| Improved FEC Code Based on Concatenated Code for Optical Transmission Systems |
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| 作者姓名： | YUAN Jian-guo JIANG Ze MAO You-ju |
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| 作者单位： | 1. College of Optoelectronics Engineering，Chongqing University，Chongqing 400044，CHN; 2. Institute of Optical Fiber Communications，Chongqing University of Posts & Telecommunications，Chongqing 400065，CHN |
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| 基金项目： | 高比容电子铝箔的研究开发与应用项目，重庆邮电大学校科研和教改项目 |
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| 摘 要： | The improved three novel schemes of the super forward error correction(super-FEC) concatenated codes are proposed after the development trend of long-haul optical transmission systems and the defects of the existing FEC codes have been analyzed. The performance simulation of the Reed-Solomon(RS)+Bose-Chaudhuri-Hocguenghem(BCH) inner-outer serial concatenated code is implemented and the conceptions of encoding/decoding the parallel-concatenated code are presented. Furthermore, the simulation results for the RS(255,239)+RS(255,239) code and the RS(255,239)+RS(255,223) code show that the two consecutive concatenated codes are a superior coding scheme with such advantages as the better error correction, moderate redundancy and easy realization compared to the classic RS(255,239) code and other codes, and their signal to noise ratio gains are respectively 2～3dB more than that of the RS(255,239)code at the bit error rate of 1×10 -13 . Finally, the frame structure of the novel consecutive concatenated code is arranged to lay a firm foundation in designing its hardware.
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| 关 键 词： | 光学传输系统 误差修正 连接码 框架结构 |
| 文章编号： | 1007-0206（2006）03-0211-06 |
| 收稿时间： | 2006-04-18 |
| 修稿时间： | 2006-04-27 |
Improved FEC Code Based on Concatenated Code for Optical Transmission Systems |
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| YUAN Jian-guo,JIANG Ze,MAO You-ju.Improved FEC Code Based on Concatenated Code for Optical Transmission Systems[J].Semiconductor Photonics and Technology,2006,12(3):211-216. |
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| Authors: | YUAN Jian-guo JIANG Ze MAO You-ju |
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| Abstract: | The improved three novel schemes of the super forward error correction(super-FEC) concatenated codes are proposed after the development trend of long-haul optical transmission systems and the defects of the existing FEC codes have been analyzed. The performance simulation of the Reed-Solomon(RS) Bose-Chaudhuri-Hocguenghem(BCH) inner-outer serial concatenated code is implemented and the conceptions of encoding/decoding the parallel-concatenated code are presented. Furthermore,the simulation results for the RS(255,239) RS(255,239) code and the RS(255,239) RS(255,223) code show that the two consecutive concatenated codes are a superior coding scheme with such advantages as the better error correction,moderate redundancy and easy realization compared to the classic RS(255,239) code and other codes,and their signal to noise ratio gains are respectively 2～3 dB more than that of the RS(255,239)code at the bit error rate of 1×10-13. Finally,the frame structure of the novel consecutive concatenated code is arranged to lay a firm foundation in designing its hardware. |
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| Keywords: | Optical transmission systems Super forward error correction Concatenated code Frame structure |
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