Title :
Reduced complexity maximum likelihood sequence estimation for multitrack high-density magnetic recording channels
Author :
Kurtas, Erozan ; Proakis, John G. ; Salehi, Masoud
Author_Institution :
Technol. & Eng. Dept., Quantum Corp., Shrewsbury, MA, USA
fDate :
7/1/1999 12:00:00 AM
Abstract :
In this paper we investigate the problem of designing reduced complexity detectors for multitrack high-density magnetic recording systems. The detectors derived in this work operate on superstate sets and carry several survivors for each set. We show that such a reduced state increased survivor approach provides near optimal performance to the maximum likelihood method, namely the Viterbi Algorithm (VA), but operate at a fractional complexity of the VA
Keywords :
digital magnetic recording; interference (signal); magnetic recording noise; maximum likelihood detection; maximum likelihood sequence estimation; Viterbi algorithm; detector design; high-density recording channels; magnetic recording channels; maximum likelihood sequence estimation; multitrack magnetic recording channels; reduced complexity MLSE; superstate sets; Algorithm design and analysis; Detection algorithms; Detectors; Interference; Life estimation; Magnetic heads; Magnetic recording; Maximum likelihood detection; Maximum likelihood estimation; Viterbi algorithm;
Journal_Title :
Magnetics, IEEE Transactions on
