| Presentation | 2007/9/28 A Study of Error Correction Ability of LDPC Code for Perpendicular Magnetic Recording Channel with Burst-like Signal Degradation Yasuaki NAKAMURA, Mitsuhiro NISHIMURA, Yoshihiro OKAMOTO, Hisashi OSAWA, Hiroaki MURAOKA, Yoshihisa NAKAMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The performance of the LDPC code is evaluated in a perpendicular magnetic recording channel with burst-like signal degradation under a long sector format of 4096 Bytes/sector. In this report, two kinds of systems are studied. One is the LDPC coding and iterative decoding system with a burst position and length detector. The other is the erasure error correction system using the RS code. The relationship between the burst length and the required SNR to achieve the error free detection for about 10M bit sequence is obtained for both systems by computer simulation. The relationship between the code rate and the error correction ability of LDPC code is also studied in a channel with burst-like signal degradation. The results show that LDPC code is resistant to the burst of about 2000 bits at the lower SNR. Accordingly, the LDPC coding and iterative decoding system can make up a higher code rate system by considering the probable burst length. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | perpendicular magnetic recording / burst-like signal degradation / long sector / LDPC code |
| Paper # | MR2007-23 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2007/9/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Error Correction Ability of LDPC Code for Perpendicular Magnetic Recording Channel with Burst-like Signal Degradation |
| Sub Title (in English) | |
| Keyword(1) | perpendicular magnetic recording |
| Keyword(2) | burst-like signal degradation |
| Keyword(3) | long sector |
| Keyword(4) | LDPC code |
| 1st Author's Name | Yasuaki NAKAMURA |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Ehime University() |
| 2nd Author's Name | Mitsuhiro NISHIMURA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Ehime University |
| 3rd Author's Name | Yoshihiro OKAMOTO |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Ehime University |
| 4th Author's Name | Hisashi OSAWA |
| 4th Author's Affiliation | Graduate School of Science and Engineering, Ehime University |
| 5th Author's Name | Hiroaki MURAOKA |
| 5th Author's Affiliation | RIEC, Tohoku University |
| 6th Author's Name | Yoshihisa NAKAMURA |
| 6th Author's Affiliation | RIEC, Tohoku University |
| Date | 2007/9/28 |
| Paper # | MR2007-23 |
| Volume (vol) | vol.107 |
| Number (no) | 243 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |