dc.contributor.author |
Proß, Wolfgang |
|
dc.contributor.author |
Quint, Franz |
|
dc.contributor.author |
Oteșteanu, Marius |
|
dc.date.accessioned |
2020-03-30T08:06:42Z |
|
dc.date.accessioned |
2021-03-01T08:44:08Z |
|
dc.date.available |
2020-03-30T08:06:42Z |
|
dc.date.available |
2021-03-01T08:44:08Z |
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dc.date.issued |
2011 |
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dc.identifier.citation |
Proß, Wolfgang. Design of short irregular LDPC codes based on a constrained Downhill-Simplex method. Timişoara: Editura Politehnica, 2011 |
en_US |
dc.identifier.uri |
http://primo.upt.ro:1701/primo-explore/search?query=any,contains,Design%20of%20short%20irregular%20LDPC%20codes%20based%20on%20a%20constrained%20Downhill-Simplex%20method&tab=default_tab&search_scope=40TUT&vid=40TUT_V1&lang=ro_RO&offset=0 Link Primo |
|
dc.description.abstract |
In this paper we present an optimization procedure for the design of irregular Low-Density Parity-Check (LDPC) codes with short blocklength. For the optimization of the Symbol-Node Degree-Distribution (SNDD) of an irregular LDPC code we adapted the complete DHS-algorithm to the constrained problem. This is in contrast to [1], where the authors only applied a simplified version of the Downhill-Simplex (DHS) method. Furthermore our optimization procedure comprises several rounds including differently initialized simplezes in order to prevent from converging to a local minimum. Compared to simulation-results based on the simplified DHS-method provided in [1] the performance of our designed LDPC code shows a gain up to 0.3dB for the Bit-Error-Ratio (BER) and 0.2dB for the Word-Error-Ratio (WER). |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Timişoara:Editura Politehnica |
en_US |
dc.relation.ispartofseries |
Seria electronică şi telecomunicaţii;Tom 56(70), fasc. 2 (2011) |
|
dc.title |
Design of short irregular LDPC codes based on a constrained Downhill-Simplex method [articol] |
en_US |
dc.type |
Article |
en_US |