Abstract
In this paper, a joint throughput and channel aware medium access control (MAC) scheduling scheme is presented and evaluated for Smart Body Area Network (SmartBAN) standard, developed by European Telecommunications Standards Institute (ETSI). At first, various mobility patterns are generated which provide dynamic space-time variations in distance and link types for different on-body links. These space-time varying links help in realistic pathloss values calculation under dynamic environment, which subsequently provides signal-to-noise ratio (SNR), bit error rate (BER), and packet error rate (PER) results for further performance evaluations. Subsequently, the presented algorithm utilizes the radio link SNR to select the appropriate nodes for a given time slot in the first phase. While, in the second phase, the slot is assigned to one of the chosen nodes based on their priority level and data packet availability. We use m-periodic scheduling technique in which the nodes are considered for slot assignment according to their data packet generation rates during the second phase. For performance comparison, we carry out reference SmartBAN MAC scheduling with and without repetitions for the same m-periodically generated data. The simulation results indicate significant performance gain of the presented scheduling algorithm in terms of packet reception rate (PRR) and energy efficiency over the reference SmartBAN MAC scheduling with and without repetition. The average improvement in PRR results is found to be more than 60%, whereas a maximum enhancement of 92% is observed in terms of energy efficiency. However, the performance gain is compromised by an average of 40% increase in latency for sit-stand posture.
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Acknowledgements
This research was supported by the Estonian Research Council through the Institutional Research Project IUT19-11, and by the Horizon 2020 ERA-chair Grant “Cognitive Electronics COEL” H2020-WIDESPREAD-2014-2 (Agreement number: 668995; project TTU code VFP15051).
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Khan, R., Alam, M.M. (2020). Joint Throughput and Channel Aware MAC Scheduling for SmartBAN. In: Sugimoto, C., Farhadi, H., Hämäläinen, M. (eds) 13th EAI International Conference on Body Area Networks . BODYNETS 2018. EAI/Springer Innovations in Communication and Computing. Springer, Cham. https://doi.org/10.1007/978-3-030-29897-5_5
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