Title:
Low-density parity-check codes for volume holographic memory systems
Low-density parity-check codes for volume holographic memory systems
| dc.contributor.author | Pishro-Nik, Hossein | en_US |
| dc.contributor.author | Rahnavard, Nazanin | en_US |
| dc.contributor.author | Ha, Jeongseok | en_US |
| dc.contributor.author | Fekri, Faramarz | en_US |
| dc.contributor.author | Adibi, Ali | en_US |
| dc.contributor.corporatename | Georgia Institute of Technology. Center for Organic Photonics and Electronics | en_US |
| dc.contributor.corporatename | Georgia Institute of Technology. School of Electrical and Computer Engineering | en_US |
| dc.date.accessioned | 2012-11-14T20:56:57Z | |
| dc.date.available | 2012-11-14T20:56:57Z | |
| dc.date.issued | 2003-02 | |
| dc.description | © 2003 Optical Society of America. The definitive version of this paper is available at: http://dx.doi.org/10.1364/AO.42.000861 | en_US |
| dc.description | DOI: 10.1364/AO.42.000861 | en_US |
| dc.description.abstract | We investigate the application of low-density parity-check (LDPC) codes in volume holographic memory (VHM) systems. We show that a carefully designed irregular LDPC code has a very good performance in VHM systems. We optimize high-rate LDPC codes for the nonuniform error pattern in holographic memories to reduce the bit error rate extensively. The prior knowledge of noise distribution is used for designing as well as decoding the LDPC codes. We show that these codes have a superior performance to that of Reed-Solomon (RS) codes and regular LDPC counterparts. Our simulation shows that we can increase the maximum storage capacity of holographic memories by more than 50 percent if we use irregular LDPC codes with soft-decision decoding instead of conventionally employed RS codes with hard-decision decoding. The performance of these LDPC codes is close to the information theoretic capacity | en_US |
| dc.identifier.citation | Pishro-Nik, H and Rahnavard, N and Ha, J and Fekri, F and Adibi, Ali, "Low-density parity-check codes for volume holographic memory systems," Applied Optics, 42, 5, 861-870 (February 10 2003) | en_US |
| dc.identifier.doi | 10.1364/AO.42.000861 | |
| dc.identifier.issn | 0003-6935 | |
| dc.identifier.uri | http://hdl.handle.net/1853/45355 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.publisher.original | Optical Society of America | en_US |
| dc.subject | Optics in computing | en_US |
| dc.subject | Information processing | en_US |
| dc.subject | Optical data storage | en_US |
| dc.subject | Holographic and volume memories | en_US |
| dc.title | Low-density parity-check codes for volume holographic memory systems | en_US |
| dc.type | Text | |
| dc.type.genre | Article | |
| dspace.entity.type | Publication | |
| local.contributor.author | Adibi, Ali | |
| local.contributor.author | Fekri, Faramarz | |
| local.contributor.corporatename | Center for Organic Photonics and Electronics | |
| relation.isAuthorOfPublication | 3f390cd1-919c-4946-af63-6f9f1e244776 | |
| relation.isAuthorOfPublication | f46b53e9-5ee4-4646-b71c-8bd223cd31c8 | |
| relation.isOrgUnitOfPublication | 43f8dc5f-0678-4f07-b44a-edbf587c338f |
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