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The promising coverage and spectral efficiency gains of intelligent reflecting surfaces (IRSs) are attracting increasing interest. In order to realize these surfaces in practice, however, several challenges need to be addressed. One of…

信息论 · 计算机科学 2020-02-26 Abdelrahman Taha , Yu Zhang , Faris B. Mismar , Ahmed Alkhateeb

Speech enhancement has benefited from the success of deep learning in terms of intelligibility and perceptual quality. Conventional time-frequency (TF) domain methods focus on predicting TF-masks or speech spectrum, via a naive convolution…

音频与语音处理 · 电气工程与系统科学 2020-09-24 Yanxin Hu , Yun Liu , Shubo Lv , Mengtao Xing , Shimin Zhang , Yihui Fu , Jian Wu , Bihong Zhang , Lei Xie

Multiple wireless sensing tasks, e.g., radar detection for driver safety, involve estimating the "channel" or relationship between signal transmitted and received. In this work, we focus on a certain channel model known as the delay-doppler…

信息论 · 计算机科学 2020-11-24 Alisha Zachariah

Deep convolutional neural networks (CNNs) have made impressive progress in many video recognition tasks such as video pose estimation and video object detection. However, CNN inference on video is computationally expensive due to processing…

计算机视觉与模式识别 · 计算机科学 2018-02-28 Bowen Pan , Wuwei Lin , Xiaolin Fang , Chaoqin Huang , Bolei Zhou , Cewu Lu

Next-generation wireless technologies such as 6G aim to meet demanding requirements such as ultra-high data rates, low latency, and enhanced connectivity. Extremely Large-Scale MIMO (XL-MIMO) and Reconfigurable Intelligent Surface (RIS) are…

信息论 · 计算机科学 2026-01-01 Muhammad Kamran Saeed , Ashfaq Khokhar , Shakil Ahmed

Cross-modal learning has become a fundamental paradigm for integrating heterogeneous information sources such as images, text, and structured attributes. However, multimodal representations often suffer from modality dominance, redundant…

Intelligent Reflecting Surfaces (IRSs) are a promising technology for enhancing the spectral and energy efficiency of millimeter-wave (mmWave) multiple-input multiple-output (MIMO) systems. In these systems, accurate channel estimation…

信号处理 · 电气工程与系统科学 2026-05-15 Mehrdad Momen-Tayefeh , Mehrshad Momen-Tayefeh , Maryam Sabbaghian

Adaptive network coding schemes provide a promising approach to bridging the gap between high data rates and low delay in real-time streaming applications. However, their effectiveness often relies on accurate channel prediction, which is…

信息论 · 计算机科学 2026-03-24 Adina Waxman , Nir Shlezinger , Alejandro Cohen

Reconfigurable intelligent surfaces (RISs) are eminently suitable for improving the reliability of wireless communications by jointly designing the active beamforming at the base station (BS) and the passive beamforming at the RIS.…

信息论 · 计算机科学 2025-01-23 Qingchao Li , Mohammed El-Hajjar , Ibrahim Hemadeh , Arman Shojaeifard , Lajos Hanzo

Reconfigurable Intelligent Surface (RIS) is considered as an energy-efficient solution for future wireless communication networks due to its fast and low-cost configuration. In this letter, we consider the estimation of cascaded channels in…

信号处理 · 电气工程与系统科学 2022-10-25 Mengbing Liu , Xin Li , Boyu Ning , Chongwen Huang , Sumei Sun , Chau Yuen

Remote state estimation of large-scale distributed dynamic processes plays an important role in Industry 4.0 applications. In this paper, we focus on the transmission scheduling problem of a remote estimation system. First, we derive some…

信息论 · 计算机科学 2024-10-28 Jiazheng Chen , Wanchun Liu , Daniel E. Quevedo , Saeed R. Khosravirad , Yonghui Li , Branka Vucetic

Massive MIMO communication systems, by virtue of utilizing very large number of antennas, have a potential to yield higher spectral and energy efficiency in comparison with the conventional MIMO systems. In this paper, we consider uplink…

信息论 · 计算机科学 2015-07-30 Alam Zaib , Mudassir Masood , Anum Ali , Weiyu Xu , Tareq Y. Al-Naffouri

This paper considers the joint impact of non-linear hardware impairments at the base station (BS) and user equipments (UEs) on the uplink performance of single-cell massive MIMO (multiple-input multiple-output) in practical Rician fading…

信息论 · 计算机科学 2022-06-22 Özlem Tugfe Demir , Emil Björnson

In this paper, we consider channel estimation for intelligent reflecting surface (IRS)-assisted millimeter wave (mmWave) systems, where an IRS is deployed to assist the data transmission from the base station (BS) to a user. It is shown…

信号处理 · 电气工程与系统科学 2020-07-15 Peilan Wang , Jun Fang , Huiping Duan , Hongbin Li

Structural damage detection is essential for maintaining the safety and reliability of civil infrastructure. However, accurately identifying different types of structural damage from images remains challenging due to variations in damage…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Saif ur Rehman Khan , Imad Ahmed Waqar , Arooj Zaib , Saad Ahmed , Sebastian Vollmer , Andreas Dengel , Muhammad Nabeel Asim

To have a superior generalization, a deep learning neural network often involves a large size of training sample. With increase of hidden layers in order to increase learning ability, neural network has potential degradation in accuracy.…

机器学习 · 计算机科学 2019-01-01 Lianfa Li , Ying Fang , Jun Wu , Jinfeng Wang

A very deep convolutional neural network (CNN) has recently achieved great success for image super-resolution (SR) and offered hierarchical features as well. However, most deep CNN based SR models do not make full use of the hierarchical…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Yulun Zhang , Yapeng Tian , Yu Kong , Bineng Zhong , Yun Fu

This letter introduces a dual application of denoising diffusion probabilistic model (DDPM)-based channel estimation algorithm integrating data denoising and augmentation. Denoising addresses the severe noise in raw signals at pilot…

信号处理 · 电气工程与系统科学 2025-10-06 Yupeng Li , Ruhao Zhang , Yitong Liu , Chunju Shao , Jing Jin , Shijian Gao

Deep complex convolution recurrent network (DCCRN), which extends CRN with complex structure, has achieved superior performance in MOS evaluation in Interspeech 2020 deep noise suppression challenge (DNS2020). This paper further extends…

音频与语音处理 · 电气工程与系统科学 2021-06-17 Shubo Lv , Yanxin Hu , Shimin Zhang , Lei Xie

This paper considers the impact of general hardware impairments in a multiple-antenna base station and user equipments on the uplink performance. First, the effective channels are analytically derived for distortion-aware receivers when…

信号处理 · 电气工程与系统科学 2022-08-09 Özlem Tugfe Demir , Emil Björnson
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