Optimal Precoding for Orthogonalized Spatial Multiplexing in Closed-Loop MIMO Systems
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Young-Tae | - |
dc.contributor.author | Lee, Heunchul | - |
dc.contributor.author | Park, Seokhwan | - |
dc.contributor.author | Lee, Inkyu | - |
dc.date.accessioned | 2021-09-09T03:52:26Z | - |
dc.date.available | 2021-09-09T03:52:26Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-10 | - |
dc.identifier.issn | 0733-8716 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/122609 | - |
dc.description.abstract | In this paper, we propose a new precoding algorithm for orthogonalized spatial multiplexing (OSM) systems over flat-fading multiple-input multiple-output (MIMO) channels. The OSM scheme was recently introduced for closed-loop MIMO systems which allows single symbol decodable maximum likelihood detection. To further improve the performance of the OSM system, we propose a new precoding method by maximizing the minimum Euclidean distance between constellation points in the effective channel. In order to efficiently identify the parameters of a precoder which maximizes the minimum distance, we introduce a partitioning approach. Through analysis, it is shown that one real value parameter and two bits are required for feedback information for precoding in 16-QAM systems. Simulation results demonstrate that our algorithm provides 9dB and 7.5dB gains at a bit error rate (BER) of 10(-4) over the conventional OSM systems for 4-QAM and 16-QAM, respectively. We also confirm that the performance of the proposed scheme is the same as that of the optimum closed-loop MIMO systems in terms of the minimum distance. Consequently, our precoding algorithm significantly improves the system performance with a small increase of feedback amount. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | WIRELESS COMMUNICATION | - |
dc.subject | PERFORMANCE | - |
dc.subject | CHANNELS | - |
dc.subject | CODES | - |
dc.title | Optimal Precoding for Orthogonalized Spatial Multiplexing in Closed-Loop MIMO Systems | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Inkyu | - |
dc.identifier.doi | 10.1109/JSAC.2008.081021 | - |
dc.identifier.wosid | 000259972900021 | - |
dc.identifier.bibliographicCitation | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, v.26, no.8, pp.1556 - 1566 | - |
dc.relation.isPartOf | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | - |
dc.citation.title | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | - |
dc.citation.volume | 26 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1556 | - |
dc.citation.endPage | 1566 | - |
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 | WIRELESS COMMUNICATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordPlus | CODES | - |
dc.subject.keywordAuthor | Closed-loop MIMO system | - |
dc.subject.keywordAuthor | precoding design | - |
dc.subject.keywordAuthor | ML receiver | - |
dc.subject.keywordAuthor | limited feedback | - |
dc.subject.keywordAuthor | minimum Euclidean distance | - |
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