Multichannel ultrasonic data communications in air using range-dependent modulation schemes

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dc.contributor.author Jiang, Wentao
dc.contributor.author Wright, William M. D.
dc.date.accessioned 2017-08-16T11:29:36Z
dc.date.available 2017-08-16T11:29:36Z
dc.date.issued 2016-01
dc.identifier.citation Jiang, W. and Wright, W. M. D. (2016) 'Multichannel ultrasonic data communications in air using range-dependent modulation schemes', IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 63(1), pp. 147-155. doi:10.1109/TUFFC.2015.2498479 en
dc.identifier.volume 63 en
dc.identifier.issued 1 en
dc.identifier.startpage 147 en
dc.identifier.endpage 155 en
dc.identifier.issn 0885-3010
dc.identifier.uri http://hdl.handle.net/10468/4462
dc.identifier.doi 10.1109/TUFFC.2015.2498479
dc.description.abstract There are several well-developed technologies of wireless communication such as radio frequency (RF) and infrared (IR), but ultrasonic methods can be a good alternative in some situations. A multichannel airborne ultrasonic data communication system is described in this paper. ON-OFF keying (OOK) and binary phase-shift keying (BPSK) modulation schemes were implemented successfully in the system by using a pair of commercially available capacitive ultrasonic transducers in a relatively low multipath indoor laboratory environment. Six channels were used from 50 to 110 kHz with a channel spacing of 12 kHz, allowing multiple 8-bit data packets to be transmitted simultaneously. The system data transfer rate achieved was up to 60 kb/s and ultrasonic wireless synchronization was implemented instead of using a hard-wired link. A model developed in the work could accurately predict ultrasonic signals through the air channels. Signal root mean square (rms) values and system bit error rates (BERs) were analyzed over different distances. Error-free decoding was achieved over ranges up to 5 m using a multichannel OOK modulation scheme. To obtain the highest data transfer rate and the longest error-free transmission distance, a range-dependent multichannel scheme with variable data rates, channel frequencies, and different modulation schemes, was also studied in the work. Within 2 m, error-free transmission was achieved using a five-channel OOK with a data rate of 63 kb/s. Between 2 and 5 m, six-channel OOK with 60 kb/s data transfer rate was error free. Beyond 5 m, the error-free transmission range could be extended up to 10 m using three-channel BPSK with a reduced data rate of 30 kb/s. The situation when two transducers were misaligned using three-channel OOK and BPSK schemes was also investigated in the work. It was concluded that error-free transmission could still be achieved with a lateral displacement of less than 7% and oblique angles of less than 7°, and three-channel BPSK proved to be more robust than three-channel OOK with transducer misalignment. en
dc.description.sponsorship Science Foundation Ireland (Research Frontiers Programme Grant Number 11/RFP.1/ECE/3119) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.rights © 2016, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en
dc.rights.uri http://www.ieee.org/publications_standards/publications/rights/copyrightpolicy.html en
dc.subject Receivers en
dc.subject Air-coupled ultrasound en
dc.subject Bit error rate en
dc.subject BER en
dc.subject Capacitive ultrasonic transducer en
dc.subject Multichannel communication en
dc.subject OOK en
dc.subject Binary phase-shift keying en
dc.subject BPSK en
dc.subject Modulation en
dc.subject Wireless synchronization en
dc.subject ON-OFF keying en
dc.subject Acoustics en
dc.subject Transducers en
dc.subject Atmospheric modeling en
dc.subject Frequency modulation en
dc.title Multichannel ultrasonic data communications in air using range-dependent modulation schemes en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother William Wright, Electrical & Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: bill.wright@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2017-08-16T10:54:10Z
dc.description.version Accepted Version en
dc.internal.rssid 407212059
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress bill.wright@ucc.ie en


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