New RIS-assisted SSK Schemes with Passive Beamforming using Channel-dependent RIS Partitioning
學年 113
學期 1
出版（發表）日期 2024-12-12
作品名稱 New RIS-assisted SSK Schemes with Passive Beamforming using Channel-dependent RIS Partitioning
作品名稱（其他語言）
著者 Lee, Kuang-chi
單位
出版者
著錄名稱、卷期、頁數 IEEE Communications Letters
摘要 This letter presents new phase configuration schemes for systems employing reconfigurable intelligent surface (RIS)-assisted space shift keying (SSK) signaling with passive beamforming (RIS-SSK-PB). Unlike most RIS-assisted SSK schemes, which necessitate adjusting the RIS phase configuration at the symbol rate, the RIS-SSK-PB scheme permits phase adjustments at a slower rate, provided it is not slower than the inverse of the channel coherence time. This approach significantly reduces system overhead and mitigates hardware constraints. The main novelty in the proposed schemes lies in the idea of optimized channel-dependent RIS partitioning. Two RIS-partitioning schemes are first proposed and formulated as mixed-integer linear programming (MILP) problems. Suboptimal algorithms based on linear programming relaxation are subsequently presented to achieve much lower complexity with negligible performance degradation. Extensive numerical simulations demonstrated the superior performance of the proposed schemes.
關鍵字 Transmitting antennas;Indexes;Picture archiving and communication systems;Vectors;Symbols;Minimax techniques;Array signal processing;Safety;Receiving antennas;Hardware
語言 en
ISSN 1558-2558
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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