4.7 Article

Energy-Aware Routing for Software-Defined Multihop Wireless Sensor Networks

期刊

IEEE SENSORS JOURNAL
卷 21, 期 8, 页码 10174-10182

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2021.3059789

关键词

Sensors; Wireless sensor networks; Routing; Industrial Internet of Things; Energy consumption; Wireless communication; Network topology; Centralized routing; Industrial Internet of Things; network lifetime; software defined wireless sensor networks; software-defined routing; wireless sensor networks

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This paper proposes an energy-aware routing algorithm and a control overhead reduction technique for software-defined multihop wireless sensor networks to prolong network lifetime. By leveraging a global view to balance network energy and optimizing key functions, the proposed approach effectively extends network lifetime and reduces control overhead.
In this paper, we propose an energy-aware routing algorithm and a control overhead reduction technique for prolonging the network lifetime of software-defined multihop wireless sensor networks (SDWSNs). This is an effort to optimize the energy consumption of WSNs that provide services to the Industrial Internet of Things (IIoT). A centralized controller grants a global view of the sensor network by introducing extra control overhead in the network, but this leads to extra energy costs. However, our new algorithm takes advantage of this global view and balances the network energy by selecting paths with the highest remaining energy level among multiple paths for each sensor node. We also identify key functions draining energy from the SDWSN and minimize their impact by implementing a data packet aggregation function, and minimizing the control overhead by keeping track of the sensor nodes; routing tables using a simple checksum function. We show that the proposed approach prolongs the network lifetime of the WSN by 6.5 on average compared to the standard shortest-path algorithm, and that the control overhead is reduced by approximately 12 while still maintaining a very high packet delivery ratio.

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