Generalized belief propagation based TDMR detector and decoder

Chaitanya Kumar Matcha; Mohsen Bahrami; Shounak Roy; Shayan Garani Srinivasa; Bane Vasic

doi:10.1109/ISIT.2016.7541291

Generalized belief propagation based TDMR detector and decoder

Chaitanya Kumar Matcha, Mohsen Bahrami, Shounak Roy, Shayan Garani Srinivasa, Bane Vasic

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

9 Scopus citations

Abstract

Two dimensional magnetic recording (TDMR) achieves high areal densities by reducing the size of a bit comparable to the size of the magnetic grains resulting in two dimensional (2D) inter symbol interference (ISI) and very high media noise. Therefore, it is critical to handle the media noise along with the 2D ISI detection. In this paper, we tune the generalized belief propagation (GBP) algorithm to handle the media noise seen in TDMR. We also provide an intuition into the nature of hard decisions provided by the GBP algorithm. The performance of the GBP algorithm is evaluated over a Voronoi based TDMR channel model where the soft outputs from the GBP algorithm are used by a belief propagation (BP) algorithm to decode low-density parity check (LDPC) codes.

Original language	English (US)
Title of host publication	Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	210-214
Number of pages	5
ISBN (Electronic)	9781509018062
DOIs	https://doi.org/10.1109/ISIT.2016.7541291
State	Published - Aug 10 2016
Event	2016 IEEE International Symposium on Information Theory, ISIT 2016 - Barcelona, Spain Duration: Jul 10 2016 → Jul 15 2016

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
Volume	2016-August
ISSN (Print)	2157-8095

Other

Other	2016 IEEE International Symposium on Information Theory, ISIT 2016
Country/Territory	Spain
City	Barcelona
Period	7/10/16 → 7/15/16

ASJC Scopus subject areas

Theoretical Computer Science
Information Systems
Modeling and Simulation
Applied Mathematics

Access to Document

10.1109/ISIT.2016.7541291

Cite this

Matcha, C. K., Bahrami, M., Roy, S., Srinivasa, S. G., & Vasic, B. (2016). Generalized belief propagation based TDMR detector and decoder. In Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory (pp. 210-214). Article 7541291 (IEEE International Symposium on Information Theory - Proceedings; Vol. 2016-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT.2016.7541291

Generalized belief propagation based TDMR detector and decoder. / Matcha, Chaitanya Kumar; Bahrami, Mohsen; Roy, Shounak et al.
Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory. Institute of Electrical and Electronics Engineers Inc., 2016. p. 210-214 7541291 (IEEE International Symposium on Information Theory - Proceedings; Vol. 2016-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Matcha, CK, Bahrami, M, Roy, S, Srinivasa, SG & Vasic, B 2016, Generalized belief propagation based TDMR detector and decoder. in Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory., 7541291, IEEE International Symposium on Information Theory - Proceedings, vol. 2016-August, Institute of Electrical and Electronics Engineers Inc., pp. 210-214, 2016 IEEE International Symposium on Information Theory, ISIT 2016, Barcelona, Spain, 7/10/16. https://doi.org/10.1109/ISIT.2016.7541291

Matcha CK, Bahrami M, Roy S, Srinivasa SG, Vasic B. Generalized belief propagation based TDMR detector and decoder. In Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory. Institute of Electrical and Electronics Engineers Inc. 2016. p. 210-214. 7541291. (IEEE International Symposium on Information Theory - Proceedings). doi: 10.1109/ISIT.2016.7541291

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Generalized belief propagation based TDMR detector and decoder

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