The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Power-based Pipelined-forwarding MAC Protocol for Energy Harvesting Wireless Sensor Networks

에너지 하베스팅 무선 센서네트워크을 위한 전력기반 Pipelined-forwarding MAC프로토콜

  • Shim, Kyuwook (School of Electrical Electronic and Communication Engineering, KOREATECH) ;
  • Park, Hyung-Kun (School of Electrical Electronic and Communication Engineering, KOREATECH)
  • Received : 2018.09.13
  • Accepted : 2018.12.19
  • Published : 2019.01.01
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Abstract

In this paper, we propose the power-based pipelined-forwarding MAC protocol which can select relay nodes according to the residual power and energy harvesting rate in EH-WSN (energy-harvesting wireless sensor networks). The proposed MAC follows a pipelined-forwarding scheme in which nodes repeatedly sleep and wake up in an EH-WSN environment and data is continuously transmitted from a high-level node to a low-level node. The sleep interval is adaptively controlled so that nodes with low energy harvesting rate can be charged sufficiently, thereby minimizing the transmission delay and increasing the network lifetime. Simulation shows that the proposed MAC protocol improves the balance of residual power and network lifetime.

Keywords

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그림 1 Pipelined-forwarding을 위한 노드 레벨링 Fig. 1 Level division for pipelined-forwarding

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그림 2 전력기반 pipelined-forwarding MAC에서 데이터 전송의 예 Fig. 2 Illustration of data transmission in power based pipelined-forwarding MAC

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그림 3 노드의 우선권에 따른 두 가지 모드의 경쟁윈도우 Fig. 3 Contention Windows due to the priority

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그림 4 1000To 동안 노드의 평균 죽는 횟수 Fig. 4 Average number of deaths of nodes per 1000T0

References

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