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Proceedings Paper

Study on ameliorating the FEC coding techniques in current high-rate optical transmission systems
Author(s): Jianguo Yuan; Wenwei Ye; Ze Jiang; Youju Mao; Wei Wang
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Paper Abstract

In this paper, the three ameliorated new coding schemes of the Super-FEC (Forward Error Correction) concatenatedcodes (namely, the inner-outer concatenated-code, the parallel concatenated-code and the successive concatenated-code with interleaving) are proposed after the development trend of high-rate optical transmission systems and the defects of the FEC codes in the current optical transmission systems have been analyzed. The system simulation of the inner-outer concatenated-codes is implemented and the schemes of encoding/decoding the parallel concatenated-codes are proposed. Furthermore, the two successive concatenated-codes with interleaving of the RS(255,239)+RS(255,239) code and the RS(255,239)+RS(255,223) code are simulated, and the analyses for the simulation results show that the two successive concatenated-codes with interleaving, compared with the classic RS (255,239) code and other codes, are a superior code type with the advantages of the better correction error, moderate redundancy and easy realization. And their net coding gains (NCG) are respectively 1.5dB, 2.5dB more than that of the classic RS(255,239) code at the BER (Bit Error Rate) of 10-12. At last, based on the ITU-T G.709, the frame format of the new concatenated-code on applying in high-rate optical transmission systems is proposed and designed, this lays a firm foundation in order to design its hardware in future and pioneers a direction in its physical application.

Paper Details

Date Published: 29 January 2007
PDF: 7 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62796F (29 January 2007); doi: 10.1117/12.725744
Show Author Affiliations
Jianguo Yuan, Chongqing Univ. of Posts and Telecommunications (China)
Chongqing Univ. (China)
Wenwei Ye, Chongqing Univ. of Posts and Telecommunications (China)
Ze Jiang, Chongqing Univ. of Posts and Telecommunications (China)
Youju Mao, Chongqing Univ. of Posts and Telecommunications (China)
Wei Wang, Chongqing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics

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