Open AccessIterative readback‐aided detection for holographic data storage systems
Author(s) -
Nguyen C.D.,
Lee J.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.2096
Subject(s) - intersymbol interference , equaliser , computer science , holographic data storage , interference (communication) , computer data storage , channel (broadcasting) , patterned media , decoding methods , electronic engineering , algorithm , computer hardware , engineering , telecommunications , head (geology) , geomorphology , geology
Retrieving original user data from holographic data storage systems is mainly affected by two‐dimensional (2D) intersymbol interference; the minimisation of this interference not only improves the system performance, but it also increases the storage density for page‐oriented storage systems. An iterative detection that is supported by the readback signal is proposed. The decoded symbols are passed through a 2D partial response target before they are combined with the output of the equaliser, leading to the generation of a refined information source that improves the channel‐detection performance. The simulation results show that the proposed structure provides a gain of ∼1–2 dB; furthermore, the combinative quality of the proposed model and a page‐based search scheme were analysed as well.