Energy-efficient and low-delay scheduling scheme for low power wireless sensor network with real-time data flows
by Zheng Zhang; Zhenbo Li; Jiapin Chen; Shouwei Hu; Wei Wang
International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), Vol. 22, No. 3, 2016

Abstract: In this paper, we propose an energy-efficient and low-delay scheduling (EELDS) scheme for interruptible preamble sampling-based medium access control (MAC) protocols (e.g., BoX-MAC-2 and X-MAC) in IEEE 802.15.4 wireless sensor network (WSN), which considers energy efficiency while reducing delay and contention in the context of real-time data gathering and remote monitoring applications. It is built on MAC layer and exploits local information to coordinate the MAC schedules of nodes in a slowly-changing topology, just with light overhead. The scheme also considers the adaptation to data aggregation with real-time data flows. Therefore, our scheme allows for much longer network lifetime while satisfying the delay constraints. The implementation and simulation results show the performance of the proposed scheme.

Online publication date: Sat, 16-Jul-2016

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