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Massive MIMO basestations, operating with frequency-division duplexing (FDD), require the users to feedback their channel state information (CSI) in order to design the precoding matrices. Given the powerful capabilities of deep neural…

Information Theory · Computer Science 2024-01-17 Yu Zhang , Ahmed Alkhateeb

Modern video person re-identification (re-ID) machines are often trained using a metric learning approach, supervised by a triplet loss. The triplet loss used in video re-ID is usually based on so-called clip features, each aggregated from…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Pengfei Fang , Pan Ji , Lars Petersson , Mehrtash Harandi

Pansharpening aims to enhance remote sensing image (RSI) quality by merging high-resolution panchromatic (PAN) with multispectral (MS) images. However, prior techniques struggled to optimally fuse PAN and MS images for enhanced spatial and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wen-Jie Shu , Hong-Xia Dou , Rui Wen , Xiao Wu , Liang-Jian Deng

Regularization is essential for avoiding over-fitting to training data in network optimization, leading to better generalization of the trained networks. The label noise provides a strong implicit regularization by replacing the target…

Machine Learning · Computer Science 2022-05-04 Kensuke Nakamura , Bong-Soo Sohn , Kyoung-Jae Won , Byung-Woo Hong

This paper proposes a deep learning framework to design distributed compression strategies in which distributed agents need to compress high-dimensional observations of a source, then send the compressed bits via bandwidth limited links to…

Information Theory · Computer Science 2022-03-10 Foad Sohrabi , Tao Jiang , Wei Yu

Compressed sensing (CS) is a promising tool for reducing sampling costs. Current deep neural network (NN)-based CS methods face the challenges of collecting labeled measurement-ground truth (GT) data and generalizing to real applications.…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Bin Chen , Xuanyu Zhang , Shuai Liu , Yongbing Zhang , Jian Zhang

This paper investigates the reconfigurable reflecting surface (RIS)-aided multiple-input-single-output (MISO) systems with imperfect channel state information (CSI), where RIS-related channels are modeled by Rician fading. Considering the…

Information Theory · Computer Science 2021-07-13 Kangda Zhi , Cunhua Pan , Hong Ren , Kezhi Wang , Maged Elkashlan

This paper presents a study on the reduction of the sampling frequency of the current signals of an induction motor, the reductions are performed by means time-decimation technique for digital signal processing. We have used the Fast…

Signal Processing · Electrical Eng. & Systems 2018-07-31 J. S. Moreira , P. C. M. Lamim Filho , L. M. R. Baccarini , E. G. Nepomuceno , P. F. S. Guedes

Underwater acoustic recognition for ship-radiated signals has high practical application value due to the ability to recognize non-line-of-sight targets. However, due to the difficulty of data acquisition, the collected signals are scarce…

Machine Learning · Computer Science 2023-04-25 Yuan Xie , Tianyu Chen , Ji Xu

This paper investigates the Diversity-Multiplexing gain Trade-off (DMT) of a training based reciprocal Single Input Multiple Output (SIMO) system, with (i) perfect Channel State Information (CSI) at the Receiver (CSIR) and noisy CSI at the…

Information Theory · Computer Science 2012-11-05 B. N. Bharath , Chandra R. Murthy

Integrated sensing and communication (ISAC), assisted by reconfigurable intelligent surface (RIS) has emerged as a breakthrough technology to improve the capacity and reliability of 6G wireless network. However, a significant challenge in…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Chen Zhen , Li Jianqing , Zhang Haijun , Zhang Wei

Despite the development of various deep learning methods for Wi-Fi sensing, package loss often results in noncontinuous estimation of the Channel State Information (CSI), which negatively impacts the performance of the learning models. To…

Machine Learning · Computer Science 2024-12-10 Zijian Zhao , Tingwei Chen , Fanyi Meng , Hang Li , Xiaoyang Li , Guangxu Zhu

Communications in dispersive direct-sequence code-division multiple-access (DS-CDMA) channels suffer from intersymbol and multiple-access interference, which can significantly impair performance. Joint maximum \textit{a posteriori}…

Information Theory · Computer Science 2007-07-13 Husheng Li , H. V. Poor

Quantization can improve the execution latency and energy efficiency of neural networks on both commodity GPUs and specialized accelerators. The majority of existing literature focuses on training quantized DNNs, while this work examines…

Machine Learning · Computer Science 2019-05-24 Ritchie Zhao , Yuwei Hu , Jordan Dotzel , Christopher De Sa , Zhiru Zhang

To achieve the full passive beamforming gains of intelligent reflecting surface (IRS), accurate channel state information (CSI) is indispensable but practically challenging to acquire, due to the excessive amount of channel parameters to be…

Information Theory · Computer Science 2020-09-15 Beixiong Zheng , Changsheng You , Rui Zhang

Despite the transmission efficiency gains of semantic communication (SemCom) over traditional methods, most existing SemCom schemes still operate at a fixed transmission rate regardless of channel conditions and transmitted content,…

Image and Video Processing · Electrical Eng. & Systems 2026-03-11 Weixuan Chen , Qianqian Yang , Yuhao Chen , Chongwen Huang , Qian Wang , Zehui Xiong , Zhaoyang Zhang

Deep learning (DL)-based channel state information (CSI) feedback improves the capacity and energy efficiency of massive multiple-input multiple-output (MIMO) systems in frequency division duplexing mode. However, multiple neural networks…

Information Theory · Computer Science 2022-03-01 Xin Liang , Haoran Chang , Haozhen Li , Xinyu Gu , Lin Zhang

Radio Frequency Fingerprinting (RFF) using deep learning has gained attention as a complementary approach to cryptographic authentication, offering resistance to spoofing, replay attacks, and key leakage. While most RFF approaches rely on…

Signal Processing · Electrical Eng. & Systems 2026-05-18 Fawaz Abdul Razak , Yasin Yilmaz

Channel state information at the transmitter (CSIT) is essential for frequency-division duplexing (FDD) massive MIMO systems, but conventional solutions involve overwhelming overhead both for downlink channel training and uplink channel…

Information Theory · Computer Science 2016-11-15 Wenqian Shen , Linglong Dai , Byonghyo Shim , Shahid Mumtaz , Zhaocheng Wang

This paper proposes a spatially common sparsity based adaptive channel estimation and feedback scheme for frequency division duplex based massive multi-input multi-output (MIMO) systems, which adapts training overhead and pilot design to…

Information Theory · Computer Science 2023-10-20 Zhen Gao , Linglong Dai , Zhaocheng Wang , Sheng Chen