DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kang, Joonhyuk | - |
dc.contributor.advisor | 강준혁 | - |
dc.contributor.author | Lee, Jangho | - |
dc.date.accessioned | 2023-06-26T19:33:31Z | - |
dc.date.available | 2023-06-26T19:33:31Z | - |
dc.date.issued | 2023 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1032920&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/309811 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2023.2,[ii, 29 p. :] | - |
dc.description.abstract | In this paper, 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 | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Reconfigurable intelligent surface▼aOFDMA▼asum-rate maximization▼aharmony search | - |
dc.subject | 지능형 반사판▼a직교 주파수 분할 다중 접속▼a합-전숑률 최대화▼a조화 검색 | - |
dc.title | Harmony search-based optimization for multi-RISs MU-MISO OFDMA systems | - |
dc.title.alternative | 다중 지능형 반사판이 배치된 다중 사용자 다중 안테나 OFDMA 시스템에서 조화 검색에 기반한 최적화 기법 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | 이장호 | - |
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