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학술지 Highly Simplified and Bandwidth-Efficient Human Body Communications Based on IEEE 802.15.6 WBAN Standard
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저자
강태욱, 황정환, 김성은, 오광일, 박형일, 임인기, 강성원
발행일
201612
출처
ETRI Journal, v.38 no.6, pp.1074-1084
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.16.2716.0003
협약과제
15MI2500, 밀리미터파 5G 이동통신 시스템 개발, 김태중
초록
This paper presents a transmission method for improving human body communications in terms of spectral efficiency, and the performances of bit-error-rate (BER) and frame synchronization, with a highly simplified structure. Compared to the conventional frequency selective digital transmission supporting IEEE standard 802.15.6 for wireless body area networks, the proposed scheme improves the spectral efficiency from 0.25 bps/Hz to 1 bps/Hz based on the 3-dB bandwidth of the transmit spectral mask, and the signal-to-noise-ratio (SNR) by 0.51 dB at a BER of 10-6 with an 87.5% reduction in the detection complexity of the length of the Hamming distance computation. The proposed preamble structure using its customized detection algorithm achieves perfect frame synchronization at the SNR of a BER of 10-6 by applying the proposed pre-processing to compensate for the distortions on the preamble signals due to the band-limit effects by transmit and receive filters.
키워드
Frequency selective digital transmission, Human body communications, Wireless body area networks