International Journal of Internet, Broadcasting and Communication

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Urgency-Aware Adaptive Routing Protocol for Energy-Harvesting Wireless Sensor Networks

  • Kang, Min-Seung (School of Electrical, Electronic and Communication Eng., KOREATECH) ;
  • Park, Hyung-Kun (School of Electrical, Electronic and Communication Eng., KOREATECH)
  • Received : 2021.07.19
  • Accepted : 2021.07.25
  • Published : 2021.08.31
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Abstract

Energy-harvesting wireless sensor networks(EH-WSNs) can collect energy from the environment and overcome the technical limitations of existing power. Since the transmission distance in a wireless sensor network is limited, the data are delivered to the destination node through multi-hop routing. In EH-WSNs, the routing protocol should consider the power situations of nodes, which is determined by the remaining power and energy-harvesting rate. In addition, in applications such as environmental monitoring, when there are urgent data, the routing protocol should be able to transmit it stably and quickly. This paper proposes an adaptive routing protocol that satisfies different requirements of normal and urgent data. To extend network lifetime, the proposed routing protocol reduces power imbalance for normal data and also minimizes transmission latency by controlling the transmission power for urgent data. Simulation results show that the proposed adaptive routing can improve network lifetime by mitigating the power imbalance and greatly reduce the transmission delay of urgent data.

Keywords

Acknowledgement

This paper was supported by Education and Research Promotion Program of KOREATECH in 2021.

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