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Intelligent reflecting surface (IRS) has emerged as a promising technique to enhance wireless communication performance cost effectively. The existing literature has mainly considered IRS being deployed near user terminals to improve their…

信息论 · 计算机科学 2022-05-27 Yuwei Huang , Weidong Mei , Rui Zhang

Current privacy-aware joint source-channel coding (JSCC) works aim at avoiding private information transmission by adversarially training the JSCC encoder and decoder under specific signal-to-noise ratios (SNRs) of eavesdroppers. However,…

密码学与安全 · 计算机科学 2023-09-18 Lunan Sun , Caili Guo , Mingzhe Chen , Yang Yang

To boost the secrecy rate (SR) of the conventional directional modulation (DM) network and overcome the double fading effect of the cascaded channels of passive intelligent reflecting surface (IRS), a novel active IRS-assisted DM system…

信息论 · 计算机科学 2024-02-27 Rongen Dong , Feng Shu , Yongzhao Li , Jun Li , Yongpeng Wu , Jiangzhou Wang

In this paper, we consider an intelligent reflecting surface (IRS)-aided single-user system where an IRS with discrete phase shifts is deployed to assist the uplink communication. A practical transmission protocol is proposed to execute…

信息论 · 计算机科学 2019-12-24 Changsheng You , Beixiong Zheng , Rui Zhang

Reconfigurable Intelligent Surfaces (RISs) offer a promising means of reshaping the wireless propagation environment, yet practical methods for configuring large passive arrays to achieve reliable signal equalization remain limited.…

信息论 · 计算机科学 2026-03-04 Gal Ben-Itzhak , Ender Ayanoglu

Intelligent reflecting surface (IRS) has recently received significant attention in wireless networks owing to its ability to smartly control the wireless propagation through passive reflection. Although prior works have employed the IRS to…

信息论 · 计算机科学 2023-05-01 Guangji Chen , Qingqing Wu

Intelligent reflecting surface (IRS) is a promising technology for the 6th generation of wireless systems, realizing the smart radio environment concept. In this paper, we present a novel tensor-based receiver for IRS-assisted…

Semantic communication (SemCom) aims to convey the intended meaning of messages rather than merely transmitting bits, thereby offering greater efficiency and robustness, particularly in resource-constrained or noisy environments. In this…

信息论 · 计算机科学 2025-07-08 Chengyang Liang , Dong Li

Recent works have shown that the task of wireless transmission of images can be learned with the use of machine learning techniques. Very promising results in end-to-end image quality, superior to popular digital schemes that utilize source…

图像与视频处理 · 电气工程与系统科学 2021-11-29 Tze-Yang Tung , David Burth Kurka , Mikolaj Jankowski , Deniz Gündüz

Small satellites used for Earth observation generate vast amounts of high-dimensional data, but their operation in low Earth orbit creates a significant communication bottleneck due to limited contact times and harsh, varying channel…

网络与互联网体系结构 · 计算机科学 2025-08-04 Olga Kondrateva , Grace Li Zhang , Julian Zobel , Björn Scheuermann , Stefan Dietzel

In cognitive radio (CR) communication systems, achieving high secondary user (SU) rate in the presence of strong cross-link interference with the primary user (PU) is challenging. In this letter, we exploit the emerging intelligent…

信息论 · 计算机科学 2020-03-10 Xinrong Guan , Qingqing Wu , Rui Zhang

Despite significant advancements in deep learning based CSI compression, some key limitations remain unaddressed. Current approaches predominantly treat CSI compression as a source-coding problem, thereby neglecting transmission errors.…

信息论 · 计算机科学 2026-02-19 Sravan Kumar Ankireddy , Heasung Kim , Joonyoung Cho , Hyeji Kim

Intelligent Reflecting Surfaces (IRSs) have potential for significant performance gains in next-generation wireless networks but face key challenges, notably severe double-pathloss and complex multi-user scheduling due to hardware…

信息论 · 计算机科学 2025-08-12 Xintong Chen , Zhenyu Jiang , Jiangbin Lyu , Liqun Fu

This paper studies the feasibility of deploying intelligent reflecting surfaces (IRSs) in massive MIMO (multiple-input multiple-output) systems to improve the performance of users in the service dead zone. To reduce the channel training…

信息论 · 计算机科学 2022-01-13 Zhaorui Wang , Liang Liu , Shuowen Zhang , Shuguang Cui

In this paper, we propose a deep reinforcement learning (DRL) approach for solving the optimisation problem of the network's sum-rate in device-to-device (D2D) communications supported by an intelligent reflecting surface (IRS). The IRS is…

信号处理 · 电气工程与系统科学 2021-08-09 Khoi Khac Nguyen , Antonino Masaracchia , Cheng Yin , Long D. Nguyen , Octavia A. Dobre , Trung Q. Duong

Intelligent reflecting surface (IRS)-assisted mobile edge computing (MEC) systems have shown notable improvements in efficiency, such as reduced latency, higher data rates, and better energy efficiency. However, the resource competition…

信号处理 · 电气工程与系统科学 2026-04-28 Yinyu Wu , Xuhui Zhang , Yingchao Jiao , Jinke Ren , Yanyan Shen , Bo Yang , Shuqiang Wang , Dusit Niyato

We consider low-latency image transmission over a noisy wireless channel when correlated side information is present only at the receiver side (the Wyner-Ziv scenario). In particular, we are interested in developing practical schemes using…

计算机视觉与模式识别 · 计算机科学 2024-02-28 Selim F. Yilmaz , Ezgi Ozyilkan , Deniz Gunduz , Elza Erkip

Resource allocation in integrated sensing and communication (ISAC) systems needs to be optimized to balance the requirements of the communication and sensing modules considering complicated cross-layer data traffic and queue status in…

信号处理 · 电气工程与系统科学 2026-04-28 Xiyu Wang , Gilberto Berardinelli , Hei Victor Cheng , Petar Popovski , Ramoni Adeogun

Integrating large intelligent reflecting surfaces (IRS) into millimeter-wave (mmWave) massive multi-input-multi-ouput (MIMO) has been a promising approach for improved coverage and throughput. Most existing work assumes the ideal channel…

信息论 · 计算机科学 2020-09-01 Shicong Liu , Zhen Gao , Jun Zhang , Marco Di Renzo , Mohamed-Slim Alouini

Intelligent reflective surfaces (IRSs) are invoked for improving both spectral efficiency (SE) and energy efficiency (EE). Specifically, an IRS-aided multiple-input multiple-output network is considered, where the performance of randomly…

信息论 · 计算机科学 2021-02-25 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen , Lajos Hanzo