Abstract
An enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding is proposed for four-level holographic data storage systems. While the previous four-ary modulation codes focus on preventing maximum two-dimensional intersymbol interference patterns, the proposed four-ary modulation code aims at maximizing the coding gains for better bit error rate performances. For achieving significant coding gains from the four-ary modulation codes, we design a new 2/3 four-ary modulation code in order to enlarge the free distance on the trellis through extensive simulation.The free distance of the proposed four-ary modulation code is extended from 1.21 to 2.04 compared with that of the conventional four-ary modulation code. The simulation result shows that the proposed four-ary modulation code has more than 1 dB gains compared with the conventional four-ary modulation code.
| Original language | English |
|---|---|
| Article number | 09NA06 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 56 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2017 Sep 1 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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Enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding for four-level holographic data storage systems. / Kong, Gyuyeol; Choi, Sooyong.
In: Japanese Journal of Applied Physics, Vol. 56, No. 9, 09NA06, 01.09.2017.Research output: Contribution to journal › Article
TY - JOUR
T1 - Enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding for four-level holographic data storage systems
AU - Kong, Gyuyeol
AU - Choi, Sooyong
PY - 2017/9/1
Y1 - 2017/9/1
N2 - An enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding is proposed for four-level holographic data storage systems. While the previous four-ary modulation codes focus on preventing maximum two-dimensional intersymbol interference patterns, the proposed four-ary modulation code aims at maximizing the coding gains for better bit error rate performances. For achieving significant coding gains from the four-ary modulation codes, we design a new 2/3 four-ary modulation code in order to enlarge the free distance on the trellis through extensive simulation.The free distance of the proposed four-ary modulation code is extended from 1.21 to 2.04 compared with that of the conventional four-ary modulation code. The simulation result shows that the proposed four-ary modulation code has more than 1 dB gains compared with the conventional four-ary modulation code.
AB - An enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding is proposed for four-level holographic data storage systems. While the previous four-ary modulation codes focus on preventing maximum two-dimensional intersymbol interference patterns, the proposed four-ary modulation code aims at maximizing the coding gains for better bit error rate performances. For achieving significant coding gains from the four-ary modulation codes, we design a new 2/3 four-ary modulation code in order to enlarge the free distance on the trellis through extensive simulation.The free distance of the proposed four-ary modulation code is extended from 1.21 to 2.04 compared with that of the conventional four-ary modulation code. The simulation result shows that the proposed four-ary modulation code has more than 1 dB gains compared with the conventional four-ary modulation code.
UR - http://www.scopus.com/inward/record.url?scp=85028709378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028709378&partnerID=8YFLogxK
U2 - 10.7567/JJAP.56.09NA06
DO - 10.7567/JJAP.56.09NA06
M3 - Article
VL - 56
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9
M1 - 09NA06
ER -