KEYWORDS: Photovoltaics, Data transmission, Telecommunications, Windows, Distributed computing, Data communications, Data fusion, Solar energy, Control systems, Wireless communications
To solve many problems caused by the large-scale construction of roof distributed photovoltaic power stations in the future, and realize the group control of photovoltaic power stations, an intelligent Internet of Thing (IoT) communication system, which based on high-reliability power line carrier communication and 5G wireless communication technology, is proposed in this paper. Meanwhile, for solving the problem of resource collision and critical data loss caused by a large number of intelligent fusion terminals accessing the wireless network, a priority-based random access congestion control algorithm is proposed. By performing priority grouping, the algorithm allocates the backoff window dynamically. Through experimental simulation, it can be seen that compared with the classic binary backoff algorithm, this algorithm is able to significantly improve the stability of data transmission, reduce the packet loss rate, and play a role in alleviating network congestion and optimizing network performance.
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