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Sensors 2017, 17(6), 1320; doi:10.3390/s17061320

A Reliable Data Transmission Model for IEEE 802.15.4e Enabled Wireless Sensor Network under WiFi Interference

1
Department of Computer Science and Information Engineering, Chang Gung University, Taoyuan 33302, Taiwan
2
Department of Cardiology, Chang Gung Memorial Hospital, Linkou 33305, Taiwan
3
Department of Electrical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
4
Department of Electrical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editors: Jaime Lloret Mauri and Guangjie Han
Received: 6 April 2017 / Revised: 23 May 2017 / Accepted: 5 June 2017 / Published: 7 June 2017
(This article belongs to the Special Issue Smart Communication Protocols and Algorithms for Sensor Networks)

Abstract

The IEEE 802.15.4e standard proposes Medium Access Control (MAC) to support collision-free wireless channel access mechanisms for industrial, commercial and healthcare applications. However, unnecessary wastage of energy and bandwidth consumption occur due to inefficient backoff management and collisions. In this paper, a new channel access mechanism is designed for the buffer constraint sensor devices to reduce the packet drop rate, energy consumption and collisions. In order to avoid collision due to the hidden terminal problem, a new frame structure is designed for the data transmission. A new superframe structure is proposed to mitigate the problems due to WiFi and ZigBee interference. A modified superframe structure with a new retransmission opportunity for failure devices is proposed to reduce the collisions and retransmission delay with high reliability. Performance evaluation and validation of our scheme indicate that the packet drop rate, throughput, reliability, energy consumption and average delay of the nodes can be improved significantly. View Full-Text
Keywords: superframe; IEEE 802.15.4e; wireless sensor networks; performance analysis superframe; IEEE 802.15.4e; wireless sensor networks; performance analysis
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MDPI and ACS Style

Sahoo, P.K.; Pattanaik, S.R.; Wu, S.-L. A Reliable Data Transmission Model for IEEE 802.15.4e Enabled Wireless Sensor Network under WiFi Interference. Sensors 2017, 17, 1320.

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