Next Article in Journal
Efficient AoA-Based Wireless Indoor Localization for Hospital Outpatients Using Mobile Devices
Previous Article in Journal
Differentially Private and Skew-Aware Spatial Decompositions for Mobile Crowdsensing
Previous Article in Special Issue
Overlay Virtualized Wireless Sensor Networks for Application in Industrial Internet of Things: A Review
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(11), 3697; https://doi.org/10.3390/s18113697

Data Collection Based on Opportunistic Node Connections in Wireless Sensor Networks

1
Department of Computer Science and Engineering, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
2
Shanghai Key Lab of Modern Optical Systems, Shanghai 20093, China
3
Public Experiment Center, University of Shanghai for Science and Technology, Shanghai 200093, China
*
Author to whom correspondence should be addressed.
Received: 12 August 2018 / Revised: 7 October 2018 / Accepted: 18 October 2018 / Published: 30 October 2018
(This article belongs to the Special Issue Smart Industrial Wireless Sensor Networks)
Full-Text   |   PDF [3172 KB, uploaded 4 November 2018]   |  

Abstract

The working–sleeping cycle strategy used for sensor nodes with limited power supply in wireless sensor networks can effectively save their energy, but also causes opportunistic node connections due to the intermittent communication mode, which can affect the reliability of data transmission. To address this problem, a data collection scheme based on opportunistic node connections is proposed to achieve efficient data collection in a network with a mobile sink. In this scheme, the mobile sink first broadcasts a tag message to start a data collection period, and all nodes that receive this message will use the probe message to forward their own source information to the mobile sink. On receiving these probe messages, the mobile sink then constructs an opportunistic connection random graph by analyzing the source information included in them, and calculates the optimal path from itself to each node in this random graph, therefore a spanning tree could be generated with the mobile sink play as the root node, finally, it broadcasts this spanning tree so that each node could obtain an optimal path from itself to the mobile sink to forward the sensing data. In addition, a routing protocol that adapts to different nodes operating statuses is proposed to improve the reliability of data transmission. Simulation results show that the proposed scheme works better concerning the packet delivery rate, energy consumption and network lifetime. View Full-Text
Keywords: working–sleeping cycle strategy; wireless sensor networks; opportunistic node connections; random graph working–sleeping cycle strategy; wireless sensor networks; opportunistic node connections; random graph
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Yang, G.; Peng, Z.; He, X. Data Collection Based on Opportunistic Node Connections in Wireless Sensor Networks. Sensors 2018, 18, 3697.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top