Title :
Multi-channel indoor wireless data communication using high-k capacitive ultrasonic transducers in air
Author :
Wentao Jiang ; Wright, William M. D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Coll. Cork, Cork, Ireland
Abstract :
This work has demonstrated multi-channel wireless communication using a pair of broadband high-k capacitive ultrasonic transducers. Modulated ultrasound was used to carry digitally coded data signal over short distances using Amplitude Shift Keying (ASK) and On-Off Keying (OOK) modulation schemes. The over-all system data rate achieved was up to 420 kbps with ultrasonic wireless synchronization. Signal-to-Noise Ratio (SNR) and bit error rate (BER) characteristics were analysed and compared between different modulation schemes. It was shown that OOK can be used to transmit signals with higher power efficiency and lower BER than ASK.
Keywords :
amplitude shift keying; capacitive sensors; data communication; indoor radio; ultrasonic transducers; amplitude shift keying; bit error rate characteristics; broadband high-k capacitive ultrasonic transducers; digitally coded data signal; modulated ultrasound; multichannel indoor wireless data communication; on-off keying modulation schemes; over-all system data rate; signal-to-noise ratio; ultrasonic wireless synchronization; Acoustics; Amplitude shift keying; Bit error rate; Signal to noise ratio; Ultrasonic transducers; Wireless communication; air-coupled ultrasound; broadband; capacitive ultrasonic transducer; ultrasonic communication;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0409
