Please use this identifier to cite or link to this item:
https://doi.org/10.1109/20.539239
DC Field | Value | |
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dc.title | Modulation codes for precoded partial response channels | |
dc.contributor.author | Lee, Y.X. | |
dc.contributor.author | Krachkovsky, V. | |
dc.contributor.author | Liu, B. | |
dc.date.accessioned | 2014-11-28T06:50:03Z | |
dc.date.available | 2014-11-28T06:50:03Z | |
dc.date.issued | 1996 | |
dc.identifier.citation | Lee, Y.X.,Krachkovsky, V.,Liu, B. (1996). Modulation codes for precoded partial response channels. IEEE Transactions on Magnetics 32 (5 PART 1) : 3986-3988. ScholarBank@NUS Repository. <a href="https://doi.org/10.1109/20.539239" target="_blank">https://doi.org/10.1109/20.539239</a> | |
dc.identifier.issn | 00189464 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/112716 | |
dc.description.abstract | [d, k] Modulation codes for 1/(1 @ ⊕ 2) preceded PR4 channels (PPR4) and 1/(1 ⊕ D ⊕D2 ⊕ D3) preceded EPR4 channels (PEPR4) are proposed in this paper. They differ from conventional (d, k) constrained codes in the sense that they provide PPR with a direct control over separation between transitions during writing and the number of consecutive zero-samples during reading. Their Finite State Machines (FSM), which have the same Shannon Capacity as their counterparts of (d, k) codes, are constructed. For comparison with the 2/3 (1,7) code, a 2/3 [1, 6] code for PPR4 and a 2/3 [1, 5] code for PEPR4 are designed, they have a 5-state encoder and 8-bit decoding window, and an 8-state encoder and 9-bit decoding window, respectively. Their power spectra are calculated. As an example, error rate performances of (1, 7) PR4ML, (1, 7) PPR4ML, and [1, 6] PPR4ML are simulated under the Lorentzian model with both medium and electronic noises at various channel recording density. The result shows that the [1, 6] PPR4ML outperforms both the (1,7) PR4ML and the (1,7) PPR4ML consistently. More importantly, the [d, k] preceded PR (PPR) prevents error propagation which (1, 7) PR may suffer from, and deals with non-linearity more effectively than (1, 7) PPR. The technique presented in this paper is applicable to other extended PPR or precoded generalized PR (PGPR). © 1996 IEEE. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/20.539239 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | DATA STORAGE INSTITUTE | |
dc.description.doi | 10.1109/20.539239 | |
dc.description.sourcetitle | IEEE Transactions on Magnetics | |
dc.description.volume | 32 | |
dc.description.issue | 5 PART 1 | |
dc.description.page | 3986-3988 | |
dc.description.coden | IEMGA | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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