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首页> 外文期刊>Electronics Letters >Design of 4/6 ITI-mitigating error correction modulation code for ultra-high-density bit-patterned media recording systems
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Design of 4/6 ITI-mitigating error correction modulation code for ultra-high-density bit-patterned media recording systems

机译:用于超高密度位图案媒体记录系统的4/6 ITI损坏纠错调制码的设计

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摘要

A design of 4/6 intertrack-interference (ITI)-mitigating error correction modulation code for bit-patterned media recording systems is proposed in this Letter. Generally, coding schemes in data storage devices are usually accomplished using a combination of error-correction coding and modulation coding. However, an interesting approach is that the modulation code itself has the capability of correcting errors. Such a modulation code design will reduce the total size and complexity of the data storage devices. In this Letter, the authors design a new 4/6 modulation code, where the code not only mitigates the effect of ITI but also maintains minimum Hamming distance of 2 to build up a trellis structure providing error correction capability of the proposed code. Simulation results show that the proposed design outperforms prior arts. For instance, the performance of the proposed design is better than that of a conventional 4/6 modulation code about 8 dB at a bit error rate of 10(-7)under 20% read-head offtrack for the area density of 4 Tb/in(2).
机译:在这封信中提出了一种设计4/6 interTrack干扰(ITI) - 用于位图案化媒体记录系统的纠错调制码。通常,数据存储设备中的编码方案通常使用纠错编码和调制编码的组合来完成。然而,有趣的方法是调制代码本身具有纠正错误的能力。这种调制码设计将降低数据存储设备的总大小和复杂性。在这封信中,作者设计了一个新的4/6调制代码,其中代码不仅可以减轻ITI的效果,而且还保持2的最小汉明距离,以建立一个Grellis结构,提供所提出的代码的纠错能力。仿真结果表明,建议的设计优于现有技术。例如,所提出的设计的性能优于传统的4/6调制码,以误码率为10(-7)的误码率为4 TB的区域密度为10(-7)的误码率。在(2)中。

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