DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jangho | ko |
dc.contributor.author | Choi, Junil | ko |
dc.contributor.author | Kang, Joonhyuk | ko |
dc.date.accessioned | 2023-02-17T08:00:31Z | - |
dc.date.available | 2023-02-17T08:00:31Z | - |
dc.date.created | 2022-12-02 | - |
dc.date.created | 2022-12-02 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.citation | IEEE WIRELESS COMMUNICATIONS LETTERS, v.12, no.2, pp.257 - 261 | - |
dc.identifier.issn | 2162-2337 | - |
dc.identifier.uri | http://hdl.handle.net/10203/305202 | - |
dc.description.abstract | In this letter, we aim to maximize the downlink sum-rate for multi-antenna orthogonal frequency division multiple access (OFDMA) systems with multiple reconfigurable intelligent surfaces (RISs). Due to the high non-convexity of the multiple RISs-aided systems, the sum-rate of the system is often dictated by the initial values of the optimization variables. We propose a novel harmony search-based alternating optimization (AO) algorithm to improve the AO algorithm by searching the high-quality initial value. In the numerical results, the proposed technique outperforms the AO algorithm with random initialization, making the proposed algorithm highly practical. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Harmony Search-based Optimization for Multi-RISs MU-MISO OFDMA Systems | - |
dc.type | Article | - |
dc.identifier.wosid | 000967242500001 | - |
dc.identifier.scopusid | 2-s2.0-85142811343 | - |
dc.type.rims | ART | - |
dc.citation.volume | 12 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 257 | - |
dc.citation.endingpage | 261 | - |
dc.citation.publicationname | IEEE WIRELESS COMMUNICATIONS LETTERS | - |
dc.identifier.doi | 10.1109/LWC.2022.3222455 | - |
dc.contributor.localauthor | Choi, Junil | - |
dc.contributor.localauthor | Kang, Joonhyuk | - |
dc.contributor.nonIdAuthor | Lee, Jangho | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Optimization | - |
dc.subject.keywordAuthor | Transmitting antennas | - |
dc.subject.keywordAuthor | Downlink | - |
dc.subject.keywordAuthor | Wireless communication | - |
dc.subject.keywordAuthor | Time-domain analysis | - |
dc.subject.keywordAuthor | Linear programming | - |
dc.subject.keywordAuthor | Array signal processing | - |
dc.subject.keywordAuthor | Reconfigurable intelligent surface | - |
dc.subject.keywordAuthor | OFDMA | - |
dc.subject.keywordAuthor | sum-rate maximization | - |
dc.subject.keywordAuthor | harmony search | - |
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