R&D: Simplified 2D Generalized Partial Response Target of Holographic Storage Channel

Applied Sciences has published an article written by Thien An Nguyen, and Jaejin Lee, Department of Information Communication Convergence Technology, Soongsil University, Seoul 06978, Korea.

Abstract: “With a high capacity and fast data access rate, holographic data storage (HDS) is a potential candidate for future storage systems. However, for page-oriented data processing, two-dimensional (2D) interference appears intensely in the HDS systems. Therefore, the new 2D generalized partial response (GPR) target is introduced to estimate the 2D interference. In addition, we also propose a method to analyze the 2D GPR target into two serial one-dimensional (1D) GPR targets. It makes us design a simple detection scheme composed of two serial 1D detectors instead of a complicated 2D detector. In simulations, the results show that our proposed scheme can improve the BER performance compared to the conventional 1D GPR target model.“