Title :
Study on transfer function of intra-body communication based on quasi-static electric field modeling
Author :
Chen, X.M. ; Pun, S.-H. ; Gao, Y.M. ; Mak, P.U. ; Vai, M.-I. ; Du, M.
Author_Institution :
Electr. & Comput. Eng., Univ. of Macau, Taipa, China
Abstract :
Transfer function analysis plays an important role in the investigation of intra-body communication (IBC). In this paper, the voltage distribution based on the quasi-static electric field modeling of human limb for galvanic coupling IBC is analyzed, transfer function of physical channel from 1 Hz to 1 MHz is derived and proposed. The attenuation in transfer function shows that lower attenuation is obtained in frequency band from 20 kHz to 1 MHz. Moreover, rectangular pulse is utilized as the input to evaluate this system transfer function. The results in rectangular pulse response indicate separation of distance between transmitter and receiver is the major consideration in designing galvanic coupling IBC system. Finally, this paper reveals bit error rate (BER) under different distances for binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK) and 8PSK modulation schemes.
Keywords :
body area networks; electric fields; error statistics; quadrature phase shift keying; transfer functions; 8PSK modulation schemes; BAN; BER; BPSK; QPSK; binary phase-shift keying; bit error rate; body area network; frequency 20 kHz to 1 MHz; galvanic coupling IBC system; human limb; intra-body communication; quadrature phase-shift keying; quasistatic electric field modeling; rectangular pulse response; system transfer function; voltage distribution;
Conference_Titel :
Biomedical and Health Informatics (BHI), 2012 IEEE-EMBS International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4577-2176-2
Electronic_ISBN :
978-1-4577-2175-5
DOI :
10.1109/BHI.2012.6211596
