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Sensors 2017, 17(1), 168;

A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks

Department of Computer Science and Information Engineering, Chang Gung University, Taoyuan 33302, Taiwan
Department of Electrical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
Department of Cardiology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
Department of Electrical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
Author to whom correspondence should be addressed.
Academic Editor: Mohamed F. Younis
Received: 22 November 2016 / Revised: 6 January 2017 / Accepted: 9 January 2017 / Published: 16 January 2017
(This article belongs to the Section Sensor Networks)
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IEEE 802.15.4e standard proposes Deterministic and Synchronous Multichannel Extension (DSME) mode for wireless sensor networks (WSNs) to support industrial, commercial and health care applications. In this paper, a new channel access scheme and beacon scheduling schemes are designed for the IEEE 802.15.4e enabled WSNs in star topology to reduce the network discovery time and energy consumption. In addition, a new dynamic guaranteed retransmission slot allocation scheme is designed for devices with the failure Guaranteed Time Slot (GTS) transmission to reduce the retransmission delay. To evaluate our schemes, analytical models are designed to analyze the performance of WSNs in terms of reliability, delay, throughput and energy consumption. Our schemes are validated with simulation and analytical results and are observed that simulation results well match with the analytical one. The evaluated results of our designed schemes can improve the reliability, throughput, delay, and energy consumptions significantly. View Full-Text
Keywords: wireless sensor networks; IEEE 802.15.4e; performance analysis; DSME; star topology wireless sensor networks; IEEE 802.15.4e; performance analysis; DSME; star topology

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Sahoo, P.K.; Pattanaik, S.R.; Wu, S.-L. A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks. Sensors 2017, 17, 168.

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