Optimization of LDPC Codes for Bit-Patterned Media Recording with Media Noise

被引：0
|
作者：
Kong, Lingjun [1 ,2 ]
Zhao, Shengmei [2 ]
Jiang, Ming [1 ]
Zhao, Chunming [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing, Jiangsu, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Coll Commun & Informat Engn, Nanjing, Jiangsu, Peoples R China
来源：
2016 16TH INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES (ISCIT) | 2016年
基金：
中国博士后科学基金;
关键词：
bit-pattered magnetic recording (BPMR); two-dimensional (2D) inter-symbol interference (ISI); LDPC code;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Challenges in bit-pattered magnetic recording (BPMR) include two-dimensional (2D) inter-symbol interference (ISI) constituted by both one-dimensional ISI and inter-track interference (ITI), and media noise arising from island position jitter (PJ) and island size fluctuations (SF) in both the down track and cross-track directions. A LDPC code optimization approach is proposed for BPMR channel with media noise, where a reduced-complexity 2D detector based on the iterative row column soft detection feedback with Gaussian approximation (IRCSDF-GA) detector is employed. Also, the threshold of the proposed LDPC codes is calculated for different percentage of media noise in BPMR. Simulations results show that about 03 dB performance gain can be achieved when BPMR is only suffered from the PJ.
引用
收藏
页码：105 / 108
页数：4
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