A Sparse-ON Pixel Two-Dimensional 6/8 Modulation Code
저밀도 ON 픽셀 2차원 6/8 변조부호

Myungha Hwang, Jaejin Lee
2013 The Journal of Korean Institute of Communications and Information Sciences  
Since holographic data storages read and write information on a volume and the information is processed per page, it has the advantage of high recording density and data transfer rate. However, there are two major drawbacks like 2-dimensional intersymbol interference and interpage interference as the density between pixels increases. Furthermore, a bright page that contains many ON pixels influences the reliable detection of the neighboring pages, which causes the less number of pages stored in
more » ... the storage volume. We propose a sparse-ON pixel two-dimensional modulation code with the code rate 6/8 for increasing the number of pages stored in the volume. The proposed code is compared to conventional 6/8 balanced code, and it shows similar or a little bit better performance than that of the balanced code. Therefore, the proposed code can increase the recording capacity without loss of the performance.
doi:10.7840/kics.2013.38a.10.833 fatcat:kohtvxs73bh6fnbneazxllijle