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학술지 Design and Analysis of a Magnetic Field Communication System Using a Giant Magneto-Impedance Sensor
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저자
류승훈, 김기범, 김장열, 조인귀, 김해림, 안장용, 최준성, 안승영
발행일
202206
출처
IEEE Access, v.10, pp.56961-56973
ISSN
2169-3536
출판사
IEEE
DOI
https://dx.doi.org/10.1109/ACCESS.2022.3171581
협약과제
22HH3500, [전문연구실] 10pT급 미소자계 기반 중장거리 자기장 통신기술, 조인귀
초록
Given the interest of researchers for wireless communications in electromagnetic (EM) shadow areas, a magnetic field communication has emerged to overcome RF challenges based on magnetic permeability characteristics. However, magnetic field communication has the demerit of a short communication range. Considering this limitation, we have proposed the GMI sensor-based field receiver to obtain immunity to low-frequency noise and high sensitivity for extension of communication range in previous studies. Further, this paper designs a magnetic field communication system with a GMI sensor-based receiver including a transmitter. Even though the basic concept of magnetic field communication is taken from previous studies, this study conducts the different realization of the system with transmitter system and communication link. Besides, this paper proposes the experiment of magnetic field communication using a GMI sensor-based system to verify its applicability in the practical environment for the first time. Bit error rate (BER), spurious-free dynamic range (SFDR), and random noise are measured with an on-off keying (OOK) communication link to analyze the stability and reliability of the system. The experimental verification and analysis entail the conditions of communication distance and channel medium to mimic practical communication in atmospheric, underwater, and underground environments. A comprehensive analysis of the system design and experimental verification for application in a practical environment show the possibility of the proposed system to realize improved wireless communications in EM shadow areas.
KSP 제안 키워드
Bit Error Rate(And BER), Communication link, Communication range, Communication system, Experimental Verification, GMI sensor, Giant magnetoimpedance, High Sensitivity, Low frequency noise, Magnetic field(MF), Permeability characteristics
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