Abstract
A novel super forward error correction (SFEC) coding scheme, based on the block turbo code (BTC) of Bose–Chaudhuri–Hocguenghem (BCH)(64,57)×BCH(64,57), in high-speed long-haul dense wavelength division multiplexing (DWDM) optical communication systems is proposed. The simulation results and its analyses show that the net coding gain (NCG) of the novel SFEC code at iteration 6 is, respectively, 0.31 and 0.34 dB more than those of the BCH(3860, 3824)+BCH(2040, 1930) code and Reed–Solomon (RS)(255,239)+convolutional–self-orthogonal code (CSOC)( k 0/ n 0=6/7, J=8) code in the Recommendation of ITU-T G.975.1 at iteration 3 for the bit error rate (BER) of 10 −12. The performance analyses for the novel SFEC code show that it has excellent advantages such as the shorter component code and rapid encoding/decoding speed; thus, both the complexity to implement its software/hardware and the delay time for its encoding/decoding can be greatly reduced. As a result, the novel SFEC coding scheme can better be applicable in high-speed long-haul DWDM optical communication systems. In addition, the design and implementation of the novel BTC are also analyzed and probed.
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