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Ma Chunbo, Xia Baohui, Ao Jun, Kang Jiajun. Accurate decoding arithmetic of LDPC based on APD receivers[J]. Infrared and Laser Engineering, 2015, 44(3): 1028-1033.
Citation: Ma Chunbo, Xia Baohui, Ao Jun, Kang Jiajun. Accurate decoding arithmetic of LDPC based on APD receivers[J]. Infrared and Laser Engineering, 2015, 44(3): 1028-1033.
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Accurate decoding arithmetic of LDPC based on APD receivers

  • 1.

    Institute of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China

  • Received Date: 2014-07-14
  • Rev Recd Date: 2014-08-12
  • Proceed from the detected optical field's quantum statistics model of the Avalanche Photo Diode (APD) photoelectric detection receivers, an accurate realize method of Intensity-Modulation/Direct-Detection (IM/DD) Free Space Optical Communication (FSOC) fit Low Density Parity Check(LDPC)Codes decoding algorithm was investigated. This scheme, which was based on APD receivers' output statistical model(Webb-Gaussian Model), derivated the accurate calculating method of the original value of the likelihood ratio in LDPC decoding arithmetic over M-PPM demodulation. A detailed decoding process was given at the same time. By taking theoretical analysis and simulations, a result has been proved that:comparing with the most frequent used asymmetric Gaussian approximation model of APD receivers, the scheme introduced in this paper could get a gain of 1-2 dB in the decoding performance while in the same SNR. This gives the theoretical support in order to improve the performance of FSOC system further more.
  • [1] Leng Jiaofeng, Hao Shiqi, Lv Xuguang, et al. Modified decoding algorithm of LDPC codes for wireless optical communication[J]. Infrared and Laser Engineering, 2012, 41(8): 2130-2135. (in Chinese) 冷蛟锋, 郝士琦, 吕旭光, 等. 一种改进的无线光通信LDPC码译码算法[J]. 红外与激光工程, 2012, 41(8): 2130-2135.
    [2]
    [3]
    [4] Wu Yongsheng, Yang Aiying, Sun Yunan, et al. An enhanced soft value calculations for LDPC coded pulse-position-modulation[J]. IEEE Communications Letters, 2012, 16(5): 745-747.
    [5]
    [6] Liu Min. Research on the transmission performance of LDPC and PPM in wireless laser communication system[D]. Xi'an: Xidian University, 2013. (in Chinese) 刘敏. 无线激光通信系统中LDPC码和PPM的传输性能研究[D]. 西安: 西安电子科技大学, 2013.
    [7] Yuan Jianguo, Wang Wang, Liang Tianyu. A novel construction method of QC-LDPC codes for high-speed long-haul optical communication systems[J]. Journal of Optoelectronics Laser, 2012, 23(5): 906-909. (in Chinese) 袁建国, 王望, 梁天宇. 一种高速长距离光通信系统中QC-LDPC码的构造方法[J]. 光电子激光, 2012, 23(5): 906-909.
    [8]
    [9]
    [10] Yuan Jianguo, Wang Wang, Tang Bin, et al. A novel construction method of QC-LDPC codes based on Galois field multi-plicative group[J]. Journal of Optoelectronics Laser, 2012, 23(7): 1304-1308. (in Chinese) 袁建国, 王望, 汤彬, 等. 光通信系统中基于伽罗华域乘群的QC-LDPC码的一种新颖构造方法[J]. 光电子激光, 2012, 23(7): 1304-1308.
    [11] Zheng Ruitong, Wu Guanhao. Pulsed one-dimensional scannerless LiDAR system based on linear APD array[J]. Infrared and Laser Engineering, 2012, 41(1): 96-100. (in Chinese) 郑睿童, 吴冠豪. 基于线阵APD探测器的脉冲式一维非扫描激光雷达系统[J]. 红外与激光工程, 2012, 41(1): 96-100.
    [12]
    [13]
    [14] Xiang Jinsong, Ma Shengming, Liu Fei, et al. Decoding technology and performance analysis of LDPC code over APD receiver for space optical communication[J]. Journal of Optoelectronics Laser, 2013, 24(4): 687-691. (in Chinese) 向劲松, 马圣明, 刘飞, 等. 空间光通信APD接收机下LDPC码译码方法及性能分析[J]. 光电子激光, 2013, 24(4): 687-691.
    [15] Chen Chunyi, Yang Huamin, Tong Shoufeng, et al. Modeling and power analysis for uplink of laser communication between airplane and satellite[J]. Journal on Communications, 2008, 29(1): 125-131. (in Chinese) 陈纯毅, 杨华民, 佟首峰, 等. 飞机对卫星激光通信上行链路建模与功率分析[J]. 通信学报, 2008, 29(1): 125-131.
    [16]
    [17] McIntyre R J. The distribution of gains in uniformly multiplying avalanche photodiodes: theory[J]. IEEE Trans on Electron Devices, 1972, 19(6): 703-713.
    [18]
    [19] Conradi J. The distribution of gains in uniformly multiplying avalanche photodiodes: experimental[J]. IEEE Trans on Electron Devices, 1972, 19(6): 713-718.
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Accurate decoding arithmetic of LDPC based on APD receivers

  • 1. Institute of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China
  • Received Date: 2014-07-14
  • Rev Recd Date: 2014-08-12

Abstract: Proceed from the detected optical field's quantum statistics model of the Avalanche Photo Diode (APD) photoelectric detection receivers, an accurate realize method of Intensity-Modulation/Direct-Detection (IM/DD) Free Space Optical Communication (FSOC) fit Low Density Parity Check(LDPC)Codes decoding algorithm was investigated. This scheme, which was based on APD receivers' output statistical model(Webb-Gaussian Model), derivated the accurate calculating method of the original value of the likelihood ratio in LDPC decoding arithmetic over M-PPM demodulation. A detailed decoding process was given at the same time. By taking theoretical analysis and simulations, a result has been proved that:comparing with the most frequent used asymmetric Gaussian approximation model of APD receivers, the scheme introduced in this paper could get a gain of 1-2 dB in the decoding performance while in the same SNR. This gives the theoretical support in order to improve the performance of FSOC system further more.

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