  -Recent advances in microelectronics have enabled the realization of Wireless
Body Area Networks (WBANs). However , the massive growth in wireless devices
and the push for interconnecting these devices to form an Internet of Things
(IoT) can be challenging for WBANs; hence robust communication is necessary
through careful medium access arbitration. In this paper, we propose a new
protocol to enable WBAN operation within an IoT. Basically, we leverage the
emerging Bluetooth Low Energy technology (BLE) and promote the integration of a
BLE transceiver and a Cognitive Radio module (CR) within the WBAN coordinator.
Accordingly, a BLE informs WBANs through announcements about the frequency
channels that are being used in their vicinity. To mitigate interference, the
superframe's active period is extended to involve not only a Time Division
Multiple Access (TDMA) frame, but also a Flexible Channel Selection (FCS) and a
Flexible Backup TDMA (FBTDMA) frames. The WBAN sensors that experience
interference on the default channel within the TDMA frame will eventually
switch to another Interference Mitigation Channel (IMC). With the help of CR,
an IMC is selected for a WBAN and each interfering sensor will be allocated a
time-slot within the (FBTDMA) frame to retransmit using such IMC.
