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Authors: Daniel F. Albuquerque ; José M. N. Vieira ; Carlos A. C. Bastos and Paulo J. S. G. Ferreira

Affiliation: University of Aveiro, Portugal

Keyword(s): Indoor location system, Asynchronous communication, OFDM, Ultrasound, Time-of-flight.

Related Ontology Subjects/Areas/Topics: Digital Signal Processing ; Location Systems and Technology ; Mobile and Pervasive Computing ; Signal Processing in Communications ; Telecommunications

Abstract: In this work we propose a frame architecture for asynchronous data transmission using ultrasonic OFDM pulses in reverberant environments. The frame has two different OFDM pulses modulated with BPSK. The first pulse plays an important role, it is used for time synchronization and to demodulated the unknown data in the second pulse by a differential demodulation scheme. The proposed frame architecture proved to be robust to the multipath in different scenarios. Results have demonstrated that it is possible to keep the bit error rate low in the presence of strong signal echos where other techniques fails, moreover, the simulations show that it would increase the reliability of ultrasonic indoor location systems.

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Paper citation in several formats:
F. Albuquerque, D.; M. N. Vieira, J.; A. C. Bastos, C. and J. S. G. Ferreira, P. (2011). ULTRASONIC OFDM PULSE FOR BEACON IDENTIFICATION AND DISTANCE MEASUREMENT IN REVERBERANT ENVIRONMENTS. In Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS; ISBN 978-989-8425-48-5; ISSN 2184-2817, SciTePress, pages 124-132. DOI: 10.5220/0003375601240132

@conference{peccs11,
author={Daniel {F. Albuquerque}. and José {M. N. Vieira}. and Carlos {A. C. Bastos}. and Paulo {J. S. G. Ferreira}.},
title={ULTRASONIC OFDM PULSE FOR BEACON IDENTIFICATION AND DISTANCE MEASUREMENT IN REVERBERANT ENVIRONMENTS},
booktitle={Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS},
year={2011},
pages={124-132},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003375601240132},
isbn={978-989-8425-48-5},
issn={2184-2817},
}

TY - CONF

JO - Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS
TI - ULTRASONIC OFDM PULSE FOR BEACON IDENTIFICATION AND DISTANCE MEASUREMENT IN REVERBERANT ENVIRONMENTS
SN - 978-989-8425-48-5
IS - 2184-2817
AU - F. Albuquerque, D.
AU - M. N. Vieira, J.
AU - A. C. Bastos, C.
AU - J. S. G. Ferreira, P.
PY - 2011
SP - 124
EP - 132
DO - 10.5220/0003375601240132
PB - SciTePress