Title :
Wireless ZigBee transceiver for smart meter reading system
Author :
Cai Yuehong ; Xiao Yong ; Yan Xiao ; Qin Kaiyu
Author_Institution :
Astronaut. & Aeronaut. Inst., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Long spectrum spreading chip sequences are proposed in this paper to reduce ZigBee system bit error rate (BER) and improve anti-noise performance of the system. The direct sequence spread spectrum (DSSS) and offset quadrature phase shift keying (OQPSK) modulation wireless transceiver system in compliance with ZigBee regulation and its anti-noise performance in the additive white Gauss noise (AWGN) channel and Rayleigh channel have been studied. Experiments show that 32 yards long spread spectrum communication system BER can be reduced to 1/23 compared with 16 yards long spread spectrum communication system when signal-to-noise ratio (SNR) is 6dB. In other words, the performance withstanding noise could be enhanced using long spectrum spreading chip sequences.
Keywords :
AWGN channels; Rayleigh channels; Zigbee; code division multiple access; power system measurement; quadrature phase shift keying; radio transceivers; smart meters; Rayleigh channel; additive white Gauss noise channel; anti-noise performance; bit error rate; direct sequence spread spectrum; distance 32 yard; long spectrum spreading chip sequences; offset quadrature phase shift keying; signal-to-noise ratio; smart meter reading system; spread spectrum communication system; wireless ZigBee transceiver; wireless transceiver system; Bit error rate; Modulation; Protocols; Spread spectrum communication; Transceivers; Wireless communication; Zigbee; DSSS; OQPSK; ZigBee; spectrum spreading chip sequences;
Conference_Titel :
Power Engineering and Automation Conference (PEAM), 2012 IEEE
Conference_Location :
Wuhan
Print_ISBN :
978-1-4577-1599-0
DOI :
10.1109/PEAM.2012.6612420
