IEEE802.15.6 is one of the most appropriate candidate to perform remote patient health monitoring. WBAN. However for the special context of medical exploitation, IEEE 802.15.6 has many challenge to complet Thus, this protocol should have a high reliability and very low energy consumption. In this paper, we analyze IEEE802.15.6 MAC polling mechanism performances. The study is based on WBAN IEEE802.15.6 protocol specifications for standardized data rates under two Narrow Band frequencies. Finding results shows the originality of this study by recommending decisive factors to select the appropriate medical sensor Data Rate in order to decrease packets loss ratio and consequently improve reliability. Moreover, our presented recommendations decrease energy consumption and consequently increase sensors lifetime for medical sensors exploitation.

Keywords : Polling; WBAN; IEEE802.15.6; Energy consumption, Medical Sensors.