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Related papers: AI-Driven Subcarrier-Level CQI Feedback

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This paper addresses the optimal design of limited-feedback downlink multi-user spatial multiplexing systems. A multiple-antenna base-station is assumed to serve multiple single-antenna users, who quantize and feed back their channel state…

Information Theory · Computer Science 2011-12-30 Behrouz Khoshnevis , Wei Yu

The 3rd Generation Partnership Project started the study of Release 18 in 2021. Artificial intelligence (AI)-native air interface is one of the key features of Release 18, where AI for channel state information (CSI) feedback enhancement is…

Information Theory · Computer Science 2024-10-28 Jiajia Guo , Chao-Kai Wen , Shi Jin , Xiao Li

Using artificial intelligent (AI) to re-design and enhance the current wireless communication system is a promising pathway for the future sixth-generation (6G) wireless network. The performance of AI-enabled wireless communication depends…

Signal Processing · Electrical Eng. & Systems 2022-12-14 Hanning Tang , Liusha Yang , Rui Zhou , Jing Liang , Hong Wei , Xuan Wang , Qingjiang Shi , Zhi-Quan Luo

In this work, we consider the joint precoding across K transmitters (TXs), sharing the knowledge of the user's data symbols to be transmitted towards K single-antenna receivers (RXs). We consider a distributed channel state information…

Information Theory · Computer Science 2011-11-01 Paul de Kerret , David Gesbert

Channel extrapolation has attracted wide attention due to its potential to acquire channel state information (CSI) with high accuracy and minimal overhead. This is becoming increasingly crucial as the sixth-generation (6G) mobile networks…

Signal Processing · Electrical Eng. & Systems 2026-02-02 Yuan Gao , Zichen Lu , Yifan Wu , Yanliang Jin , Shunqing Zhang , Xiaoli Chu , Shugong Xu , Cheng-Xiang Wang

Extremely large-scale multiple-input multiple-output (XL-MIMO) systems, operating in the near-field region due to their massive antenna arrays, are key enablers of next-generation wireless communications but face significant challenges in…

Signal Processing · Electrical Eng. & Systems 2025-12-02 Tianqi Mao , Haiyang Li , Shufeng Tan , Pengyu Wang , Guangyao Liu , Ruiqi Liu , Leyi Zhang , Meng Hua , Dezhi Zheng , Zhaocheng Wang , Sheng Chen

To reduce multiuser interference and maximize the spectrum efficiency in orthogonal frequency division duplexing massive multiple-input multiple-output (MIMO) systems, the downlink channel state information (CSI) estimated at the user…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Wei Chen , Weixiao Wan , Shiyue Wang , Peng Sun , Geoffrey Ye Li , Bo Ai

Next-generation wireless systems aim at fulfilling diverse application requirements but fundamentally rely on point-to-point transmission qualities. Aligning with recent AI-enabled wireless implementations, this paper introduces autonomic…

Networking and Internet Architecture · Computer Science 2022-06-08 Shih-Chun Lin , Chia-Hung Lin , K V S Rohit , Liang C Chu

Resource allocation has a direct and profound impact on the performance of vehicle-to-everything (V2X) networks. In this paper, we develop a hybrid architecture consisting of centralized decision making and distributed resource sharing (the…

Signal Processing · Electrical Eng. & Systems 2019-08-14 Liang Wang , Hao Ye , Le Liang , Geoffrey Ye Li

Conventional channel estimation (CE) for Internet of Things (IoT) systems encounters challenges such as low spectral efficiency, high energy consumption, and blocked propagation paths. Although superimposed pilot-based CE schemes and the…

Signal Processing · Electrical Eng. & Systems 2022-12-08 Chaojin Qing , Li Wang , Lei Dong , Guowei Ling , Jiafan Wang

Multi-antenna precoding effectively mitigates the interference in wireless networks. However, the resultant performance gains can be significantly compromised in practice if the precoder design fails to account for the inaccuracy in the…

Information Theory · Computer Science 2012-02-28 Kaibin Huang , Rui Zhang

In this paper, we present a novel neural architecture for channel estimation (CE) in 5G and beyond, the Recurrent Equivariant UERS Estimation Network (ReQuestNet). It incorporates several practical considerations in wireless communication…

Signal Processing · Electrical Eng. & Systems 2025-08-13 Kumar Pratik , Pouriya Sadeghi , Gabriele Cesa , Sanaz Barghi , Joseph B. Soriaga , Yuanning Yu , Supratik Bhattacharjee , Arash Behboodi

The advent of deep learning (DL)-based models has significantly advanced Channel State Information (CSI) feedback mechanisms in wireless communication systems. However, traditional approaches often suffer from high communication overhead…

Artificial Intelligence · Computer Science 2023-12-12 Zhilin Du , Haozhen Li , Zhenyu Liu , Shilong Fan , Xinyu Gu , Lin Zhang

Radio frequency fingerprint identification (RFFI) exploits device-specific hardware impairments for transmitter recognition, but its performance is highly vulnerable to receiver variations and changing wireless channels in cross-receiver…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Jiashuo He , Yumeng Wang , Feiyang He , Sai Huang , Yiheng Liu , Shuo Chang , Zhiyong Feng

Identity authentication is crucial for ensuring the information security of wireless communication. Radio frequency (RF) fingerprinting techniques provide a prom-ising supplement to cryptography-based authentication approaches but rely on…

Cryptography and Security · Computer Science 2024-08-14 Junjie Wang , Yong Huang , Feiyang Zhao , Wenjing Wang , Dalong Zhang , Wei Wang

Massive multiple-input multiple-output (MIMO) systems rely on channel state information (CSI) feedback to perform precoding and achieve performance gain in frequency division duplex (FDD) networks. However, the huge number of antennas poses…

Information Theory · Computer Science 2018-08-01 Tianqi Wang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Acquiring and utilizing accurate channel state information (CSI) can significantly improve transmission performance, thereby holding a crucial role in realizing the potential advantages of massive multiple-input multiple-output (MIMO)…

Information Theory · Computer Science 2024-03-21 Haotian Wu , Maojun Zhang , Yulin Shao , Krystian Mikolajczyk , Deniz Gündüz

Deep learning has significantly propelled the performance of ECG arrhythmia classification, yet its clinical adoption remains hindered by challenges in interpretability and deployment on resource-constrained edge devices. To bridge this…

Machine Learning · Computer Science 2025-07-24 Tushar Talukder Showrav , Soyabul Islam Lincoln , Md. Kamrul Hasan

As a key technology to meet the ever-increasing data rate demand in beyond 5G and 6G communications, millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems have gained much attention recently.To make the most of…

Information Theory · Computer Science 2024-10-10 Hyungyu Ju , Seokhyun Jeong , Seungnyun Kim , Byungju Lee , Byonghyo Shim

The reconfigurable intelligent surface (RIS) is a promising technology that enables wireless communication systems to achieve improved performance by intelligently manipulating wireless channels. In this paper, we consider the sum-rate…

Signal Processing · Electrical Eng. & Systems 2023-08-21 Bile Peng , Karl-Ludwig Besser , Ramprasad Raghunath , Vahid Jamali , Eduard A. Jorswieck