移动通信2025，Vol.49Issue(11)：130-135,6.DOI:10.3969/j.issn.1006-1010.20240709-0002
硬件损伤下多RIS辅助无线供电CF-mMIMO频谱效率分析
Spectral Efficiency Analysis of Multi-RIS-Aided Wireless Power Transfer in CF-mMIMO Systems with Hardware Impairments
摘要
Abstract
Reconfigurable intelligent surfaces(RIS)have demonstrated significant potential in wireless power transfer(WPT)systems by enhancing both harvested energy and spectral efficiency(SE).This study investigates the SE of RIS-aided cell-free massive MIMO(CF-mMIMO)systems for wireless power transfer under hardware impairments.A closed-form expression for the uplink SE is derived using large-scale fading decoding.Simulation results reveal that as the number of access points increases,the impact of hardware impairments on the SE of user equipment(UE)becomes more pronounced.Consequently,equipping UE with high-quality hardware components is critical for practical deployments.Notably,the integration of RIS not only boosts harvested energy and SE but also offers the potential to significantly reduce hardware and energy costs.关键词
去蜂窝大规模MIMO/RIS/硬件损伤/WPT/大尺度衰落解码/SEKey words
cell-free massive MIMO/reconfigurable intelligent surfaces/hardware impairments/wireless power transfer/large-scale fading decoding/spectral efficiency分类
信息技术与安全科学引用本文复制引用
于晓姣,孙强,陈晓敏,黄勋..硬件损伤下多RIS辅助无线供电CF-mMIMO频谱效率分析[J].移动通信,2025,49(11):130-135,6.基金项目
国家自然科学基金"基于RIS稀疏信道调控的近海无线通信理论与方法"(62371262) （62371262）
江苏省重点研发计划"海域活动基站及天地协同组网覆盖技术研发"(BE2021013-1) （BE2021013-1）
南通市重点研发计划项目"面向6G广域通信的动中通系统关键技术及仿真平台研发"(GZ2024002) （GZ2024002）
