DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jun, Seongbae | ko |
dc.contributor.author | Kwon, Girim | ko |
dc.contributor.author | Park, Hyuncheol | ko |
dc.date.accessioned | 2022-11-21T06:01:29Z | - |
dc.date.available | 2022-11-21T06:01:29Z | - |
dc.date.created | 2022-11-18 | - |
dc.date.created | 2022-11-18 | - |
dc.date.created | 2022-11-18 | - |
dc.date.issued | 2022-10 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.71, no.10, pp.10782 - 10795 | - |
dc.identifier.issn | 0018-9545 | - |
dc.identifier.uri | http://hdl.handle.net/10203/300262 | - |
dc.description.abstract | Millimeter wave systems are expected to provide several Gbps data rate with large bandwidth. To exploit wideband channels, mitigating inter-symbol interference (ISI) is a challenging problem. Most of the existing approaches employ multi-carrier modulation, in which a baseband beamformer is used per subcarrier, resulting in a significant number of computations. To make an energy-efficient system with a low computational complexity, we propose a single carrier hybrid beamforming scheme equipped with multi-tap analog beamformer that can mitiagte ISI in analog domain so that a simple baseband beamformer can be used. Our design aims to maximize the achievable sum rate of multi-user uplink system, and optimizes the beamforming matrix with a complex circle manifold-based conjugate gradient algorithm with a proposed initialization allowing fast convergence. Considering the baseband and circuit power consumption, the proposed scheme achieves a higher energy efficiency than conventional beamforming schemes in practical transmit power region. In addition, we find a sufficient condition for the numbers of antennas and analog beamformer taps that can completely eliminate both inter-symbol and inter-stream interferences. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Energy-Efficient Multi-Tap Single Carrier Hybrid Beamforming in Uplink Wideband Millimeter Wave Systems | - |
dc.type | Article | - |
dc.identifier.wosid | 000870332400045 | - |
dc.identifier.scopusid | 2-s2.0-85133814245 | - |
dc.type.rims | ART | - |
dc.citation.volume | 71 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 10782 | - |
dc.citation.endingpage | 10795 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | - |
dc.identifier.doi | 10.1109/tvt.2022.3187841 | - |
dc.contributor.localauthor | Park, Hyuncheol | - |
dc.contributor.nonIdAuthor | Kwon, Girim | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Array signal processing | - |
dc.subject.keywordAuthor | Radio frequency | - |
dc.subject.keywordAuthor | Wideband | - |
dc.subject.keywordAuthor | Baseband | - |
dc.subject.keywordAuthor | Uplink | - |
dc.subject.keywordAuthor | Symbols | - |
dc.subject.keywordAuthor | Antenna arrays | - |
dc.subject.keywordAuthor | Hybrid beamforming | - |
dc.subject.keywordAuthor | millimeter wave systems | - |
dc.subject.keywordAuthor | multi-tap analog beamformer | - |
dc.subject.keywordAuthor | single carrier | - |
dc.subject.keywordAuthor | wideband | - |
dc.subject.keywordPlus | MASSIVE MIMO | - |
dc.subject.keywordPlus | DESIGN | - |
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