Non-Iterative Symbol-Wise Beamforming for MIMO-OFDM Systems
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyun-Ho | - |
dc.contributor.author | Ko, Young-Chai | - |
dc.date.accessioned | 2021-09-06T14:51:10Z | - |
dc.date.available | 2021-09-06T14:51:10Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2012-10 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107284 | - |
dc.description.abstract | In this paper, we propose a non-iterative symbolwise beamforming scheme for MIMO-OFDM systems, which can provide the performance approaching that of the iterative symbol-wise beamforming scheme and can reduce the computational complexity significantly for channels with a small number of strong channel taps. Simulation results show that our proposed scheme leads to a negligible performance loss compared with the iterative symbol-wise beamforming scheme regardless of spatial correlation or presence of co-channel interference. For realistic situations, we also consider the system designs to manage imperfect channel knowledge at the transmitter or receiver. First, we propose a limited feedback technique and a codebook design algorithm for symbol-wise beamforming in a spatially correlated frequency selective channel. Simulation results show that the proposed limited feedback technique can provide insignificant outage capacity loss compared with the symbol-wise beamforming scheme with perfect channel knowledge when the proposed codebook is adopted with a moderate number of feedback bits. Second, we propose a robust transceiver optimization for symbol-wise beamforming under channel uncertainty. From simulation results, we confirm that our proposed robust transceiver optimization can incur less degradation than the iterative and proposed symbol-wise beamforming schemes under the assumption of a bounded channel uncertainty model. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | KRONECKER MODEL | - |
dc.subject | SPACE DIVERSITY | - |
dc.subject | DESIGN | - |
dc.subject | TRANSMISSION | - |
dc.subject | CAPACITY | - |
dc.subject | CHANNELS | - |
dc.subject | INTERFERENCE | - |
dc.subject | PERFORMANCE | - |
dc.subject | FEEDBACK | - |
dc.title | Non-Iterative Symbol-Wise Beamforming for MIMO-OFDM Systems | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ko, Young-Chai | - |
dc.identifier.doi | 10.1109/TWC.2012.081612.120406 | - |
dc.identifier.scopusid | 2-s2.0-84867900644 | - |
dc.identifier.wosid | 000310340400037 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.11, no.10, pp.3788 - 3798 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.title | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 3788 | - |
dc.citation.endPage | 3798 | - |
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 | KRONECKER MODEL | - |
dc.subject.keywordPlus | SPACE DIVERSITY | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | TRANSMISSION | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordPlus | INTERFERENCE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FEEDBACK | - |
dc.subject.keywordAuthor | MIMO-OFDM | - |
dc.subject.keywordAuthor | symbol-wise beamforming | - |
dc.subject.keywordAuthor | imperfect channel knowledge | - |
dc.subject.keywordAuthor | limited feedback | - |
dc.subject.keywordAuthor | robust transceiver | - |
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