Open AccessIterative detection supported by extrinsic information for holographic data storage systems
Author(s) -
Nguyen C.D.,
Lee J.
Publication year - 2015
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.2015.2308
Subject(s) - holographic data storage , soft output viterbi algorithm , interference (communication) , computer science , viterbi algorithm , computer data storage , holography , optical storage , electronic engineering , algorithm , real time computing , computer hardware , decoding methods , engineering , telecommunications , channel (broadcasting) , optics , physics , sequential decoding , operating system , block code
A new model in which an iterative detection is supported by extrinsic information from equalisers is proposed. Furthermore, the system performance involving extrinsic information from an opposite direction one‐dimensional soft output Viterbi algorithm is examined. The work is applied to holographic data storage (HDS) systems. The HDS systems are well known as a future storage system because of their extremely large storage capacity and high data transfer rates. However, the system faces two‐dimensional interference challenges. The results show that the proposed model vastly improves the performance of the HDS system under severe interference.