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In order to make sure that the Wireless Sensor Networks can transmit signals efficiently and reliably in uneven, heterogeneous and limited space, the V-MIMO-OFDM mode is used underground coal mines. It allows the nodes equipped with single antenna to process information and transmit collaboratively, so multi-path fading can be resisted efficiently. The energy consumption of SISO, V-MIMO and V-MIMO-OFDM...
In order to guarantee the safety of coal face production, it is necessary to monitor and surveillance face Shearer, scraper transport planes, hydraulic support, transport machines, broken machines etc . At present, it is difficult for the cable transmission mode to adapt to changes in the work site of the coal face. Transmission lines are often damaged and snapped for various factors, we use wireless...
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