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Deep learning (DL) techniques have demonstrated strong performance in compressing and reconstructing channel state information (CSI) while reducing feedback overhead in massive MIMO systems. A key challenge, however, is their reliance on…

Signal Processing · Electrical Eng. & Systems 2025-10-01 Hao Luo , Shuaifeng Jiang , Saeed R. Khosravirad , Ahmed Alkhateeb

Deep learning (DL) approaches have demonstrated high performance in compressing and reconstructing the channel state information (CSI) and reducing the CSI feedback overhead in massive MIMO systems. One key challenge, however, with the DL…

Information Theory · Computer Science 2024-03-04 Shuaifeng Jiang , Ahmed Alkhateeb

Accurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output systems. Recently, deep learning (DL) has been introduced for CSI feedback enhancement through massive…

Signal Processing · Electrical Eng. & Systems 2023-10-26 Han Xiao , Wenqiang Tian , Wendong Liu , Jiajia Guo , Zhi Zhang , Shi Jin , Zhihua Shi , Li Guo , Jia Shen

Digital twins (DTs), which are virtual environments that simulate, predict, and optimize the performance of their physical counterparts, hold great promise in revolutionizing next-generation wireless networks. While DTs have been…

Optimizing modern wireless networks is exceptionally challenging due to their high dynamism and complexity. While the agentic artificial intelligence (AI) powered by reinforcement learning (RL) offers a promising solution, its practical…

Systems and Control · Electrical Eng. & Systems 2025-11-26 Zhenyu Tao , Wei Xu , Xiaohu You

Realizing the potential gains of large-scale MIMO systems requires the accurate estimation of their channels or the fine adjustment of their narrow beams. This, however, is typically associated with high channel acquisition/beam sweeping…

Signal Processing · Electrical Eng. & Systems 2023-01-19 Shuaifeng Jiang , Ahmed Alkhateeb

Accurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output (MIMO) systems. Recently, deep learning (DL) has been introduced to enhance CSI feedback in massive MIMO…

Signal Processing · Electrical Eng. & Systems 2023-02-01 Han Xiao , Wenqiang Tian , Wendong Liu , Zhi Zhang , Zhihua Shi , Li Guo , Jia Shen

Wireless digital twins can be leveraged to provide site-specific synthetic channel information through precise physical modeling and signal propagation simulations. This can help reduce the overhead of channel state information (CSI)…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Hao Luo , Saeed R. Khosravirad , Ahmed Alkhateeb

Internet of Things (IoT) devices are available in a multitude of scenarios, and provide constant, contextual data which can be leveraged to automatically reconfigure and optimize smart environments. To realize this vision, Artificial…

Networking and Internet Architecture · Computer Science 2023-01-31 Luca Bedogni , Federico Chiariotti

The identification of Line-of-Sight (LoS) conditions is critical for ensuring reliable high-frequency communication links, which are particularly vulnerable to blockages and rapid channel variations. Network Digital Twins (NDTs) and…

Signal Processing · Electrical Eng. & Systems 2025-05-22 Michele Zhu , Silvia Mura , Francesco Linsalata , Lorenzo Cazzella , Damiano Badini , Umberto Spagnolini

Digital twin (DT) enables smart manufacturing by leveraging real-time data, AI models, and intelligent control systems. This paper presents a state-of-the-art analysis on the emerging field of DTs in the context of milling. The critical…

Systems and Control · Electrical Eng. & Systems 2025-12-16 Wenyi Liu , R. Sharma , W. "Grace" Guo , J. Yi , Y. B. Guo

The use of deep learning (DL) for channel state information (CSI) feedback has garnered widespread attention across academia and industry. The mainstream DL architectures, e.g., CsiNet, deploy DL models on the base station (BS) side and the…

Signal Processing · Electrical Eng. & Systems 2024-05-10 Yiran Guo , Wei Chen , Feifei Sun , Jiaming Cheng , Michail Matthaiou , Bo Ai

Deep learning-based (DL-based) channel state information (CSI) feedback for a Massive multiple-input multiple-output (MIMO) system has proved to be a creative and efficient application. However, the existing systems ignored the wireless…

Signal Processing · Electrical Eng. & Systems 2021-10-13 Haozhen Li , Boyuan Zhang , Xin Liang , Haoran Chang , Xinyu Gu , Lin Zhang

Reinforcement Learning (RL) or Deep Reinforcement Learning (DRL) is a powerful approach to solving Markov Decision Processes (MDPs) when the model of the environment is not known a priori. However, RL models are still faced with challenges…

Systems and Control · Electrical Eng. & Systems 2024-06-04 Kabirat Olayemi , Mien Van , Luke Maguire , Sean McLoone

Effective channel estimation in sparse and high-dimensional environments is essential for next-generation wireless systems, particularly in large-scale MIMO deployments. This paper introduces a novel framework that leverages digital twins…

Signal Processing · Electrical Eng. & Systems 2025-04-10 Sadjad Alikhani , Ahmed Alkhateeb

Deep learning (DL), a branch of artificial intelligence (AI) techniques, has shown great promise in various disciplines such as image classification and segmentation, speech recognition, language translation, among others. This remarkable…

Signal Processing · Electrical Eng. & Systems 2022-09-07 Wonjun Kim , Yongjun Ahn , Jinhong Kim , Byonghyo Shim

Digital Twins (DTs) are gaining prominence in cybersecurity for their ability to replicate complex IT (Information Technology), OT (Operational Technology), and IoT (Internet of Things) infrastructures, allowing for real time monitoring,…

Cryptography and Security · Computer Science 2025-07-24 Vita Santa Barletta , Vito Bavaro , Miriana Calvano , Antonio Curci , Antonio Piccinno , Davide Pio Posa

Training effective artificial intelligence models for telecommunications is challenging due to the scarcity of deployment-specific data. Real data collection is expensive, and available datasets often fail to capture the unique operational…

Signal Processing · Electrical Eng. & Systems 2026-05-28 Clement Ruah , Houssem Sifaou , Osvaldo Simeone , Bashir M. Al-Hashimi

Fully harvesting the gain of multiple-input and multiple-output (MIMO) requires accurate channel information. However, conventional channel acquisition methods mainly rely on pilot training signals, resulting in significant training…

Information Theory · Computer Science 2024-09-26 Shuaifeng Jiang , Qi Qu , Xiaqing Pan , Abhishek Agrawal , Richard Newcombe , Ahmed Alkhateeb

Many performance gains achieved by massive multiple-input and multiple-output depend on the accuracy of the downlink channel state information (CSI) at the transmitter (base station), which is usually obtained by estimating at the receiver…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Jiajia Guo , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li
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