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RDTP: Reliable Delay Time Protocol with Duty Cycle Optimization in 6LoWPAN-WBAN

Illapu Sankara Srinivasa Rao, M. Aswini

Abstract


Medium access control (MAC) protocols based on the adaptive duty cycle and the IEEE 802.15.4 standard have recently been proposed to address the Quality of Service (QoS) requirements of wireless body area sensor networks. These QoS requirements include time-bound data transmission services, data rate, reliability, and energy consumption. Providing a comprehensive set of QoS is difficult with the present protocols, though. Furthermore, these protocols adjust duty cycle values by considering factors such as active time intervals, buffer occupancy, and collision rates, leading to decreased energy consumption. These estimates are time-consuming and energy-intensive, making them unsuitable for use in medical settings. We present a tele-medicine protocol (RDTP) for use with IEEE 802.15.4 slotted CSMA/CA in beacon-enabled mode, optimized duty cycles based on fine-tuning MAC layer parameters. Network traffic availability, delay-reliability, and super frame duration are the three parameters that influence the RDTP's operational schedule. Patient monitoring applications necessitate a set of QoS, and the proposed protocol provides all three at once: low latency, high uptime, and low power usage. By altering the number of nodes in the network and the amount of traffic offered, we may calculate the performance of the proposed protocol according to metrics such as average end-to-end delay, dependability, packet delivery ratio, collision rate, and energy usage. When compared to other current protocols within the limitations of patient monitoring applications, the RTDP fared well in terms of delay, dependability, energy usage, and collision rate.


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