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Performance Analysis of Wireless Link Based on IEEE 802.15.4 in Industrial Environment

Jun Wang, Jingtao Hu

Abstract


Communications play a dominant role in industrial network. But the performance of wireless link is very unstable in industrial environment. Some of the existing ?eldbus-protocols face serious degradations in their achievable deadlines when dealing with busty channels. Wireless signal is seriously interfered in industrial environment, and the link performance of wireless communications technology will appear larger variation in industrial environment than in business environment. The link budget model of IEEE 802.15.4 is deduced in this paper. The simulation system based on this budget model is established by Matlab. The simulation presents link performance of IEEE 802.15.4 at the industrial noise range (typically between 10dB and 60 dB) and security level (The IEC61508 defined standard- SIL1, SIL2 and SIL3).The result is used for research on industrial wireless network.

Keywords


IEEE 802.15.4, link performance, simulation, industrial wireless network.

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