A Beaconless Asymmetric Energy-Efficient Time Synchronization Scheme for Resource-Constrained Multi-Hop Wireless Sensor Networks

Huan, Xintao ORCID: 0000-0002-6114-4994, Kim, Kyeong Soo, Lee, Sanghyuk, Lim, Eng Gee ORCID: 0000-0003-0199-7386 and Marshall, Alan ORCID: 0000-0002-8058-5242 (2020) A Beaconless Asymmetric Energy-Efficient Time Synchronization Scheme for Resource-Constrained Multi-Hop Wireless Sensor Networks. IEEE TRANSACTIONS ON COMMUNICATIONS, 68 (3). pp. 1716-1730.

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Abstract

The ever-increasing number of WSN deployments based on a large number of battery-powered, low-cost sensor nodes, which are limited in their computing and power resources, puts the focus of WSN time synchronization research on three major aspects, i.e., accuracy, energy consumption and computational complexity. In the literature, the latter two aspects have not received much attention compared to the accuracy of WSN time synchronization. Especially in multi-hop WSNs, intermediate gateway nodes are overloaded with tasks for not only relaying messages but also a variety of computations for their offspring nodes as well as themselves. Therefore, not only minimizing the energy consumption but also lowering the computational complexity while maintaining the synchronization accuracy is crucial to the design of time synchronization schemes for resource-constrained sensor nodes. In this paper, focusing on the three aspects of WSN time synchronization, we introduce a framework of reverse asymmetric time synchronization for resource-constrained multi-hop WSNs and propose a beaconless energy-efficient time synchronization scheme based on reverse one-way message dissemination. Experimental results with a WSN testbed based on TelosB motes running TinyOS demonstrate that the proposed scheme conserves up to 95% energy consumption compared to the flooding time synchronization protocol while achieving microsecond-level synchronization accuracy.

Item Type:	Article
Additional Information:	12 pages, 16 figures
Uncontrolled Keywords:	Synchronization, Wireless sensor networks, Clocks, Energy consumption, Computational complexity, Protocols, Logic gates, Beaconless time synchronization, energy efficiency, reverse asymmetric time synchronization, wireless sensor networks
Divisions:	Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User:	Symplectic Admin
Date Deposited:	19 May 2021 11:27
Last Modified:	17 Mar 2024 04:26
DOI:	10.1109/TCOMM.2019.2960344
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3119915

Available Versions of this Item

• A Beaconless Asymmetric Energy-Efficient Time Synchronization Scheme for Resource-Constrained Multi-Hop Wireless Sensor Networks. (deposited 15 Aug 2019 14:44)
  • A Beaconless Asymmetric Energy-Efficient Time Synchronization Scheme for Resource-Constrained Multi-Hop Wireless Sensor Networks. (deposited 11 Dec 2019 13:01)
    • A Beaconless Asymmetric Energy-Efficient Time Synchronization Scheme for Resource-Constrained Multi-Hop Wireless Sensor Networks. (deposited 19 May 2021 11:27) [Currently Displayed]