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Modulation classification, an intermediate process between signal detection and demodulation in a physical layer, is now attracting more interest to the cognitive radio field, wherein the performance is powered by artificial intelligence…

信号处理 · 电气工程与系统科学 2020-09-07 Thien Huynh-The , Van-Sang Doan , Cam-Hao Hua , Quoc-Viet Pham , Dong-Seong Kim

Deep learning-based models have demonstrated remarkable success in solving illposed inverse problems; however, many fail to strictly adhere to the physical constraints imposed by the measurement process. In this work, we introduce a…

机器学习 · 计算机科学 2025-05-22 Jorge Bacca

Large MIMO transceivers are integral components of next-generation wireless networks. However, for such systems to be practical, their channel estimation process needs to be fast and reliable. Although several solutions for fast estimation…

信息论 · 计算机科学 2021-01-20 Yahia Shabara , C. Emre Koksal , Eylem Ekici

Recent works have shown that deep neural networks can achieve super-human performance in a wide range of image classification tasks in the medical imaging domain. However, these works have primarily focused on classification accuracy,…

计算机视觉与模式识别 · 计算机科学 2020-09-10 Gongbo Liang , Yu Zhang , Xiaoqin Wang , Nathan Jacobs

Data-aided channel estimation is a promising solution to improve channel estimation accuracy by exploiting data symbols as pilot signals for updating an initial channel estimate. In this paper, we propose a semi-data-aided channel estimator…

信号处理 · 电气工程与系统科学 2022-04-05 Tae-Kyoung Kim , Yo-Seb Jeon , Jun Li , Nima Tavangaran , H. Vincent Poor

Channel estimation is crucial for modern WiFi system and becomes more and more challenging with the growth of user throughput in multiple input multiple output configuration. Plenty of literature spends great efforts in improving the…

信号处理 · 电气工程与系统科学 2019-03-05 Qi Shi , Yangyu Liu , Shunqing Zhang , Shugong Xu , Shan Cao , Vincent LAU

Massive multiple-input multiple-output (MIMO) systems deploying a large number of antennas at the base station considerably increase the spectrum efficiency by serving multiple users simultaneously without causing severe interference.…

信息论 · 计算机科学 2019-02-19 Yu Han , Qi Liu , Chao-Kai Wen , Shi Jin , Kai-Kit Wong

This paper is concerned with channel estimation in MIMO systems with few-bit ADCs. In these systems, a linear minimum mean-squared error (MMSE) channel estimator obtained in closed-form is not an optimal solution. We first consider a deep…

信号处理 · 电气工程与系统科学 2023-07-19 Duy H. N. Nguyen

In this paper we propose a highly efficient and very accurate deep learning method for estimating the propagation pathloss from a point $x$ (transmitter location) to any point $y$ on a planar domain. For applications such as user-cell site…

信号处理 · 电气工程与系统科学 2020-12-23 Ron Levie , Çağkan Yapar , Gitta Kutyniok , Giuseppe Caire

In this letter, we address the problem of millimeter-Wave channel estimation in massive MIMO communication systems. Leveraging the sparsity of the mmWave channel in the beamspace, we formulate the estimation problem as a sparse signal…

信号处理 · 电气工程与系统科学 2023-03-07 Peicong Zheng , Xuantao Lyu , Yi Gong

We propose a new antenna selection scheme for a massive MIMO system with a single user terminal and a base station with a large number of antennas. We consider a practical scenario where there is a realistic correlation among the antennas…

信息论 · 计算机科学 2015-07-09 De Mi , Mehrdad Dianati , Sami Muhaidat , Yan Chen

Machine-learned predictors, although achieving very good results for inputs resembling training data, cannot possibly provide perfect predictions in all situations. Still, decision-making systems that are based on such predictors need not…

数据结构与算法 · 计算机科学 2023-04-07 Antonios Antoniadis , Christian Coester , Marek Elias , Adam Polak , Bertrand Simon

To glean the benefits offered by massive multi-input multi-output (MIMO) systems, channel state information must be accurately acquired. Despite the high accuracy, the computational complexity of classical linear minimum mean squared error…

信息论 · 计算机科学 2024-04-23 Bin Li , Ziping Wei , Shaoshi Yang , Yang Zhang , Jun Zhang , Chenglin Zhao , Sheng Chen

It is well accepted that acquiring downlink channel state information in frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems is challenging because of the large overhead in training and feedback. In this…

信息论 · 计算机科学 2022-05-18 Javad Mirzaei , Shahram ShahbazPanahi , Raviraj Adve , Navaneetha Gopal

Channel charting builds a map of the radio environment in an unsupervised way. The obtained chart locations can be seen as low-dimensional compressed versions of channel state information that can be used for a wide variety of applications,…

Purpose: Electromagnetic Tracking (EMT) can potentially complement fluoroscopic navigation, reducing radiation exposure in a hybrid setting. Due to the susceptibility to external distortions, systematic error in EMT needs to be compensated…

图像与视频处理 · 电气工程与系统科学 2020-05-25 Henry Krumb , Sofie Hofmann , David Kügler , Ahmed Ghazy , Bernhard Dorweiler , Robert Schmitt , Georgios Sakas , Anirban Mukhopadhyay

In this paper, we investigate the model-driven deep learning (DL) for MIMO detection. In particular, the MIMO detector is specially designed by unfolding an iterative algorithm and adding some trainable parameters. Since the number of…

信息论 · 计算机科学 2021-03-24 Hengtao He , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Underwater monocular depth estimation serves as the foundation for tasks such as 3D reconstruction of underwater scenes. However, due to the influence of light and medium, the underwater environment undergoes a distinctive imaging process,…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Jian Wang , Jing Wang , Shenghui Rong , Bo He

Learned denoisers play a fundamental role in various signal generation (e.g., diffusion models) and reconstruction (e.g., compressed sensing) architectures, whose success derives from their ability to leverage low-dimensional structure in…

机器学习 · 计算机科学 2025-08-14 Shiyu Wang , Mariam Avagyan , Yihan Shen , Arnaud Lamy , Tingran Wang , Szabolcs Márka , Zsuzsa Márka , John Wright

Massive multi-input multi-output (MIMO) combined with orthogonal time frequency space (OTFS) modulation has emerged as a promising technique for high-mobility scenarios. However, its performance could be severely degraded due to channel…

信号处理 · 电气工程与系统科学 2025-07-03 Yanfeng Zhang , Xu Zhu , Yujie Liu , Yong Liang Guan , David González G. , Vincent K. N. Lau
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