The Internet of Things (IoT) allows you to connect, measure, control millions of devices. IoTs require cost-effective, long-range and energy-efficient sensors and performance images. The paper considers LoRaWAN technology, one of the low-power wide area network (LPWAN) technologies, which in recent years has received close attention of the research community. LoRaWAN provides low power consumption and low data transfer rates. Using the LoRaWAN protocol in IoT systems allows you to optimize power consumption, capacity, cost and coverage of the system. The article investigates the problem of traffic distribution over radio frequency channels and offers an approach to modeling the LoRaWAN network based on the presence of several independent radio frequency channels. Within the framework of this approach, a model and method for calculating the LoRaWAN network are proposed. In particular, the solution method is described using the dynamic programming approach. A method for solving the problem of optimal traffic distribution is proposed. Numerical results show the effectiveness of the proposed approach, in which the throughput of LoRa technology is used to the maximum. In some cases, it is proposed to transmit over the network only those portions of the image that change in time.

Authors: Yu. T. Lyachek, M. C. A. Muthanna

Direction: Informatics, Computer Technologies And Control

Keywords: LoRaWAN, radio-frequency channels, packet loss probability, probability of collisions, transmission model, trafficcalculation method

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