Earticle

초록

영어

Under indoor environments, a beacon’s received-signal strength is very unstable. Utilizing the signal strength indication for estimating the distance between Access Points(APs) and beacons is very hard as the received signal frequently contains noise signals. Therefore, the noise signals need to be eliminated from the signal. Traditional research methods remove the noise signals by extracting and removing the peak signals. However, these methods consider only the upper side peak signals. This paper proposes a signal processing method that eliminates impulse noises in the beacon-AP signal in real time. By applying a noise filter to the two directional signals of impulse noises, the impulse noises can be eliminated. In the experiments, the proposed method was compared with traditional research methods. Compared to the traditional method, the proposed method reduced the difference between the calculated and estimated signal strength to 64%.

목차

Abstract
 I. INTRODUCTION
 II. PROPOSED REFINEMENT OF IMPULSE NOISE FOR BEACON-AP SIGNAL
  A. Definition of parameters
  B. Signal Refinement Stage
 III. EXPERIMENT
 IV. CONCLUSION
 ACKNOWLEDGEMENT
 REFERENCES

키워드

저자

• Sang-Geol Lee [ Dept. of Electrical and Computer Engineering, Pusan National University, Busan, South Korea ]
• Eui-Young Cha [ Dept. of Electrical and Computer Engineering, Pusan National University, Busan, South Korea ]
• Yunsick Sung [ Faculty of Computer Engineering, Keimyung University, Daegu, South Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JoC [Journal of Convergence]

• 간기

  계간

• pISSN

  2093-7741

• eISSN

  2093-775X

• 수록기간

  2010~2015

• 십진분류

  KDC 004 DDC 004