A Modified IEEE 802.15.6 Mac Scheme to Enhance Performance of Wireless Body Area Networks in E-Health Applications

The recently released IEEE 802.15.6 standard specifies several physical (PHY) layers and medium access control (MAC) layer protocols for variety of medical non-medical applications Wireless Body Area Networks (WBAN). WBAN has obligatory requirements constrains viz. high reliability, strict delay deadlines low power consumption. MAC scheme is not able to fulfil the all WBAN. To address this issue we propose an 802.15.6-based that modification superframe structure, user priorities mechanism scheme. proposed three phases: random phases (RAP), manage (MAP) contention phase (CAP). four nodes channel during RAP using CAMA/CA with a large value window. uses RTS/CTS instead basic mitigate effect hidden expose terminal problem. Moreover, develop analytical model evaluate performance solve Maple. results show modified achieve better in terms throughput, average delay, energy consumption, utilization fairness compared E-health applications.