一种无线传感器网络超低功耗接收器设计

基金项目:

国家自然科学基金资助项目（51274011）

教育部新世纪优秀人才计划支持项目（NCET-10-0002）

安徽省杰出青年基金项目（1108085J03）

Design of ultra-low power consumption receiver for wireless sensor network

School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China

摘要: 针对无线接收器功耗影响无线传感器网络生命周期的问题，在OOK超再生接收器的基础上，设计了一种无线传感器网络超低功耗无线接收器——BFSK超再生接收器；介绍了该接收器的体系结构，给出了该接收器的电路设计。该接收器在保留OOK超再生接收器超低功耗的基础上，采用f1和f2两种频道来确定输出是0还是1，使得传输速率得到了较大提高。实验结果表明，当传输速率为250 kbit/s时，2.4 GHz接收器灵敏度为-86 dB?m，功耗仅为215 μW。
- 无线传感器网络 /
- 超再生接收器 /
- 低功耗 /
- OOK /
- BFSK
Abstract: In view of problem of influence of power consumption of wireless receiver on lifecycle of wireless sensor network, BFSK super-regenerative receiver, namely a wireless receiver with ultra-low power consumption for wireless sensor network was designed based on OOK super-regenerative receiver. Structure and circuit design of the receiver were introduced. The super-regenerative receiver employs two channels of f1 and f2 to determine output if “0” or “1” based on reserving ultra-low power consumption of OOK, and greatly improves transmission rate. The testing results show that the sensitivity of 2.4 GHz receiver is -86 dB?m and the power consumption is only 215 μW when its transmission rate is 250 kbit/s.
- wireless sensor network /
- super-regenerative receiver /
- low power consumption /
- OOK /
- BFSK