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Telfor Journal
2017, vol. 9, br. 1, str. 38-42
jezik rada: engleski
vrsta rada: neklasifikovan

Performance of 2D SOVA along and across track in shingled magnetic recording media
(naslov ne postoji na srpskom)
aDepartment of Electrical and Computer Engineering, Ahmadu Bello University, Zaria, Nigeria
bSchool of Electronics, Mathematics and Computing, Plymouth University, Plymouth, UK



(ne postoji na srpskom)
Serial Concatenation of Two Dimensional Soft Output Viterbi Algorithm (2D-SOVA) and regular Viterbi Algorithm (VA) for 2D equalisation and detection of Shingled Magnetic Recording (SMR) media provides excellent performance as compared to the use of 1 Dimensional (1D) maximum likelihood detector. In this paper, we implement and evaluate the performances of two versions of it. The first version performs 2D SOVA along the tracks to eliminate the effect of inter-symbol interference (ISI) and then the Viterbi detector across the tracks to remove inter-track interference (ITI). The second version carries out 2D-SOVA across the tracks and VA along the tracks. The results for high ITI and ISI show a better performance when using 2D-SOVA across the track with a small difference in computational complexity in favour of 2D-SOVA across the tracks.

Ključne reči

2D detection; maximum likelihood detection; shingled magnetic recording; SMR; soft output Viterbi algorithm; SOVA


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