| Presentation | 2020-12-03 A study on iterative decoding using neural network in SMR system Madoka Nishikawa, Yasuaki Nakamura, Yasushi Kanai, Hisashi Osawa, Yoshihiro Okamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We study the low-density parity-check (LDPC) coding and iterative decoding system by signal processing for the shingled magnetic recording (SMR) in two-dimensional magnetic recording (TDMR). In our previous research, we have reported waveform equalization using a two-dimensional finite impulse response (TD-FIR) filter and an inter-track interference (ITI) canceler and showed reducing the influence of ITI. In this paper, we propose a neural network detector with the functions of waveform equalization and iterative decoding. The neural network detector calculates the log-likelihood ratio (LLR) as the decoding reliability to pass the SP decoder for iterative decoding by the three reproduced waveforms from the decoding target track and the adjacent tracks, and the replica of the reproduced waveform from the decoding target track estimated from the returned sum-product (SP) decoder output sequence. Furthermore, we compare the iterative decoding using a neural network detector with that using TD-FIR filter and a posteriori probability (APP) decoder. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SMR / LDPC / Neural network / Iterative decoding |
| Paper # | MRIS2020-10 |
| Date of Issue | 2020-11-26 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
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| Conference Date | 2020/12/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | VIRTUAL CONFERENCE |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing and Others |
| Chair | Shuhei Yoshida(Kinki Univ.) / Kenji Machida(NHK) |
| Vice Chair | |
| Secretary | (Tohoku Inst. of Tech.) / (AIST) |
| Assistant | Yasuaki Nakamura(Ehime Univ.) / Yoshiyuki Hirayama(Samsung) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on iterative decoding using neural network in SMR system |
| Sub Title (in English) | |
| Keyword(1) | SMR |
| Keyword(2) | LDPC |
| Keyword(3) | Neural network |
| Keyword(4) | Iterative decoding |
| 1st Author's Name | Madoka Nishikawa |
| 1st Author's Affiliation | Ehime University(Ehime Univ.) |
| 2nd Author's Name | Yasuaki Nakamura |
| 2nd Author's Affiliation | Ehime University(Ehime Univ.) |
| 3rd Author's Name | Yasushi Kanai |
| 3rd Author's Affiliation | Niigata Institute of Technology(NIT) |
| 4th Author's Name | Hisashi Osawa |
| 4th Author's Affiliation | Ehime University(Ehime Univ.) |
| 5th Author's Name | Yoshihiro Okamoto |
| 5th Author's Affiliation | Ehime University(Ehime Univ.) |
| Date | 2020-12-03 |
| Paper # | MRIS2020-10 |
| Volume (vol) | vol.120 |
| Number (no) | MRIS-274 |
| Page | pp.pp.26-31(MRIS), |
| #Pages | 6 |
| Date of Issue | 2020-11-26 (MRIS) |