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https://open.uns.ac.rs/handle/123456789/8193
Nаziv: | The MAP in LC concept for MTR decoding in multiple-head magnetic recording systems | Аutоri: | Djuric N. Šenk, Vojin |
Dаtum izdаvаnjа: | 1-јан-2013 | Čаsоpis: | IEEE AFRICON Conference | Sažetak: | The constrained capability of maximum-transitionrun (MTR) codes are well known in magnetic recording systems. Unfortunately, these codes possess just a modest error correcting ability and thus they have to be used in combination with proven and powerful error correcting codes. In modern, iterative decoding framework, two decoders exchange soft-information, in order to improve their decisions. Thus, the utilization of MTR codes in such framework requires some approaches for their soft-decision decoding. Recently, the MAP in LC method is proposed for such purpose, enabling propagation of soft-values through the MTR decoder. Substantial benefits have been noticed when the MAP in LC was used in a one-track MTR encoded E2PR4 magnetic recording channel. In this paper, performance and benefits of the MAP in LC, along with its two subversions, are considered over a multiple-track E2PR4 channel, encoded by the in-track MTR code. In case of the low-level inter-track interference, the subversion named as max-log MAP in LC shows nearly 0.85 dB of decoding gain, for BER = 10-5, when 4/5 (2, 8) MTR code was used. © 2013 IEEE. | URI: | https://open.uns.ac.rs/handle/123456789/8193 | ISBN: | 9781467359405 | ISSN: | 21530025 | DOI: | 10.1109/AFRCON.2013.6757845 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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