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Communication Dans Un Congrès Année : 2014

Characteristics of Baseband Digital Signal Transmission for Intrabody Communications

Résumé

Intrabody communications (IBC) is a new physical layer outlined in the recently ratified IEEE 802.15.6 Wireless Body Area Network (WBAN) standard. This data communication method uses the human body itself as the signal propagation medium. It is significant to investigate the signal characteristics for baseband digital data transceiver design in IBC. In this paper, we present preliminary channel attenuation characteristics for baseband digital signal transmission. A digital block implemented on field-programmable gate array (FPGA) board as well as a digital Pulse Generator are employed as the IBC transmitters. The measurements using FPGA indicate the signal attenuation of 32.76 and 27.82 dB at frequency of 10 and 25 MHz, respectively, for digital signals with 50% duty cycle. In addition, the attenuation of signal with 20% and 50% duty cycle at 50 MHz are 32.76 and 30.63 dB when Pulse Generator is used as the IBC transmitter. The variation of duty cycle in pulses was then used to simulate a time division multiplexed transmission scheme. It was then observed that the attenuation decreases around 4 dB when data pulses are increasingly present from 1 to 5 timeslots. Therefore, digital baseband signals deployed in a time division multiplexed mode with higher timeslot

Domaines

Electronique
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Dates et versions

hal-00937047 , version 1 (27-01-2014)

Identifiants

  • HAL Id : hal-00937047 , version 1

Citer

Zibo Cai, Mirhojjat Seyedi, Daniel T.H. Lai, Francois Rivet. Characteristics of Baseband Digital Signal Transmission for Intrabody Communications. I2MTC 2014, May 2014, MONTEVIDEO, Uruguay. pp.72-79. ⟨hal-00937047⟩
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