Third generation FEC employing turbo product code for long-haul DWDM transmission systems

Akita, M.; Fujita, Hachiro; Matsukawa, Takashi; Kubo, Kazuya; Yoshida, Hideo; Kuno, Kazuhiro; Kurahashi, S.

doi:10.1109/ofc.2002.1036367

Cited by 18 publications

(27 citation statements)

References 2 publications

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“…Since our extensive simulations show that the finite geometry LPDC codes perform well in the presence of all the previously mentioned impairments and significantly outperform previously proposed FEC schemes [3]- [5], including the turbo codes, we are confident in proposing their use in optical communications for high-speed long-haul transmission.…”

Section: Discussionmentioning

confidence: 60%

“…As opposed to recent papers [3]- [5] where the AWGN assumption is applied, we consider the performance of finite geometry codes in the presence of ASE noise, pulse distortion due to fiber nonlinearities, residual dispersion, crosstalk effects, ISI, etc. The iterative decoding based on a normalized min-sum algorithm has been demonstrated to give a coding gain of 9-10 dB, depending on the code rate and family, at a BER of .…”

Section: Discussionmentioning

confidence: 99%

“…The validity of such an approach is discussed in our previous paper [20], where overlapping results with Monte Carlo simulations are obtained. (Notice that the process generated in such a way is nonstationary (5).) The simulator developed allows also to transmit the encoded signal when ASE noise-signal interaction during transmission over the fiber media is included, which is unavoidable in a highly nonlinear transmission system.…”

Section: Simulation Model Descriptionmentioning

confidence: 99%

“…For such applications, the role of the proper modulation scheme, proper dispersion map, and proper forward-error correction (FEC) schemes [1], [2] are increasingly important to maintain the acceptable transmission system performance. Ait Sab proposed a concatenated scheme with two Reed-Solomon (RS) codes and another scheme with block turbo codes (BTCs) [3]- [5]. In a series of recent articles, we showed that error performance and decoder hardware complexity offered by turbo codes can be greatly improved by using other types of iteratively decodable coding schemes, in particular low-density parity-check (LDPC) codes [2], [6].…”

Section: Introductionmentioning

confidence: 99%

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Projective-Plane Iteratively Decodable Block Codes for WDM High-Speed Long-Haul Transmission Systems

Djordjević

Sankaranarayanan

Vasić

2004

J. Lightwave Technol.

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Abstract-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.

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Section: Simulation Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Projective-Plane Iteratively Decodable Block Codes for WDM High-Speed Long-Haul Transmission Systems

Djordjević

Sankaranarayanan

Vasić

2004

J. Lightwave Technol.

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“…A significant effort has been made to apply error-control techniques to various optical transmission systems [2]- [5] with a special emphasis on turbo codes [6]. In a series of articles [7]- [9], we showed that error performance and decoder hardware complexity offered by turbo codes can be greatly improved by using other types of iteratively decodable coding schemes, in particular low-density parity check (LDPC) codes.…”

mentioning

confidence: 99%

Projective geometry LDPC codes for ultralong-haul WDM high-speed transmission

Djordjević

Vasić

2003

IEEE Photon. Technol. Lett.

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Abstract-In this letter, we investigate the performance of low-density parity-check (LDPC) codes in long-haul optical communication systems for carrier-suppressed return-to-zero signal format at 40 Gb/s per channel in a wavelength-division-multiplexing environment. We are particularly concerned with high-rate codes based on projective geometries. These codes have large minimum distance and simple iterative decoding algorithms, which makes them good candidates for such high-speed application. We consider iterative decoding based on min-sum algorithm since it requires only simple addition and minimum operations and, as such, is suitable for high-speed optical transmission. Contrary to the common practice of considering the performance of error controlling schemes using the additive white Gaussian noise channel assumption, we consider the performance of the proposed LDPC schemes, taking into account in a natural way all major impairments in long-haul optical transmission such as amplifier spontaneous emission noise, pulse distortion due to fiber nonlinearities, chromatic dispersion or polarization dispersion, crosstalk effects, intersymbol interference, etc.Index Terms-Error control, iterative decoding, long-haul transmission, low-density parity-check (LDPC) codes, optical communications, projective geometries.

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Channel Coding for Optical Communications

Benedetto

Bosco

Optical Communication Theory and Techniques

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Third generation FEC employing turbo product code for long-haul DWDM transmission systems

Cited by 18 publications

References 2 publications

Projective-Plane Iteratively Decodable Block Codes for WDM High-Speed Long-Haul Transmission Systems

Projective-Plane Iteratively Decodable Block Codes for WDM High-Speed Long-Haul Transmission Systems

Projective geometry LDPC codes for ultralong-haul WDM high-speed transmission

Channel Coding for Optical Communications

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