Soft-Input Soft-Output List Sphere Detection with a Probabilistic Radius Tightening
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jaeseok | - |
dc.contributor.author | Shim, Byonghyo | - |
dc.contributor.author | Kang, Insung | - |
dc.date.accessioned | 2021-09-06T16:59:31Z | - |
dc.date.available | 2021-09-06T16:59:31Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-08 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107744 | - |
dc.description.abstract | In this paper, we present a low-complexity list sphere detection algorithm for achieving near-optimal a posteriori probability (APP) detection in an iterative detection and decoding (IDD). Motivated by the fact that the list sphere decoding searching a fixed number of candidates is computationally inefficient in many scenarios, we design a criterion to search lattice points with non-vanishing likelihood and then derive a hypersphere radius satisfying this condition. Further, in order to exploit the original sphere constraint as it is instead of using necessary conditioned version, we combine a probabilistic tree pruning strategy and the proposed list sphere search. Two features, tightened hypersphere radius and probabilistic tree pruning, collaborate and improve the search efficiency in a complementary fashion. Through simulations on 4 x 4 MIMO system, we show that the proposed method provides substantial reduction in complexity while achieving negligible performance loss over the conventional list sphere detection. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | LATTICE CODE DECODER | - |
dc.subject | SPACE-TIME CODES | - |
dc.subject | MIMO DETECTION | - |
dc.subject | COMPLEXITY | - |
dc.subject | ALGORITHM | - |
dc.subject | CAPACITY | - |
dc.subject | SEARCH | - |
dc.subject | IMPLEMENTATION | - |
dc.subject | CONVERGENCE | - |
dc.subject | CHANNELS | - |
dc.title | Soft-Input Soft-Output List Sphere Detection with a Probabilistic Radius Tightening | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shim, Byonghyo | - |
dc.identifier.doi | 10.1109/TWC.2012.060212.111311 | - |
dc.identifier.scopusid | 2-s2.0-84865398040 | - |
dc.identifier.wosid | 000307904600017 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.11, no.8, pp.2848 - 2857 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.title | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 2848 | - |
dc.citation.endPage | 2857 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.subject.keywordPlus | LATTICE CODE DECODER | - |
dc.subject.keywordPlus | SPACE-TIME CODES | - |
dc.subject.keywordPlus | MIMO DETECTION | - |
dc.subject.keywordPlus | COMPLEXITY | - |
dc.subject.keywordPlus | ALGORITHM | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | SEARCH | - |
dc.subject.keywordPlus | IMPLEMENTATION | - |
dc.subject.keywordPlus | CONVERGENCE | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordAuthor | Sphere decoding | - |
dc.subject.keywordAuthor | Iterative detection and decoding | - |
dc.subject.keywordAuthor | a posteriori probability | - |
dc.subject.keywordAuthor | probabilistic radius tightening | - |
dc.subject.keywordAuthor | multiple-input multiple-output system | - |
dc.subject.keywordAuthor | complexity reduction | - |
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