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Different emerging IEEE 802.15.4 wireless personal area networks (WPANs) are one solution for wireless sensor networks (WSNs), where applications are restricted by low data rate, short transmission distance, and low power consumption. The frame transmission mechanism of the IEEE 802.15.4 standard, which adopts the blind random backoff mechanism, was designed to minimize power consumption. However,...
The development of the Low-Rate Wireless Sensor Network(LR-WSN)is matures gradually and the characteristics of LR-WSN included low date rate, low power consumption and low volume...etc. For the application of emergency cases, like calamity detection of the mudflows and landslides, according to earthquake sounds and the humidity of the soil, the detection sensors is in very low date rate state in most...
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