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Channel Prediction based Enhanced Throughput and Channel Aware MAC in SmartBAN Standard

Throughput and Channel Aware (TCA) Medium Access Control (MAC) scheduling scheme works effectively in compliance with the SmartBAN standard in enhancing the Packet Reception Rate (PRR) performance and reducing the node energy consumption per successful transmission over the reference SmartBAN MAC scheme. The algorithm uses the radio link SNR and the data packet generation rates, corresponding to different sensor nodes, to assign the scheduled access slots for data packet transmission. TCA algorithm in SmartBAN can be executed by slot reassignment method but sending slot reassignment frames and their node acknowledgements for TCA execution at alternate inter-beacon intervals may lead to poor energy efficiency. For decreasing the frequent occurrence of TCA execution via slot reassignment frame transmission, further enhancements can be introduced in baseline TCA. Therefore, this paper proposes a channel prediction based enhanced TCA MAC for SmartBAN standard. We take PRR as well as the node and hub energy consumption per successful transmission as key performance indicators for performance comparison. The simulation results indicate a maximum PRR performance improvement of 25% over the primary TCA whereas a maximum enhancement of 44.44% is observed in terms of energy efficiency.