Abstract
The performance of the implant inside a human body with polarisation, distance, and different power settings at the base-station is presented. In addition, the unslotted CSMA/CA protocol is studied for a heterogeneous WBAN.
Highlights
In [1], authors show that the implant’s effective radiated power (ERP) and receive signal strength indication (RSSI) are affected by the depth inside a human body
With regards to the MAC part, the authors of [1] discourage the use of the CSMA/CA protocol for WBAN due to unreliable clear channel assessment (CCA) in the medical implant communication service (MICS) band
There is no discussion on the MAC performance of the CSMA/CA protocol for WBAN
Summary
In [1], authors show that the implant’s effective radiated power (ERP) and receive signal strength indication (RSSI) are affected by the depth inside a human body. Neither the polarisation of the implant nor the effect(s) of the implant’s distance (from the base station) and the power settings (at the base station) on the RSSI is considered. With regards to the MAC part, the authors of [1] discourage the use of the CSMA/CA protocol for WBAN due to unreliable clear channel assessment (CCA) in the medical implant communication service (MICS) band. There is no discussion on the MAC performance of the CSMA/CA protocol for WBAN. We extend the results of [1] by considering the effects of the implant’s polarisation, distance, and the power settings (at the base station) on the ERP and RSSI. For the performance analysis of the CSMA/CA protocol, we consider the unslotted CSMA/CA protocol used in a nonbeacon IEEE 802.15.4 mode [2]
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