EXIT Chart-Aided Design of LDPC Codes for Self-Coherent Detection with Turbo Equalizer for Optical Fiber Short-Reach Transmissions
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- OSAWA Noboru
- Graduate School of Engineering, Osaka University
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- IBI Shinsuke
- Graduate School of Engineering, Osaka University
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- IGARASHI Koji
- Graduate School of Engineering, Osaka University
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- SAMPEI Seiichi
- Graduate School of Engineering, Osaka University
抄録
<p>This paper proposed an iterative soft interference canceller (IC) referred to as turbo equalizer for the self-coherent detection, and extrinsic information transfer (EXIT) chart based irregular low density parity check (LDPC) code optimization for the turbo equalizer in optical fiber short-reach transmissions. The self-coherent detection system is capable of linear demodulation by a single photodiode receiver. However, the self-coherent detection suffers from the interference induced by signal-signal beat components, and the suppression of the interference is a vital goal of self-coherent detection. For improving the error-free signal detection performance of the self-coherent detection, we proposed an iterative soft IC with the aid of forward error correction (FEC) decoder. Furthermore, typical FEC code is no longer appropriate for the iterative detection of the turbo equalizer. Therefore, we designed an appropriate LDPC code by using EXIT chart aided code design. The validity of the proposed turbo equalizer with the appropriate LDPC is confirmed by computer simulations.</p>
収録刊行物
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- IEICE Transactions on Communications
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IEICE Transactions on Communications E102.B (7), 1301-1312, 2019-07-01
一般社団法人 電子情報通信学会
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詳細情報 詳細情報について
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- CRID
- 1390845713079639552
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- NII論文ID
- 130007671379
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- ISSN
- 17451345
- 09168516
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可