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Performance analysis of turbo codes based on underwater experimental data
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 Title & Authors
Performance analysis of turbo codes based on underwater experimental data
Sung, Ha-Hyun; Jung, Ji-Won;
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The performance of underwater acoustic communication systems is sensitive to inter-symbol interference caused by delay spread developed from multipath signal propagation. The multipath nature of underwater channels causes signal distortion and error floor. In order to improve the performance, it is necessary to employ an iterative coding scheme. Of the various iterative coding schemes, turbo code and convolutional code based on the BCJR algorithm have recently dominated this application. In this study, the performance of iterative codes based on turbo equalizers with equivalent coding rates and similar code word lengths were analyzed. Underwater acoustic communication system experiments using these two coding techniques were conducted on Kyeong-chun Lake in Munkyeong City. The distance between the transmitter and receiver was 400 m, and the data transfer rate was 1 Kbps. The experimental results revealed that the performance of turbo codes is better for channeling than that of convolutional codes that use a BCJR decoding algorithm.
Multi path;Inter-Symbol Interference;Underwater acoustic communication;Turbo codes;Turbo equalizer;
 Cited by
M. Stojanovic, J. Catipovic, and J. Proakis, "Phase coherent digital communications for underwater acoustic channels," IEEE Journal of the Ocean Engineering, vol. 19, no. 1, pp. 100-111, 1994. crossref(new window)

P. V. Walree, Channel Sounding for Acoustic Communications: Techniques and Shallow-Water Examples, FFI (Norwegian Defence Research Establishment) report, 2011.

D. B. Kilfoyle and A. B. Baggeroer, "The state of art in underwater acoustic telemetry," IEEE Journal of the Oceanic Engineering, vol. 25, no. 1, pp. 4-27, 2000. crossref(new window)

T. D. Park, S. R. Lee, B. M. Kim, and J. W. Jung, "Analysis of optimal iterative turbo equalizer for underwater acoustic communication," Journal of the Korea Information and Communication Society, vol. 38C, no. 3, pp. 303-310, 2005.

T. S. Ahn and J. W. Jung, "Experimental Performance analysis of BCJR-based turbo equalizer in underwater," Journal of the Korean Institute of Navigation and Port Research, vol. 39, no. 4, pp. 293-297, 2015. crossref(new window)

M. H. Kim, T. D. Park, B. S. Lim, I. G. Lee, D. G. Oh, and J. W. Jung, "Analysis of turbo coding and decoding algorithm for DVB-RCS next generation," Journal of the Korea Information and Communications Society, vol. 36, no. 9, pp. 537-545, 2011. crossref(new window)

M. Tuchler, R. Koetter, and A. Singer, "Turbo equalization : Principles and new results," IEEE Transactions on Communications, vol. 50, no. 5, pp. 754-767, 2002. crossref(new window)

V. Franz and J. B. Anderson, "Concatenated decoding with a reduced search BCJR algorithm," IEEE Journal of the Select. Areas Communications, vol. 16, pp. 186-195, 1998. crossref(new window)