Low Power Ultrasound Communication For Wireless Sensor Network

Tan, Szi Hui (2019) Low Power Ultrasound Communication For Wireless Sensor Network. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Low Power Ultrasound Communication For Wireless Sensor Network.pdf - Submitted Version Download (3MB)

Abstract

A low power wake-up receiver by using ultrasound communication is designed. Wake-up receiver is used to detect wake-up signal to activate a device for power saving in wireless sensor network (WSN). WSN is a wireless network that 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. Functional block modelling of the wakeup receiver is developed in Silterra CMOS 130nm process technology. The performance of functional block modelling of wake-up receiver is analyzed with obtaining power consumption of 22.45μ W . A prototype to demonstrate a wireless sensor node with wake-up receiver is built by using ultrasonic and RF communication system. The power consumption of the prototype and a sensor node without wake-up receiver are 0. 105mWh and 0.311 Wh respectively. Wake-up receiver used in WSN can save power and prol?ng the lifetime of batteries and thus extending the operational lifetime of WSN.

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