Projective-plane iteratively decodable block codes for WDM high-speed long-haul transmission systems

被引:35
作者
Djordjevic, IB [1 ]
Sankarandrayanan, S
Vasic, BV
机构
[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA
[2] Univ W England, Bristol BS16 1QY, Avon, England
基金
美国国家科学基金会;
关键词
finite geometries codes; forward-error correction (FEC); low-density parity-check (LDPQ codes; optical communications;
D O I
10.1109/JLT.2004.825768
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Low-density parity-check (LDPC) codes are excellent candidates for optical network applications due to their inherent low complexity of both encoders and decoders. A cyclic or quasi-cyclic form of finite geometry LDPC codes simplifies the encoding procedure. In addition, the complexity of an iterative decoder for such codes, namely the min-sum algorithm, is lower than the complexity of a turbo or Reed-Solomon decoder. In fact, simple hard-decoding algorithms such as the bit-flipping algorithm perform very well on codes from projective planes. In this paper, the authors consider LDPC codes from affine planes, projective planes, oval designs, and unitals. The bit-error-rate (BER) performance of these codes is significantly better than that of any other known foward-error correction techniques for optical communications. A coding gain of 9-10 dB at a,BER of 10(-9), depending on the code rate, demonstrated,here is the best result reported so far. In order to assess the Performance of the proposed coding schemes, a very realistic simulation model is used that takes into account in a natural way all major impairments in long-haul optical transmission such as amplified spontaneous emission noise, pulse distortion due to fiber nonlinearities, chromatic dispersion, crosstalk effects, and intersymbol interferencec. This approach gives a much better estimate of the code's performance than the commonly used additive white Gaussian noise channel model.
引用
收藏
页码:695 / 702
页数:8
相关论文
共 28 条
  • [1] Agrawal G., 2001, Nonlinear Fibers Optics, V3rd
  • [2] Akita M., 2002, Optical Fiber Communications Conference. (OFC). Postconference Technical Digest (IEEE Cat. No.02CH37339), P289, DOI 10.1109/OFC.2002.1036367
  • [3] [Anonymous], MATH ITS APPL
  • [4] ASSMUS EF, 1990, CODING THEORY DESI 1, V20, P1
  • [5] Equalization and FEC techniques for optical transceivers
    Azadet, K
    Haratsch, EF
    Kim, H
    Saibi, F
    Saunders, JH
    Shaffer, M
    Song, L
    Yu, ML
    [J]. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2002, 37 (03) : 317 - 327
  • [6] CIRCULATING LOOP TRANSMISSION EXPERIMENTS FOR THE STUDY OF LONG-HAUL TRANSMISSION-SYSTEMS USING ERBIUM-DOPED FIBER AMPLIFIERS
    BERGANO, NS
    DAVIDSON, CR
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 1995, 13 (05) : 879 - 888
  • [7] Long-haul 40 Gb/s DWDM transmission with aggregate capacities exceeding 1 Tb/s
    Cai, JX
    Nissov, M
    Davidson, CR
    Pilipetskii, AN
    Mohs, G
    Li, HF
    Cai, Y
    Golovchenko, EA
    Lucero, AJ
    Foursa, DG
    Bergano, NS
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2002, 20 (12) : 2247 - 2258
  • [8] Colbourn C. J., 1996, HDB COMBINATORIAL DE
  • [9] Projective geometry LDPC codes for ultralong-haul WDM high-speed transmission
    Djordjevic, IB
    Vasic, B
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (05) : 784 - 786
  • [10] DJORDJEVIC IB, 2004, J OPT COMMUN, V20