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http://dx.doi.org/10.12673/jkoni.2012.16.2.190

Performance of Concatenated Reed-Solomon and Convolutional Codes for Digital Modems in HF Data Communications  

Kim, Jeong-Chang (Korea Maritime University)
Yang, Gyu-Sik (Korea Maritime University)
Jeong, Gi-Ryong (Korea Maritime University)
Park, Dong-Kook (Korea Maritime University)
Jung, Sung-Hun (Korea Maritime University)
Publication Information
Journal of Advanced Navigation Technology / v.16, no.2, 2012 , pp. 190-196 More about this Journal
Abstract
In this paper, we propose an improved error correction code in order to improve the performance of digital modems for HF data communications and verify the performance of the proposed scheme. The proposed scheme employs outer Reed-Solomon codes concatenated with inner convolutional codes. Numerical results show that the proposed system significantly improves the bit error rate performance compared to the conventional PACTOR-III modems. Hence, the proposed system can improve the bandwidth efficiency of digital modems for HF data communications.
Keywords
Concatenation; convolutional code; HF; PACTOR-III; Reed-Solomon;
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1 Characteristics of HF radio equipment for the exchange of digital data and electronic mail in the maritime mobile service, Recommendation ITU-R M.1798-1, April 2010.
2 A. R. M. Sidek and A. Z. Sha'ameri, "Evaluation of modulation coding schemes for adaptive HF data communication system," in Proc. of IEEE 2008 6th National Conference on Telecommunication Technologies and IEEE 2008 2nd Malaysia Conference on Photonics, pp. 267-272, Aug. 2008.
3 G. Dimic, N. Nenadic and M. Nikolic, "Symbol and frame timing estimation for multicarrier HF packet radio," 17th Telecommunications forum TELFOR 2009, pp. 608-611, Nov. 2009.
4 H. Tatsunami, K. Ishibashi, and H. Ochiai, "On the performance of LDPC codes with differential detection over Rayleigh fading channels," in Proc. of IEEE Veh. Technol. Conf., pp. 2388-2392, May 2006.
5 E. Mo and P. Y. Kam, "Log-likelihood metrics based on two-symbol-interval observations for LDPC codes with BDPSK transmission," in Proc. of IEEE Veh. Technol. Conf., Sept. 2008.
6 E. Mo P. Y. Kam, and M. A. Armand, "LLR metrics for LDPC codes with quadrature differential PSK transmission, and their performances," in Proc. of International Symp. Info. Theory and its App., Dec. 2008.
7 E. Mo and M. A. Armand, "Pseudocodeword weights for LDPC codes under differential PSK transmission over the noncoherent AWGN channel," IEEE Trans. Commun, vol. 59, no. 5, pp. 1218-1223, May 2011.   DOI   ScienceOn
8 Y. Jiang, A practical guide to error-control coding using MATLAB, Artech House, 2010.