GOALI : Collaborative Proposal: Advanced Coding and Signal Processing for Magnetic Recording: From Theory to Implementation

集成、混合和复杂系统凯斯西部储备大学张新苗德克萨斯农工大学Krishna Narayanan GOALI：协作提案：用于磁记录的高级编码和信号处理：从理论到实现本研究的目标是开发实用的软判决里德-所罗门译码算法、信号处理算法和相应的高效硬件实现，以演示一种能够支持每平方英寸TB记录密度的新型读取通道体系结构。其方法是将理论开发与硬件架构设计相结合，以开发实用的高性能系统。智能优点：在本研究中，算法和硬件共同设计，以实现和评估新颖的里德-所罗门码的软判决译码算法。与软判决译码算法协同工作的均衡是另一个重点。工作分为三个方面：(1)结合代数软判决译码和广义最小距离译码的软判决里德-所罗门译码算法的设计；(2)高性能和硬件友好的软判决译码和均衡的集成硬件结构和算法设计；以及(3)针对磁记录通道而不是更广泛的应用的简化的通道模型而设计的高效算法的设计。与一家磁盘驱动器制造商的合作为行业提供了技术转移的机会。该项目还为学生创造了通过实习和定期会议与行业合作者互动的机会。这项研究可能会对使用里德-所罗门码的其他应用产生影响，如光学记录、光盘和DVD播放器、深空通信和高速调制解调器。

Integrative, Hybrid and Complex SystemsXinmiao Zhang, Case Western Reserve UniversityKrishna Narayanan, Texas A&M UniversityGOALI: Collaborative Proposal: Advanced Coding and Signal Processing for Magnetic Recording: From Theory to ImplementationThe objective of this research is to develop practical soft-decision Reed-Solomon decoding algorithms, signal processing algorithms and corresponding efficient hardware implementations to demonstrate a novel read-channel architecture that can support recording densities of a terabyte per square-inch. The approach is to integrate theoretical development with the design of a hardware architecture such that practical high-performance systems can be developed.Intellectual Merit: In this research, algorithms and hardware are jointly designed to allow the implementation and evaluation of novel soft-decision decoding algorithms for Reed-Solomon codes. Equalization designed to work in tandem with the soft-decision decoding algorithm is another focus. The work falls into three areas: (1) design of a soft-decision Reed-Solomon decoding algorithm that combines algebraic soft-decision decoding with generalized minimum distance decoding; (2) integrated hardware architecture and algorithm design for high-performance and hardware-friendly soft-decision decoding and equalization; and (3) design of efficient algorithms tailored to magnetic recording channels rather than to simplified channel models for more general applications.Broader Impacts: The research has the potential to help the recording industry make the critical choice of whether to retain the use of Reed-Solomon codes for read channels or to use other codes. The collaboration with a disk drive manufacturer provides opportunities for technology transfer to industry. The project also creates opportunities for students to interact with industry collaborators through internships and regular meetings. The research has the potential for impact other applications where Reed-Solomon codes are used, such as optical recording, compact disk and DVD players, deep-space communications, and high-speed modems.