Low-complexity multiuser MIMO downlink system based on a small-sized CQI quantizer
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Jiho | - |
dc.contributor.author | Lee, Jong-Ho | - |
dc.contributor.author | Kim, Seong-Cheol | - |
dc.contributor.author | Kim, Younglok | - |
dc.date.available | 2020-02-29T09:46:28Z | - |
dc.date.created | 2020-02-05 | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 1687-1499 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/17540 | - |
dc.description.abstract | It is known that the conventional semi-orthogonal user selection based on a greedy algorithm cannot provide a globally optimal solution due to its semi-orthogonal property. To find a more optimal user set and prevent the waste of the feedback resource at the base station, we present a multiuser multiple-input multiple-output system using a random beamforming (RBF) scheme, in which one unitary matrix is used. To reduce feedback overhead for channel quality information (CQI), we propose an efficient CQI quantizer based on a closed-form expression of expected SINR for selected users. Numerical results show that the RBF with the proposed CQI quantizer provides better throughput than conventional systems under minor levels of feedback. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER INTERNATIONAL PUBLISHING AG | - |
dc.relation.isPartOf | EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING | - |
dc.subject | LIMITED FEEDBACK | - |
dc.subject | BROADCAST CHANNELS | - |
dc.subject | CAPACITY | - |
dc.subject | PERFORMANCE | - |
dc.title | Low-complexity multiuser MIMO downlink system based on a small-sized CQI quantizer | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000306486500001 | - |
dc.identifier.doi | 10.1186/1687-1499-2012-36 | - |
dc.identifier.bibliographicCitation | EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, pp.1 - 15 | - |
dc.identifier.scopusid | 2-s2.0-84872846004 | - |
dc.citation.endPage | 15 | - |
dc.citation.startPage | 1 | - |
dc.citation.title | EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Ho | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | LIMITED FEEDBACK | - |
dc.subject.keywordPlus | BROADCAST CHANNELS | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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