The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Channel Characterization and Transmission Efficiency Analysis of Wireless Body Area Network

WBAN 채널 특성과 전송 효율 분석

  • Ahn, Byoung-Jik (Department of Electronic Computer Engineering, Hanyang University) ;
  • Song, Seong-Moo (Department of Electronic Engineering, Hanyang University) ;
  • Kim, Sun-Woo (Department of Electronic Engineering, Hanyang University) ;
  • Choi, Jae-Hoon (Department of Electronic Engineering, Hanyang University)
  • 안병직 (한양대학교 전자컴퓨터통신공학과) ;
  • 송성무 (한양대학교 융합전자공학부) ;
  • 김선우 (한양대학교 융합전자공학부) ;
  • 최재훈 (한양대학교 융합전자공학부)
  • Received : 2012.04.23
  • Accepted : 2012.06.26
  • Published : 2012.08.31
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Abstract

This paper presents the real channel measurements and investigates their statistical characterization in wireless body area network(WBAN). In on-/off body channel, the measurements are performed with some representative human movements for considering human movements. Moreover, three signal transmission schemes with outage constraint are studied for getting total power consumption in each transmission scheme. Using the real channel measurements, between theoretical and realistic simulation are compared. This paper shows that power efficiency is improved through cooperative communication, and how much position of sensor node and human movement affect signal transmission power.

본 논문에서는 wireless body area network(WBAN) 채널을 분석하기 위해 실제 채널을 측정하고, 그것의 통계적 특성들을 조사하였다. On-/off-body 채널에서, 인체의 움직임을 고려하기 위해 대표적인 움직임들을 같이 측정하여 그 분석 결과들을 비교하였다. 또한, 세 종류의 신호 전송 기법을 제한된 Outage 확률을 가질 때 최소 소비 전력을 분석하여, 이론적인 총 전력 소비를 계산하였다. 그리고 채널 측정 데이터들을 통해 이론과 실제의 차이를 분석하였다. 본 논문의 결과로 협력 통신을 통하여 전송 효율을 높일 수 있음을 알 수 있으며, 센서 노드의 부착 위치와 움직임이 신호 전송 전력에 어떠한 영향을 미치는지 확인할 수 있다.

Keywords

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