium access protocols. This paper proposes an energy-efficient real-time scheduling scheme that reduces power consumption and network errors on dual channel networks. The proposed scheme is based on a dynamic modulation scaling scheme which can scale the number of bits per symbol and a switching scheme which can swap the polling schedule between channels. Built on top of EDF scheduling policy, the proposed scheme enhances the power performance without violating the constraints of real-time streams. The simulation results show that the proposed scheme enhances fault tolerance and reduces power consumption. Key words: Low power, real-time scheduling, dynamic modulation scaling, reclaiming scheme, EDF, dual-channel networks

• Type: Journal
• Year: 2008
• Where: ISCI
• Authors: Mikyung Kang, Dong-In Kang, Jinwoo Suh, Junghoon Lee
• Keywords: ISCI 2008, Modulation Scaling Scheme, Power Consumption, Real-time Scheduling Scheme