Paper Info
Title
Belief Propagation Based Multihead Multitrack Detection over Conventional and Bit-Patterned Media Storage Systems
Abstract
We propose a low complexity detection technique for multihead multitrack recording systems. By exploiting the sparseness of the two dimensional (2-D) partial response channel, we start with the development of an algorithm which performs belief propagation (BP) over the corresponding factor graph. We consider the BP-based detector not only for the partial response channel, but also for the more practical conventional media and bit-patterned media storage systems, with and without media noise. Compared to the maximum likelihood detector which has a prohibitively high complexity that is exponential with both the number of tracks and the number of ISI taps, the proposed detector has a much lower complexity and a fast parallel structure which come at a small performance penalty.
Year
DOI
Venue
2007
10.1109/CISS.2007.4298276
CISS
Keywords
Field
DocType
multihead multitrack detection,storage media,factor graph,multihead multitrack recording system,belief propagation,2-d partial response channel,magnetic recording,partial response channel,bit-patterned media storage system,multi-track detection,bit-patterned media,graph theory,partial response channels,viterbi algorithm,magnetic heads,storage system,computational complexity,intersymbol interference,detectors
Factor graph,Graph theory,Mathematical optimization,Patterned media,Computer science,Algorithm,Communication channel,Real-time computing,Detector,Viterbi algorithm,Belief propagation,Multitrack recording
Conference
ISBN
Citations 
PageRank 
1-4244-1037-1
0
0.34
References 
Authors
3
4
Name
Order
Citations
PageRank
Jun Hu11288.51
Tolga M. Duman235147.37
Erozan M. Kurtas3294.62
M. Fatih Erden4658.49