Advanced SearchSearch Tips
Analysis of Optimum Iterative Codes for Underwater Acoustic Communication based on Turbo Equalizer
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Analysis of Optimum Iterative Codes for Underwater Acoustic Communication based on Turbo Equalizer
Park, Tae-Doo; Jung, Ji-Won;
  PDF(new window)
Underwater acoustic communication has multipath error because of reflection by sea-level and sea-bottom. The multipath of underwater channel causes signal distortion and error floor. In order to improve the performance, it is necessary to employ an iterative coding scheme. Among the iterative coding scheme, turbo codes, LDPC codes and convolutional code based on BCJR algorithm are dominant channel coding schemes in recent. Therefore this paper analyzed the performance of iterative codes based on turbo equalizer with the same coding rate and similar codeword length. The performances of three kinds of iterative codes were evaluated in the environment of underwater acoustic communication channel that are real data collected in Korean east sea. The distance of transmitter and receiver was 5Km and data rate was 1Kbps. As a result, convolutional code based on BCJR algorithm has better performance in underwater channel than turbo codes and LDPC codes.
Underwater acoustic communication;LDPC;Turbo codes;Turbo equalizer;BCJR;
 Cited by
Cai, Z. et al.(2006), "Efficient encoding of IEEE 802.11n LDPC codes", IEEE Electronics Letters, Vol. 42, No. 25.

Daniel, B. K. and Arthur, B. B.(2000), "The state of art in underwater acoustic telemetry," IEEE J. Oceanic Eng., Vol. 25, No. 1, pp. 4-27. crossref(new window)

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

Kim, M. H. et al.(2011), "Analysis of Turbo Coding and Decoding Algorithm for DVB-RCS Next Generation", J-KICS, Vol. 36, No. 9, pp. 537-545. crossref(new window)

Paul, V. W.(2011), Channel sounding for acoustic communications: techniques and shallow-water examples, FFI(Norwegian Defence Research Establishment) report.

Stojanovic, M., Catipovic, J. and Proakis, J.(1994), "Phase coherent digital communications for underwater acoustic channels.", IEEE J. Ocean. Eng., Vol. 19, No. 1, pp. 100-111. crossref(new window)

Tuchler, M. et al.(2002), "Turbo Equalization : Principles and New Results," IEEE Trans. Communications, Vol. 50, No. 5, pp. 754-767. crossref(new window)