Analysis and Design of Low-power Transceiver with Zigbee Sensor Unit
نویسندگان
چکیده
Power consumption of nodes in a wireless sensor network (WSN) determines the life cycle of the WSN, so it is particularly important to design low-power and high-performance wireless sensor nodes in the network. Based on a simple analysis of the IEEE802.15.4 protocol specifications and comparison among the efficiencies of different physical layers, this paper illustrates the design and implementation of lowpower and high-performance nodes in WSN from the perspectives of 2.4G physical layer baseband spread spectrum and O-QPSK modulation demodulation, proposes a cascade de-spreading method, and finally puts forward a modulation and demodulation scheme according to the IEEE 802.15.4 specifications and despreading method.
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