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Adaptive Trellis Using Interim Maximum-Likelihood Detector Output for a Holographic Storage System
- Authors
- Kim, Gukhui; Kim, Jinyoung; Lee, Jaejin
- Issue Date
- Sep-2011
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.50, no.9
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 50
- Number
- 9
- ISSN
- 0021-4922
- Abstract
- The performance of partial response maximum likelihood (PRML) for holographic data storage can be reduced by asymmetric channel characteristics such as radial/tangential tilts. Therefore, we proposed the adaptive trellis scheme to improve performance. The proposed algorithm updates the reference branch values through using interim maximum-likelihood detector output, using the changed channel condition. Thus, this system guarantees better bit error rate performance than conventional PRML detection. (C) 2011 The Japan Society of Applied Physics
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Related Researcher
- Lee, Jae jin
- College of Information Technology (Department of Electronic Engineering)