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相关论文: Deep Reinforcement Learning Based Intelligent Refl…

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Reconfigurable Intelligent Surface (RIS) has becoming a useful tool in future wireless communication systems for close-distance communication network. This paper we use Reconfigurable Intelligent Surface (RIS) for downlink multi-user…

信息论 · 计算机科学 2021-02-02 RuiTianYi Lu

This paper explores the feasibility of leveraging concepts from deep reinforcement learning (DRL) to enable dynamic resource management in Wi-Fi networks implementing distributed multi-user MIMO (D-MIMO). D-MIMO is a technique by which a…

This research gauges the ability of deep reinforcement learning (DRL) techniques to assist the optimization and control of fluid mechanical systems. It combines a novel, "degenerate" version of the proximal policy optimization (PPO)…

最优化与控制 · 数学 2021-05-19 H. Ghraieb , J. Viquerat , A. Larcher , P. Meliga , E. Hachem

In this work, we study the statistically robust beamforming design for an intelligent reflecting surfaces (IRS) assisted multiple-input single-output (MISO) wireless system under imperfect channel state information (CSI), where the channel…

信息论 · 计算机科学 2020-06-15 Jiezhi Zhang , Yu Zhang , Caijun Zhong , Zhaoyang Zhang

This research gauges the ability of deep reinforcement learning (DRL) techniques to assist the control of conjugate heat transfer systems governed by the coupled Navier--Stokes and heat equations. It uses a novel, "degenerate" version of…

流体动力学 · 物理学 2021-03-25 Elie Hachem , Hassan Ghraieb , Jonathan Viquerat , Aurélien Larcher , Philippe Meliga

This paper investigates the system spectral efficiency (SE) in reconfigurable intelligent surface (RIS)-aided multiuser multiple-input single-output (MISO) systems, where RIS can reconfigure the propagation environment via a large number of…

信息论 · 计算机科学 2020-01-31 Yulan Gao , Chao Yong , Zehui Xiong , Dusit Niyato , Yue Xiao , Jun Zhao

In this paper, a novel framework is proposed to optimize the downlink multi-user communication of a millimeter wave base station, which is assisted by a reconfigurable intelligent reflector (IR). In particular, a channel estimation approach…

信息论 · 计算机科学 2021-08-03 Qianqian Zhang , Walid Saad , Mehdi Bennis

Intelligent reflecting surface (IRS) is a rapidly emerging paradigm to enable non-line-of-sight (NLoS) wireless transmission. In this paper, we focus on IRS-aided radar estimation performance of a moving hidden or NLoS target. Unlike prior…

信号处理 · 电气工程与系统科学 2022-12-14 Zahra Esmaeilbeig , Kumar Vijay Mishra , Arian Eamaz , Mojtaba Soltanalian

In this paper, we study the transmission design for reconfigurable intelligent surface (RIS)-aided multiuser communication networks. Different from most of the existing contributions, we consider long-term CSI-based transmission design,…

信息论 · 计算机科学 2021-11-25 Hong Ren , Cunhua Pan , Liang Wang , Zhoubing Kou , Kezhi Wang

Intelligent reflecting surface (IRS) is a promising solution to enhance the wireless communication capacity both cost-effectively and energy-efficiently, by properly altering the signal propagation via tuning a large number of passive…

信息论 · 计算机科学 2019-10-04 Shuowen Zhang , Rui Zhang

Reconfigurable intelligent surfaces (RISs) can potentially combat jamming attacks by diffusing jamming signals. This paper jointly optimizes user selection, channel allocation, modulation-coding, and RIS configuration in a multiuser OFDMA…

信息论 · 计算机科学 2023-01-23 Xin Yuan , Shuyan Hu , Wei Ni , Ren Ping Liu , Xin Wang

Reconfigurable distributed antenna and reflecting surface (RDARS) is a promising architecture for future sixth-generation (6G) wireless networks. In particular, the dynamic working mode configuration for the RDARS-aided system brings an…

信号处理 · 电气工程与系统科学 2025-10-17 Chengwang Ji , Kehui Li , Haiquan Lu , Qiaoyan Peng , Jintao Wang , Feifei Gao , Shaodan Ma

In this paper, intelligent reflecting surface (IRS) is introduced to enhance the network performance of cognitive radio (CR) systems. Specifically, we investigate robust beamforming design based on both bounded channel state information…

信号处理 · 电气工程与系统科学 2024-01-08 Lei Zhang , Cunhua Pan , Yu Wang , Hong Ren , Kezhi Wang

This paper investigates a novel computation and communication co-design framework for large-scale split learning in intelligent reflecting surface (IRS)-assisted internet of things (IoT) networks integrated with digital twin (DT) technique.…

信号处理 · 电气工程与系统科学 2025-10-31 Jiaying Di , Kunlun Wang , Jing Xu , Wen Chen , Dusit Niyato

Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

信息论 · 计算机科学 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang

In this paper, a novel reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) symbiotic radio (SR) system is proposed, in which an RIS, operating as a secondary transmitter (STx), sends messages to a…

信号处理 · 电气工程与系统科学 2021-03-31 Qianqian Zhang , Ying-Chang Liang , H. Vincent Poor

In this paper, a discrete reconfigurable intelligent surface (RIS)-assisted spatial shift keying (SSK) multiple-input multiple-output (MIMO) scheme is investigated, in which a direct link between the transmitter and the receiver is…

信息论 · 计算机科学 2024-11-04 Xusheng Zhu , Qingqing Wu , Wen Chen , Xinyuan He , Lexi Xu , Yaxin Zhang

Cognitive radio (CR) is an effective solution to improve the spectral efficiency (SE) of wireless communications by allowing the secondary users (SUs) to share spectrum with primary users (PUs). Meanwhile, intelligent reflecting surface…

信息论 · 计算机科学 2021-03-12 Weiheng Jiang , Yu Zhang , Jun Zhao , Zehui Xiong , Zhiguo Ding

This paper investigates secure Directional Modulation (DM) design enhanced by a rotatable active Reconfigurable Intelligent Surface (RIS). In conventional RIS-assisted DM networks, the security performance gain is limited due to the…

信号处理 · 电气工程与系统科学 2026-03-24 Yongqiang Li , Feng Shu , Shaofan Chen , Yuanyuan Wu , Maolin Li , Zhen Chen , Hao Jiang , Jiangzhou Wang

Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper…

信息论 · 计算机科学 2018-10-29 Qingqing Wu , Rui Zhang