Abstract
Wireless sensor network (WSN) consists of base stations and sensors nodes to monitor physical and environmental conditions. Power consumption is a challenge in WSN due to activities of nodes. High power consumption is required for the main transceiver in WSN to receive communication requests all the time. Hence, a low power wake-up receiver is needed to minimize the power consumption of WSN. In this work, a low power wake-up receiver using ultrasound data communication is designed. Wake-up receiver is used to detect wake-up signal to activate a device in WSN. Functional block modelling of the wake-up receiver is developed in Silterra CMOS 130nm process technology. The performance of the wake-up receiver has been analyzed and achieving low power consumption which is 22.45μW. A prototype to demonstrate a wireless sensor node with wake-up receiver has been developed incorporating both ultrasonic and RF for internal and external communication respectively. We achieve 99.97% of power saving for 10s operation in the experimental setup for the WSN with and without wake-up receiver. Wake-up receiver used in WSN save power and prolong the lifetime of batteries and thus extending the operational lifetime of WSN.
Highlights
A wireless sensor network (WSN) is a wireless network that consists of base stations and a large amount of spatially distributed and dedicated sensors to monitor physical and environmental conditions such as pressure, temperature, motion, sound vibration o r pollutants at different locations
Based on [18], the wake-up receiver with low power consumption had been achieved by using radio frequency (RF) communication system but it required higher carrier frequency to process compared to other communication system
A low power wake-up receiver using ultrasound data communication is designed for wireless sensor node
Summary
A wireless sensor network (WSN) is a wireless network that consists of base stations and a large amount of spatially distributed and dedicated sensors to monitor physical and environmental conditions such as pressure, temperature, motion, sound vibration o r pollutants at different locations. ISSN: 2302-9285 in WSN as it provides the capability for wireless communication to the sensor nodes but it requires high power consumption for working. Based on [18], the wake-up receiver with low power consumption had been achieved by using radio frequency (RF) communication system but it required higher carrier frequency to process compared to other communication system. A prototype is built to demonstrate a sensor node with wake -up receiver using ultrasound data communication. 3. FUNCTIONAL BLOCKS IN WAKE-UP RECEIVER The functional block modelling of wake-up receiver using ultrasound data communication is designed for low noise amplifier, carrier band amplifier and mixer by using Cadence Virtuoso.
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