Title :
A Low-Complexity High-Performance Modulation Code for Holographic Data Storage
Author :
Chen, Chi-Yun ; Chiueh, Tzi-Dar
Author_Institution :
Nat. Taiwan Univ., Taipei
Abstract :
We propose a new two-dimensional (2D) modulation code for holographic data storage (HDS) systems. This code has a code rate of 3/4 and is called 6:8 variable-weight (VW) modulation code. Simulation results show that the 6:8 VW modulation code achieves a bit-error-rate (BER) of 10-3 with a coding gain of 5 dB and it outperforms the conventional balanced codes. In addition, we propose a modified decoding process, called two-step correlation, to further reduce the decoder complexity.
Keywords :
correlation methods; decoding; error statistics; holographic storage; modulation coding; optical modulation; bit-error-rate; decoding process; holographic data storage; low-complexity high-performance modulation code; two-step correlation; variable-weight modulation code; Bit error rate; Block codes; Crosstalk; Data engineering; Decoding; Error correction codes; Holography; Memory; Modulation coding; Strips;
Conference_Titel :
Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-1377-5
Electronic_ISBN :
978-1-4244-1378-2
DOI :
10.1109/ICECS.2007.4511109
