Abstract
The IEEE 802.15.6 slotted Aloha based protocol for wireless body area network includes contention based medium access control to accommodate heterogeneous body sensor nodes. Current protocol has been designed to handle incoming packets from sensors having different priorities but per class throughput degrades as the number of competing nodes increases. An improved algorithm is suggested to handle not only the throughput issue but also the starvation issue in saturated conditions. Simulation results validates the suggested algorithm.
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