MTR decoding employing MAP algorithm in Boolean logic circuits

Author

Djuric, Nemanja ; Senk, V.

Author_Institution

Fac. of Tech. Sci., Univ. of Novi Sad, Novi Sad, Serbia

fYear

2012

fDate

20-22 Nov. 2012

Firstpage

803

Lastpage

806

Abstract

Soft-decision decoding of maximum-transitionrun (MTR) codes have been required in order to utilize those codes in modern data storage systems. The maximum a posteriori (MAP) algorithm, based on Bayesian algorithm, computing a posteriori information using set of valid MTR codewords, already has been presented. The MAP method proves as a valuable for the MTR decoding in several magnetic recording applications. In this paper, the MAP approach has been considered for utilization in basic Boolean logic circuits, trying to assemble a new low-complex and soft-decision MTR decoder. The proposed idea was considered with simple and well known rate 4/5 (2, k = 8) MTR code, without loosing in generality, over E²PR4 magnetic recording channel.

Keywords

Boolean functions; logic circuits; magnetic recording; maximum likelihood estimation; storage management chips; Bayesian algorithm; Boolean logic circuits; MAP algorithm; MTR codewords; MTR decoding; data storage systems; magnetic recording channel; maximum a posteriori algorithm; maximum-transitionrun codes; soft-decision decoding; Approximation methods; Complexity theory; Decoding; Logic circuits; Magnetic recording; Signal to noise ratio; Telecommunications; MTR codes; constrained coding; soft-decision;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2012 20th

Conference_Location

Belgrade

Print_ISBN

978-1-4673-2983-5

Type

conf

DOI

10.1109/TELFOR.2012.6419329

Filename

6419329