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Designing a stable wireless sensor network with reliable transmission is a key issue for wireless communication applied in the complex ship environment. The traditional network node deployment mainly relies on human experience along with multiple tests and leads to very long construction period. The current work established a three-dimensional ray-tracing model of the 433MHz wave transmission in an engineering ship. The multi-path propagation prediction results were compared with the on-site test of wireless channel using LoRa communication devices. Then the deployment scheme of the transmission and reception nodes was proposed to facilitate the signal stable transmission. It could provide an effective theoretical guidance for the network construction.
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