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Reliable and Delay Tolerant Transmission Protocols for LPWAN IoT Sensors

A lightweight protocol stack is designed using layered approach and is versatile enough to be transplanted onto several LPWAN technologies. The design is implemented on the top of NB-IoT protocols in our experiments. Data aggregation and delay tolerance are expected to help IoT devices to improve data reliability. The proposed algorithm, Data Reselection Algorithm, retains all timelines of collected data in limited storage space. Finally, to validate the performance, related experiments conducted with the MCU nRF52832 are also done in this paper.