DC Field | Value | Language |
---|---|---|
dc.contributor.author | JEON, YOSEB | - |
dc.contributor.author | DO, HEEDONG | - |
dc.contributor.author | HONG, SONGNAM | - |
dc.contributor.author | LEE, NAMYOON | - |
dc.date.accessioned | 2019-05-24T09:10:15Z | - |
dc.date.available | 2019-05-24T09:10:15Z | - |
dc.date.created | 2019-03-12 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/98917 | - |
dc.description.abstract | In this paper, we propose computationally efficient yet near-optimal soft-output detection methods for coded millimeter-wave (mm Wave) multiple-input-multiple-output (MIMO) systems with low-precision analog-to-digital converters (ADCs). The underlying idea of the proposed methods is to construct an extremely sparse inter-symbol-interference channel model by jointly exploiting the delay-domain sparsity in mm Wave channels and a high quantization noise caused by low-precision ADCs. Then, we harness this sparse channel model to create a trellis diagram with a reduced number of states and a factor graph with very sparse edge connections, which are used for the computationally efficient soft-output detection methods. Using the reduced trellis diagram, we present a soft-output detection method that computes the log-likelihood ratios (LLRs) of coded bits by optimally combining the quantized received signals obtained from multiple receive antennas using a forward-and-backward algorithm. To reduce the computational complexity further, we also present a low-complexity detection method using the sparse factor graph to compute the LLRs in an iterative fashion based on a belief propagation algorithm. Simulations results demonstrate that the proposed soft-output detection methods provide significant frame-error-rates gains compared with the existing frequency-domain equalization techniques in a coded mmWave MIMO system using one-or two-bit ADCs. | - |
dc.language | English | - |
dc.publisher | IEEE | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.title | Soft-Output Detection Methods for Sparse Millimeter-Wave MIMO Systems With Low-Precision ADCs | - |
dc.type | Article | - |
dc.identifier.doi | 10.1109/TCOMM.2019.2892048 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON COMMUNICATIONS, v.67, no.4, pp.2822 - 2836 | - |
dc.identifier.wosid | 000465242700016 | - |
dc.citation.endPage | 2836 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 2822 | - |
dc.citation.title | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.citation.volume | 67 | - |
dc.contributor.affiliatedAuthor | JEON, YOSEB | - |
dc.contributor.affiliatedAuthor | DO, HEEDONG | - |
dc.contributor.affiliatedAuthor | LEE, NAMYOON | - |
dc.identifier.scopusid | 2-s2.0-85064653069 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Millimeter wave communications | - |
dc.subject.keywordAuthor | multiple-input-multiple-output (MIMO) | - |
dc.subject.keywordAuthor | low-precision analog-to-digital converter (ADC) | - |
dc.subject.keywordAuthor | soft-output detection | - |
dc.subject.keywordAuthor | time-domain equalization | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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