• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

Computer Engineering & Science ›› 2024, Vol. 46 ›› Issue (04): 571-579.

• High Performance Computing • Previous Articles     Next Articles

A survey of error correction codes in holographic storage

YU Qin1,Wu Fei1,ZHANG Meng2,XIE Chang-sheng1   

  1. (1.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074;
    2.School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China)
  • Received:2023-10-26 Revised:2023-12-24 Accepted:2024-04-25 Online:2024-04-25 Published:2024-04-17

Abstract: In the era of big data, the demand for high-density and large-capacity storage technology is increasing day by day. Unlike traditional storage technologies that record data bit by bit, holographic storage uses two-dimensional data pages as the unit for reading and writing, adopting a three-dimensional volume storage mode. With advantages such as high storage density, fast data conversion rate, energy efficiency, safety, and ultra-long-term preservation, holographic storage is expected to become the strong competitor for mass cold data storage. This paper focuses on phase-modulated collinear holographic storage and analyzes the current research status of error correction codes for holographic storage. A detailed introduction is provided to an reference beam-assisted low-density parity-check (LDPC) code scheme.


Key words: holographic storage, phase modulation, reliability, error correction code, low-density parity-check , code