IRS

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UAV-Mounted Intelligent Reflecting Surface in Maritime Wireless Powered Communication Network
《China Communications》2025年第3期254-269,共16页Liu Yuan Han Fengxia Zhao Shengjie 
supported in part by the National Key R&D Program of China 2023YFC3806000 and 2023YFC3806002;in part by the National Natural Science Foundation of China under Grant 61936014,62201388 and 62371342;in part by Shanghai Municipal Science and Technology Major Project No.2021SHZDZX0100;in part by Shanghai Science and Technology Innovation Action Plan Project 22511105300;in part by Natural Science Foundation of Shanghai:22ZR1463400.
Intelligent reflecting surface(IRS)assisted with the wireless powered communication network(WPCN)can enhance the desired signal energy and carry out the power-sustaining problem in ocean monitoring systems.In this pap...
关键词：full-duplex IRS joint optimization TDMA UAV WPCN 
Joint Active and Passive Beamforming Design in Intelligent Reflecting Surface(IRS)-Assisted Covert Communications:A Multi-Agent DRL Approach
《China Communications》2024年第9期11-26,共16页Gao Ang Ren Xiaoyu Deng Bin Sun Xinshun Zhang Jiankang 
supported by the Key Laboratory of Near Ground Detection and Perception Technology(No.6142414220406 and 6142414210101);Shaanxi and Taicang Keypoint Research and Invention Program(No.2021GXLH-01-15 and TC2019SF03)。
Intelligent Reflecting Surface(IRS),with the potential capability to reconstruct the electromagnetic propagation environment,evolves a new IRSassisted covert communications paradigm to eliminate the negligible detecti...
关键词：covert communications deep reinforcement learning intelligent reflecting surface 
Distributed IRS-Aided DF Relaying Systems:Performance Analysis and Optimization
《China Communications》2024年第6期129-145,共17页Sun Qiang Qian Panpan Chen Xiaomin Ju Jinjuan Wang Jue Zhang Jiayi 
supported in part by National Natural Science Foundation of China under Grant 62371262 and 61971467;in part by the Key Research and Development Program of Jiangsu Province of China under Grant BE2021013-1;in part by the Qinlan Project of Jiangsu Province;in part by the Scientific Research Program of Nantong under Grant JC22022026
Intelligent reflecting surface(IRS)is a newly emerged and promising paradigm to substantially improve the performance of wireless communications by constructing favorable communication channels via properly tuning mas...
关键词：CONFIGURATION energy efficiency ergodic capacity intelligent reflecting surface IRS outage probability 
Intelligent Reflecting Surface Assisted Transmission Optimization Strategies in Wireless Networks
《China Communications》2024年第4期120-135,共16页He Xinxin Qi Xuan Meng Wei Liu Wei Yin Changchuan 
supported by the National Natural Science Foundation of China 62001051.
Wireless Power Transfer(WPT)technology can provide real-time power for many terminal devices in Internet of Things(IoT)through millimeterWave(mmWave)to support applications with large capacity and low latency.Although...
关键词：intelligent reflecting surface(IRS) joint optimization millimeter wave wireless information transmission(WIT) wireless power transfer(WPT) 
Channel Capacity Optimization Based on Riemannian Trust Region Algorithm in IRS-Aided Communication System
《China Communications》2022年第10期21-37,共17页Jinzhi Liu Dan Wang Jiamin Liang Zhiqiang Mei 
supported by the General Program of Natural Science Foudation of Chongqing Province of China(cstc2021jcyj-msxmX0454)
Intelligent Reflecting Surface (IRS) can offer unprecedented channel capacity gains since it can reconfigure the signal propagation environment. We decide to maximize the channel capacity by jointly optimizing the tra...
关键词：intelligent reflecting surface(IRS) MULTI-USER MIMO channel capacity unit modulus constraint Riemannian manifold optimization 
IRS-Aided SWIPT Systems with Power Splitting and Artificial Noise被引量：6
《China Communications》2022年第4期108-120,共13页Baogang Li Fuqiang Si Dongsheng Han Wujing Wu 
supported by the National Natural Science Foundation of China (No. 61971190);the Fundamental Research Funds for the Central Universities (No. 2019 MS089);the Hebei Province Natural Science Foundation (No. F2016502062);the Beijing Natural Science Foundation (No. 4164101)。
Intelligent reflecting surface(IRS) is regarded as a promising technology because it can achieve higher passive beamforming gain. In particular, the IRS assisted simultaneous wireless information and power transfer(SW...
关键词：intelligent reflecting surface(IRS) passive beamforming power splitting SWIPT 
Towards Intelligent Reflecting Surface Empowered 6G Terahertz Communications: A Survey被引量：7
《China Communications》2021年第5期93-119,共27页Zhi Chen Xinying Ma Chong Han Qiye Wen 
supported by the National Key Research and Development Project of China under Grant 2018YFB1801500;supported in part by The National Natural Science Foundation of China under Grant 6162780166 and Grant 61831012.
Terahertz(THz)communications have been widely envisioned as a promising enabler to provide adequate bandwidth and achieve ultra-high data rates for sixth generation(6G)wireless networks.In order to mitigate blockage v...
关键词：terahertz(THz)communications intelligent reflecting surface(IRS) sixth generation(6G) application scenarios enabling technologies emerging challenges. 
Capacity Optimization Using Augmented Lagrange Method in Intelligent Reflecting Surface-Based MIMO Communication Systems
《China Communications》2020年第12期123-138,共16页Daina Chang Hao Jiang Jie Zhou Hongming Zhang Mithun Mukherjee 
This work was supported by the National Natural Science Foundation of China(No.61771248,61971167,62001056);Startup Foundation for Introducing Talent of NUIST,and Open Research Fund of National Mobile Communications Research Laboratory,Southeast University(No.2020D14).
In this paper,we present an algorithm for capacity optimization in intelligent reflecting surface(IRS)-based multiple-input multiple-output(MIMO)communication systems.To maximize the capacity of elements in IRS,we use...
关键词：IRS capacity augmented Lagrange quasi-Newton updates BFGS 
Machine Learning Empowered Beam Management for Intelligent Reflecting Surface Assisted MmWave Networks被引量：9
《China Communications》2020年第10期100-114,共15页Chenglu Jia Hui Gao Na Chen Yuan He 
the National Natural Science Foundation of China under Grant 61790553,61901049,62071071;the Fundamental Research Funds for the Central Universities(2019XD-A13).
Recently,intelligent reflecting surface(IRS)assisted mmWave networks are emerging,which bear the potential to address the blockage issue of the millimeter wave(mmWave)communication in a more cost-effective way.In part...
关键词：mmWave networks IRS beam management machine learning 
Joint Beamforming for Intelligent Reflecting Surface Aided Wireless Communication Using Statistical CSI被引量：8
《China Communications》2020年第8期147-157,共11页Jian Dang Zaichen Zhang Liang Wu 
supported by the National Key R&D Program of China under grant 2018YFB1801101 and 2016YFB0502202;Zhejiang Lab(No.2019LC0AB02),NSFC projects(61971136,61601119,61960206005,and 61803211);Jiangsu NSF project(No.BK20191261);the Fundamental Research Funds for the Central Universities;Young Elite Scientist Sponsorship Program by CAST(YESS20160042);Zhishan Youth Scholar Program of SEU。
A joint beamforming algorithm is proposed for intelligent reflecting surface(IRS) aided wireless multiple-input multiple-output(MIMO) communication using statistical channel state information(CSI). The beamforming is ...
关键词：MIMO beamforming statistical CSI intelligent reflecting surface(IRS) ergodic rate 
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