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An Adaptive Power-Controlled Routing Protocol for Energy-limited Wireless Sensor Networks

  • Won, Jongho (School of Electrical, Electronic, and Communication Engineering, KOREATECH) ;
  • Park, Hyung-Kun (School of Electrical, Electronic, and Communication Engineering, KOREATECH)
  • Received : 2018.07.16
  • Accepted : 2018.09.04
  • Published : 2018.09.30

Abstract

Wireless sensor networks (WSN) are composed of a large number of sensor nodes. Battery-powered sensor nodes have limited coverage; therefore, it is more efficient to transmit data via multi-hop communication. The network lifetime is a crucial issue in WSNs and the multi-hop routing protocol should be designed to prolong the network lifetime. Prolonging the network lifetime can be achieved by minimizing the power consumed by the nodes, as well as by balancing the power consumption among the nodes. A power imbalance can reduce the network lifetime even if several nodes have sufficient (battery) power. In this paper, we propose a routing protocol that prolongs the network lifetime by balancing the power consumption among the nodes. To improve the balance of power consumption and improve the network lifetime, the proposed routing scheme adaptively controls the transmission range using a power control according to the residual power in the nodes. We developed a routing simulator to evaluate the performance of the proposed routing protocol. The simulation results show that the proposed routing scheme increases power balancing and improves the network lifetime.

Keywords

References

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