During the last years, the implant devices tend to comprise a complete wireless transceiver, enabling the remote control of the monitoring. In contrast to conventional wireless communication systems, medical implants are characterized by much stricter limitations on size, reliability and power consumption, with the latter being of critical importance, since the replacement of the implants usually requires an invasive procedure. In this paper, taking into account a realistic wireless propagation environment based on the IEEE P802.15 channel model, we investigate the system's performance in terms of the Bit error Probability under various scenarios. The results of this work indicate that the placement of the wearable relays on the human body (e.g., hip, wrist, ankle) plays an important role for both the total power consumption and the wireless link quality. Several scenarios are investigated, which give insight into the system requirements and its behavior under realistic wireless environments and power considerations.
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