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Performance Evaluation on the Power Consumption of IEEE802.15.4e TSCH

IEEE802.15.4e TSCH의 소비전력에 대한 성능평가

  • 김동원 (충북도립대학 반도체전자과) ;
  • 윤미희 (충북도립대학 컴퓨터보안과)
  • Received : 2017.12.15
  • Accepted : 2018.02.09
  • Published : 2018.02.28

Abstract

In this paper, we evaluate the power consumption of IEEE802.15.4e TSCH which uses the specific link scheduling scheme proposed in reference[1]. And we also compares it with the power consumption of conventional single channel IEEE802.15.4. The power consumption of IEEE802.15.4e TSCH is smaller than the conventional one under the any conditions of traffic. The reasons can be explained as the followings. Firstly, TSCH does not have backoff time because of using the collision free link scheduling. Secondly, there is the timing difference of MAC offset parameter between TSCH and conventional IEEE802.15.4 Lastly, the devices in TSCH mode sleep during the time slots which are not assigned to itself.

본 논문에서는 참고문헌[1] 논문에서 제안한 고유의 링크 스케줄링 방법이 적용된 IEEE802.15.4e TSCH (Time-Slotted Channel Hopping)의 전력 소비 측면에서 절감 능력을 기존 단일채널 IEEE802.15.4와 비교하여 분석한다. TSCH 방식이 기존 방식에 비해 어떤 트래픽 조건하에서도 전력소모가 적게 하는 것으로 나타난다. 그 이유는 첫째, 충돌이 발생하지 않는 스케줄링 방식으로 인해 백오프 시간이 없다는 점과 둘째, MAC 오프셋 시간변수들의 차이로 인한 것으로 판단된다. 마지막으로 TSCH에서는 디바이스들은 자신의 스케줄이 아닌 타임 슬롯 동안은 sleep을 통해 전력 소모를 줄일 수 있음을 볼 수 있다.

Keywords

References

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