7th International Conference on Body Area Networks

Research Article

SAR Reduction in Implant Body Area Networks with Spatial Diversity Reception

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  • @INPROCEEDINGS{10.4108/icst.bodynets.2012.249839,
        author={Daisuke Anzai and Sho Aoyama and Masafumi Yamanaka and Jianqing Wang},
        title={SAR Reduction in Implant Body Area Networks with Spatial Diversity Reception},
        proceedings={7th International Conference on Body Area Networks},
        publisher={ICST},
        proceedings_a={BODYNETS},
        year={2012},
        month={11},
        keywords={sar implant bans spatial diversity reception},
        doi={10.4108/icst.bodynets.2012.249839}
    }
    
  • Daisuke Anzai
    Sho Aoyama
    Masafumi Yamanaka
    Jianqing Wang
    Year: 2012
    SAR Reduction in Implant Body Area Networks with Spatial Diversity Reception
    BODYNETS
    ICST
    DOI: 10.4108/icst.bodynets.2012.249839
Daisuke Anzai1,*, Sho Aoyama1, Masafumi Yamanaka1, Jianqing Wang1
  • 1: Nagoya Institute of Technology
*Contact email: anzai@nitech.ac.jp

Abstract

This paper investigates the impact of spatial diversity reception on specific absorption rate (SAR) reduction at 400 MHz medical implant communication service (MICS) band. First, in order to calculate the bit error rate (BER) performance under this implant propagation channel and derive the required transmit power to secure a permissible BER, we perform finite-difference time-domain (FDTD) simulations for implant BAN channel modeling with a numerical human body model. Then, we calculate the local peak SAR under the required transmit power when the implant transmitter moves along the digestive organs. Consequently, our simulation results demonstrate that the use of spatial diversity reception can significantly reduce SAR in implant body area networks.