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首页> 外文期刊>IEEE Transactions on Magnetics >A Soft-5/6 Modulation Code With Iterative ITI Subtraction Scheme in Multireader TDMR Systems
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A Soft-5/6 Modulation Code With Iterative ITI Subtraction Scheme in Multireader TDMR Systems

机译：多读取器TDMR系统中具有迭代ITI减法的Soft-5 / 6调制代码

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摘要

The huge growth of the consumer electronic industry is driving the need for achieving ultrahigh areal storage densities. 2-D magnetic recording is a promising high-density storage technology where the shingled writing technique is employed for increasing the track per inch (TPI) and achieving higher areal densities. Nevertheless, high TPI causes a reader to cover higher number of tracks, which leads to the intertrack interference (ITI); hence the system performance is severely deteriorated. Therefore, we first propose the soft-5/6 modulation code together with iterative ITI subtraction scheme. Here, the soft information encoding and decoding schemes operate based on Boolean logic circuit for using in the iterative system. Furthermore, we also propose to move the upper and lower readers closer to the center reader to avoid the ITI effect from their outer tracks, which will then be performed together with ITI subtraction scheme. Moreover, this proposed reading technique is also applied together with the soft-4/5 modulation code. The simulation results show that the proposed systems are superior to the conventional system, especially at high user density.
机译：消费电子行业的巨大增长推动了对实现超高面积存储密度的需求。二维磁记录是一种有前途的高密度存储技术，其中采用了叠写技术来增加每英寸磁道（TPI）并实现更高的面密度。然而，较高的TPI会使阅读器覆盖更多的磁道，从而导致磁道间干扰（ITI）；因此系统性能严重下降。因此，我们首先提出软5/6调制码以及迭代ITI减法方案。在此，软信息编码和解码方案基于在迭代系统中使用的布尔逻辑电路进行操作。此外，我们还建议将上下阅读器移近中心阅读器，以避免其外磁道产生ITI效应，然后将其与ITI减法方案一起执行。此外，该提议的读取技术也与soft-4 / 5调制码一起应用。仿真结果表明，所提出的系统优于常规系统，特别是在高用户密度下。

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