Experimental analysis of the diversity technique effects applied on the mobile reception of the underwater acoustics OFDM signal / Análise experimental dos efeitos da técnica de diversidade aplicada na recepção móvel de sinal OFDM acústico submarino

Authors

  • Pedro Eugênio Martins de Magalhães
  • José Santo Guiscafré Panaro
  • Leni Joaquim de Matos

DOI:

https://doi.org/10.34117/bjdv8n1-133

Keywords:

Diversity methods, OFDM modulation, phase shift keying, underwater communication.

Abstract

This paper presents the effects of diversity in space, time and frequency on the OFDM signals propagating in a mobile underwater acoustics channel in shallow water environment. To accomplish this, measurements were performed in Forno Bay, Rio de Janeiro, Brazil, using three hydrophones, separated in fixed depths, and two frequency ranges, 2 to 4 kHz and 5 to 7 kHz. Four different OFDM signals with variation on the spacing of subcarrier and multilevel modulation were tested in the underwater channel and it was proposes a temporal diversity during the ODFM symbol interval, taking advantage of the time interval of a cyclic prefix. The improvement reached with diversity is analyzed through bit error rate (BER) comparison and the overall best configuration of OFDM signal is appointed.

References

WALREE, P. V. 2011. Channel sounding for acoustic communications: techniques and shallow-water examples. FFI-rapport 2011/00007, Norwegian Defense Research Establishment.

PRESIG, J. C. & STOJANOVIC, M. 2009. Underwater acoustic communication channels: propagation models and statistical characterization. IEEE Commun. Mag., vol. 47, no. 1, 84-89.

MATOS, J. C., MAINETTI, E., FERREIRA, G. P., PANARO, J. S. G. & BARREIRA, L. 2012. Time and frequency fading statistics for underwater acoustic signals in shallow water. Proc. of Underwater Communications - UComms 2012, Italy.

WALREE, P. V. & AND OTNES, R. 2012. Wideband properties of underwater acoustic communication channels. Proc. of Underwater Communications - UComms 2012, Italy.

DOL, H. S. , COLLIN, M. E. G. D., AINSLIE, M. A. & WALREE, P. A. 2013. Simulation of an underwater acoustic communication channel characterized by wind-generated surface waves and bubbles. IEEE J. Oceanic Eng., vol. 38, no. 4, 642-654..

CHITRE, M. 2007. A high-frequency warm shallow water acoustic communications channel model and measurements. The Journal of the Acoustical Society of America, vol. 122, pp. 2580-2586.

LI, B., ZHOU, S., STOJANOVIC, M., FREITAG, L. & WILLET, P. 2008. Multicarrier communication over underwater acoustic channels with non-uniform Doppler shifts. IEEE J. Oceanic Eng., vol. 33, no. 2, 198-209.

OCHI, H., WATANABE, Y., SHIMURA, T & HATTORI, T. 2008. Experimental results of short range wideband acoustic communication using QPSK and 8PSK. Proc. OCEANS 2008, Kobe, Japan, 1-5.

MOROZOV, A. K. & PREISIG, J. C. 2006. Underwater acoustic communications with multi-carrier modulation. Proc. IEEE OCEANS 2006, 1-6.

ANDREWS, G. A. , GHOSH, A. & MUHAMED, R. 2007. Fundamentals of WiMAX: Understanding Broadband Wireless Networking. Massachusetts, Prentice Hall.

CHITRE, M., ONG, S. H. & POTTER, J. 2005. Performance of coded OFDM in very shallow water channels and snapping shrimp noise. Proc. IEEE Oceans'05, vol. 2, 996-1001.

MASON, S., BERGER, C., ZHOU, S., BALL, K., FREITAG, L. & WILLETT, P. 2009. An OFDM design for underwater acoustic channels with Doppler spread. in Proceedings of IEEE DSP/SPE 2009, pp. 138-143.

LI, B., HUANG, J., ZHOU, S. BALL, K., STOJANOVIC, M., FREITAG, L. & WILLETT, P.. 2009. MIMO-OFDM for high rate underwater acoustic communications. IEEE J. Ocean. Eng., vol. 34, no. 4, 634-644.

PELEKANAKIS, K. & BAGGEROER, A. B. 2011. Exploiting time-frequency-space diversity with coded OFDM for underwater acoustic communications. IEEE J. Ocean. Eng., vol. 36, no. 4.

MCGEE, J. A.. 2015. Applying diversity to mitigate interference in underwater acoustic communication networks. Doctorate Thesis, University of Rhode Island, 2015.

PRANITHA, B.. & ANJANEYULU, L.. 2016. BER performance evaluation of underwater communication system with spatial diversity. Indian Journal of Science and Technology, vol. 9 (S1), Dec. 2016.

DIAS, M. S. & MATOS, L. J. Experimental characterization of the mobile underwater acoustic communication channel in shallow water, to be submitted.

Published

2022-01-10

How to Cite

de Magalhães, P. E. M., Panaro, J. S. G., & de Matos, L. J. (2022). Experimental analysis of the diversity technique effects applied on the mobile reception of the underwater acoustics OFDM signal / Análise experimental dos efeitos da técnica de diversidade aplicada na recepção móvel de sinal OFDM acústico submarino. Brazilian Journal of Development, 8(1), 2068–2082. https://doi.org/10.34117/bjdv8n1-133

Issue

Section

Original Papers