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Channel Coding Methods for Non-Volatile Memories

机译:非易失性存储器的信道编码方法

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摘要

Non-volatile memories (NVMs) have emerged as the primary replacement of hard-disk drives for a variety of storage applications, including personal electronics, mobile computing, intelligent vehicles, enterprise storage, data warehousing, and data-intensive computing systems. Channel coding schemes are a necessary tool for ensuring target reliability and performance of NVMs. However, due to operational asymmetries in NVMs, conventional coding approaches - commonly based on designing for the Hamming metric - no longer apply. Given the immediate need for practical solutions and the shortfalls of existing methods, the fast-growing discipline of coding for NVMs has resulted in several key innovations that not only answer the needs of modern storage systems but also directly contribute to the analytical toolbox of coding theory at large. This monograph discusses recent advances in coding for NVMs, covering topics such as error correction coding based on novel algebraic and graph-based methods, write-once memory (WOM) codes, rank modulation, and constrained coding. Our goal in this monograph is multifold: to illuminate the advantages - as well as challenges - associated with modern NVMs, to present a succinct overview of several exciting recent developments in coding for memories, and, by presenting numerous potential research directions, to inspire other researchers to contribute to this timely and thriving discipline.
机译:非易失性存储器(NVM)已经成为硬盘驱动器的主要替代品,用于各种存储应用程序,包括个人电子产品,移动计算,智能车辆,企业存储,数据仓库和数据密集型计算系统。通道编码方案是确保NVM目标可靠性和性能的必要工具。但是,由于NVM中的操作不对称,通常不再基于常规编码方法(通常基于针对汉明度量的设计)。鉴于对实际解决方案的迫切需求和现有方法的不足,NVM编码的快速增长学科带来了多项关键创新,这些创新不仅满足了现代存储系统的需求,而且直接为编码理论的分析工具箱做出了贡献大体上。本专题讨论了NVM编码的最新进展,涵盖了诸如基于新颖的代数和基于图的方法的纠错编码,一次写入存储器(WOM)码,秩调制和约束编码等主题。我们在此专着中的目标是多重的​​:阐明现代NVM的优点-以及挑战-简要概述存储器编码方面的一些令人振奋的最新进展,并通过提出众多潜在的研究方向来启发其他方面研究人员为这一及时而蓬勃发展的学科做出了贡献。

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  • 来源
    《Foundations and trends in communications and information theory》 |2016年第1期|13-57-1315-9395-111113-117119121-135A1|共129页
  • 作者

    Lara Dolecek; Frederic Sala;

  • 作者单位

    Department of Electrical Engineering University of California, Los Angeles Los Angeles, CA, 90095-1594;

    Department of Electrical Engineering University of California, Los Angeles Los Angeles, CA, 90095-1594;

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  • 正文语种 eng
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