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Motivated by the issue of inaccurate channel state information (CSI) at the base station (BS), which is commonly due to feedback/processing delays and compression problems, in this paper, we introduce a scalable idea of adopting artificial…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Muhammad Karam Shehzad , Luca Rose , Mohamad Assaad

This article comprehensively reviews recent developments and research on deep learning-based (DL-based) techniques for integrated sensing and communication (ISAC) systems. ISAC, which combines sensing and communication functionalities, is…

Signal Processing · Electrical Eng. & Systems 2025-09-10 Murat Temiz , Yongwei Zhang , Yanwei Fu , Chi Zhang , Chenfeng Meng , Orhan Kaplan , Christos Masouros

Reconfigurable intelligent surfaces (RISs) are envisioned as a potentially transformative technology for future wireless communications. However, RISs' inability to process signals and the attendant increased channel dimension have brought…

Signal Processing · Electrical Eng. & Systems 2023-02-14 Jieao Zhu , Kunzan Liu , Zhongzhichao Wan , Linglong Dai , Tie Jun Cui , H. Vincent Poor

In frequency division duplex (FDD) systems, acquiring channel state information (CSI) at the base station (BS) traditionally relies on limited feedback from mobile terminals (MTs). However, the accuracy of channel reconstruction from…

Information Theory · Computer Science 2025-03-10 Yunseo Nam , Jiwook Choi

Intelligent communication is gradually considered as the mainstream direction in future wireless communications. As a major branch of machine learning, deep learning (DL) has been applied in physical layer communications and has…

Information Theory · Computer Science 2019-02-26 Hengtao He , Shi Jin , Chao-Kai Wen , Feifei Gao , Geoffrey Ye Li , Zongben Xu

In this paper, a green learning (GL)-based precoding framework is proposed for simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-aided millimeter-wave (mmWave) MIMO broadcasting systems. Motivated by…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Yu-Hsiang Huang , Po-Heng Chou , Wan-Jen Huang , Walid Saad , C. -C. Jay Kuo

Channel state information (CSI) reporting is important for multiple-input multiple-output (MIMO) transmitters to achieve high capacity and energy efficiency in frequency division duplex (FDD) mode. CSI reporting for massive MIMO systems…

Information Theory · Computer Science 2019-12-24 Zhenyu Liu , Lin Zhang , Zhi Ding

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 new demands for high-reliability and ultra-high capacity wireless communication have led to extensive research into 5G communications. However, the current communication systems, which were designed on the basis of conventional…

Signal Processing · Electrical Eng. & Systems 2019-04-23 Hongji Huang , Song Guo , Guan Gui , Zhen Yang , Jianhua Zhang , Hikmet Sari , Fumiyuki Adachi

Orthogonal time frequency space (OTFS) modulation stands out as a promising waveform for sixth generation (6G) and beyond wireless communication systems, offering superior performance over conventional methods, particularly in high-mobility…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Emin Akpinar , Emir Aslandogan , Burak Ahmet Ozden , Haci Ilhan , Erdogan Aydin

Artificial intelligence (AI) is pivotal in advancing fifth-generation (5G)-Advanced and sixth-generation systems, capturing substantial research interest. Both the 3rd Generation Partnership Project (3GPP) and leading corporations champion…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Chengyong Jiang , Jiajia Guo , Xiangyi Li , Shi Jin , Jun Zhang

Accurate channel state information (CSI) feedback plays a vital role in improving the performance gain of massive multiple-input multiple-output (m-MIMO) systems, where the dilemma is excessive CSI overhead versus limited feedback bandwith.…

Signal Processing · Electrical Eng. & Systems 2020-08-18 Yuyao Sun , Wei Xu , Lisheng Fan , Geoffrey Ye Li , George K. Karagiannidis

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

Massive multiple-input multiple-output (MIMO) systems use antenna arrays with a large number of antenna elements to serve many different users simultaneously. The large number of antennas in the system makes, however, the channel state…

Information Theory · Computer Science 2020-02-21 Alexis Decurninge , Luis G. Ordóñez , Maxime Guillaud

Deep Learning (DL)-based channel state information (CSI) feedback is a promising technique for the transmitter to accurately acquire the CSI of massive multiple-input multiple-output (MIMO) systems. As critical concerns about DL-based…

Signal Processing · Electrical Eng. & Systems 2023-05-04 Haozhen Li , Xinyu Gu , Boyuan Zhang , Dongliang Li , Zhenyu Liu , Lin Zhang

In the realm of reconfigurable intelligent surface (RIS)-assisted wireless communications, efficient channel state information (CSI) feedback is paramount. This paper introduces RIS-CoCsiNet, a novel deep learning-based framework designed…

Information Theory · Computer Science 2024-10-30 Jiajia Guo , Xi Yang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

In this paper, we present a deep learning (DL) algorithm for channel estimation in communication systems. We consider the time-frequency response of a fast fading communication channel as a two-dimensional image. The aim is to find the…

Information Theory · Computer Science 2019-02-20 Mehran Soltani , Vahid Pourahmadi , Ali Mirzaei , Hamid Sheikhzadeh

Future cellular networks are intended to have the ability to sense the environment by utilizing reflections of transmitted signals. Multi-dimensional sensing brings along the crucial advantage of being able to resort to multiple domains to…

Signal Processing · Electrical Eng. & Systems 2022-05-23 Marcus Henninger , Silvio Mandelli , Maximilian Arnold , Stephan ten Brink

We study a deep learning (DL) based limited feedback methods for multi-antenna systems. Deep neural networks (DNNs) are introduced to replace an end-to-end limited feedback procedure including pilot-aided channel training process, channel…

Information Theory · Computer Science 2019-12-20 Jeonghyeon Jang , Hoon Lee , Sangwon Hwang , Haibao Ren , Inkyu Lee

Deep learning (DL)-based channel state information (CSI) feedback has shown great potential in improving spectrum efficiency in massive MIMO systems. However, DL models optimized for specific environments often experience performance…

Information Theory · Computer Science 2024-10-11 Zhenyu Liu , Yi Ma , Rahim Tafazolli
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