DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Gilwon | ko |
dc.contributor.author | Sung, Youngchul | ko |
dc.date.accessioned | 2018-05-24T02:25:39Z | - |
dc.date.available | 2018-05-24T02:25:39Z | - |
dc.date.created | 2017-12-19 | - |
dc.date.created | 2017-12-19 | - |
dc.date.issued | 2018-04 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON COMMUNICATIONS, v.66, no.4, pp.1481 - 1495 | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | http://hdl.handle.net/10203/242281 | - |
dc.description.abstract | In this paper, a new two-phase-feedback-based user-scheduling-and-beamforming method is proposed for multi-user multiple-input multiple-output downlink in the context of two-stage beamforming. The key ideas of the proposed method are: 1) to use a set of orthogonal reference beams and construct a cone around each reference beam to select "nearly-optimal" semi-orthogonal users based only on channel quality indicator feedback; and 2) to apply post-user-selection beam design with zero-forcing beamforming (ZFBF) based on channel state information (CSI) feedback only from the selected users. It is proven that the proposed scheduling-and-beamforming method is asymptotically optimal as the number of users increase. Furthermore, the proposed scheduling-and-beamforming method almost achieves the performance of the existing semi-orthogonal user selection with ZFBF that requires full CSI for all users, with a significantly reduced amount of required channel information which is even less than that required by random beamforming. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | DOWNLINK | - |
dc.subject | SYSTEMS | - |
dc.subject | DESIGN | - |
dc.subject | FEEDBACK | - |
dc.subject | SELECTION | - |
dc.subject | CAPACITY | - |
dc.title | A New Approach to User Scheduling in Massive Multi-User MIMO Broadcast Channels | - |
dc.type | Article | - |
dc.identifier.wosid | 000430406900011 | - |
dc.identifier.scopusid | 2-s2.0-85039805262 | - |
dc.type.rims | ART | - |
dc.citation.volume | 66 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 1481 | - |
dc.citation.endingpage | 1495 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.identifier.doi | 10.1109/TCOMM.2017.2786670 | - |
dc.contributor.localauthor | Sung, Youngchul | - |
dc.contributor.nonIdAuthor | Lee, Gilwon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Multi-user MIMO | - |
dc.subject.keywordAuthor | user scheduling | - |
dc.subject.keywordAuthor | two-phase feedback | - |
dc.subject.keywordAuthor | two-stage beamforming | - |
dc.subject.keywordPlus | DOWNLINK | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | FEEDBACK | - |
dc.subject.keywordPlus | SELECTION | - |
dc.subject.keywordPlus | CAPACITY | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.