%0 Journal Article
%@ 23274662
%A Suresh, K.
%A Jeoti, V.
%A Drieberg, M.
%A Soeung, S.
%A Iqbal, A.
%A Stojanovic, G.M.
%A Sarang, S.
%D 2022
%F scholars:16487
%I Institute of Electrical and Electronics Engineers Inc.
%J IEEE Internet of Things Journal
%K Acoustic surface wave devices; Acoustic waves; Electric batteries; Ultrasonic transducers; Water conservation; Water quality, Communication infrastructure; Interdigital transducer; Internet of Things (IOT); Multiple surfaces; Passive sensor tags; Simultaneous detection; Surface acoustic waves; Water quality monitoring, Internet of things
%N 16
%P 14385-14399
%R 10.1109/JIOT.2021.3082141
%T Simultaneous Detection of Multiple Surface Acoustic Wave Sensor Tags for Water Quality Monitoring Utilizing Cellular Code-Reuse Approach
%U https://khub.utp.edu.my/scholars/16487/
%V 9
%X A water quality monitoring application often requires the deployment of Internet-of-Things (IoT) sensors over a wide water body with communication links among them to transmit, receive the data, and then uplink it to the cloud for further analytics. Deployment of this kind requires battery-assisted IoT sensors which require monitoring the battery level and replacement when necessary. It is thus desirable to have battery-free sensor tags and a suitable communication infrastructure to obtain data. In this article, a system that facilitates obtaining sensed data, like pH, through passive sensor tags based on surface acoustic wave (SAW) technology and a cellular code-reuse scheme-based reader infrastructure is proposed. The reader in each cell is able to read multiple sensor tags simultaneously, which itself has been a challenge. The SAW sensor tags are appropriately proposed to be designed to be orthogonal to allow simultaneous detection and the cell range of reader-SAW sensor-tags communication is sought to be further enhanced through a resonant loading of interdigital transducer (IDT)-based reflectors. © 2014 IEEE.
%Z cited By 3