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Millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems typically employ hybrid mixed signal processing to avoid expensive hardware and high training overheads. {However, the lack of fully digital beamforming at…

Information Theory · Computer Science 2021-02-23 Asmaa Abdallah , Abdulkadir Celik , Mohammad M. Mansour , Ahmed M. Eltawil

Optimal transmission switching (OTS) improves optimal power flow (OPF) by selectively opening transmission lines, but its mixed-integer formulation increases computational complexity, especially on large grids. To address this, we propose a…

Systems and Control · Electrical Eng. & Systems 2026-03-05 Minsoo Kim , Matthew Brun , Andy Sun , Jip Kim

In this paper, we apply deep learning for communication over dispersive channels with power detection, as encountered in low-cost optical intensity modulation/direct detection (IM/DD) links. We consider an autoencoder based on the recently…

Information Theory · Computer Science 2019-10-03 Boris Karanov , Gabriele Liga , Vahid Aref , Domaniç Lavery , Polina Bayvel , Laurent Schmalen

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…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-17 Shubo Lv , Yanxin Hu , Shimin Zhang , Lei Xie

Hybrid analog-digital signal processing (HSP) is an enabling technology to harvest the potential of millimeter-wave (mmWave) massive-MIMO communications. In this paper, we present a general deep learning (DL) framework for efficient design…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Alireza Morsali , Afshin Haghighat , Benoit Champagne

Accurate downlink channel state information (CSI) is vital to achieving high spectrum efficiency in massive MIMO systems. Existing works on the deep learning (DL) model for CSI feedback have shown efficient compression and recovery in…

Information Theory · Computer Science 2022-05-10 Zhenyu Liu , Zhi Ding

While machine learning techniques are traditionally resource intensive, we are currently witnessing an increased interest in hardware and energy efficient approaches. This need for resource-efficient machine learning is primarily driven by…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-23 Lukas Pfeifenberger , Matthias Zöhrer , Günther Schindler , Wolfgang Roth , Holger Fröning , Franz Pernkopf

Recently, progressive learning has shown its capacity to improve speech quality and speech intelligibility when it is combined with deep neural network (DNN) and long short-term memory (LSTM) based monaural speech enhancement algorithms,…

Sound · Computer Science 2020-01-14 Andong Li , Minmin Yuan , Chengshi Zheng , Xiaodong Li

Efficient spectrum utilization is critical to meeting the growing data demands of modern wireless communication networks. Automatic Modulation Classification (AMC) plays a key role in enhancing spectrum efficiency by accurately identifying…

Machine Learning · Computer Science 2025-07-08 Prakash Suman , Yanzhen Qu

This paper introduces a novel precoder design aimed at reducing pilot overhead for effective channel estimation in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) applications utilizing high-order…

Signal Processing · Electrical Eng. & Systems 2025-04-30 Nilesh Kumar Jha , Huayan Guo , Vincent K. N. Lau

Although deep learning based models for underwater image enhancement have achieved good performance, they face limitations in both lightweight and effectiveness, which prevents their deployment and application on resource-constrained…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Fuheng Zhou , Dikai Wei , Ye Fan , Yulong Huang , Yonggang Zhang

Orthogonal Time Frequency Space (OTFS) modulation has recently attracted significant interest due to its potential for enabling reliable communication in high-mobility environments. However, the effectiveness of OTFS receivers relies on the…

Signal Processing · Electrical Eng. & Systems 2026-02-11 Xiaoqi Zhang , Zhitong Ni , Weijie Yuan , J. Andrew Zhang , Tony Q. S. Quek

Human motion recognition (HMR) based on wireless sensing is a low-cost technique for scene understanding. Current HMR systems adopt support vector machines (SVMs) and convolutional neural networks (CNNs) to classify radar signals. However,…

Information Theory · Computer Science 2021-04-22 Guoliang Li , Shuai Wang , Jie Li , Rui Wang , Xiaohui Peng , Tony Xiao Han

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…

Signal Processing · Electrical Eng. & Systems 2025-10-06 Yupeng Li , Ruhao Zhang , Yitong Liu , Chunju Shao , Jing Jin , Shijian Gao

Spiking neural networks (SNNs) have garnered interest due to their energy efficiency and superior effectiveness on neuromorphic chips compared with traditional artificial neural networks (ANNs). One of the mainstream approaches to…

Neural and Evolutionary Computing · Computer Science 2024-04-29 Zhipeng Huang , Jianhao Ding , Zhiyu Pan , Haoran Li , Ying Fang , Zhaofei Yu , Jian K. Liu

With the widespread deployment of fifth-generation (5G) wireless networks, research on sixth-generation (6G) technology is gaining momentum. Artificial Intelligence (AI) is anticipated to play a significant role in 6G, particularly through…

Information Theory · Computer Science 2025-05-26 Zhen Qiao , Jiang Xue , Junkai Zhang , Guanzhang Liu , Xiaoqin Ma , Runhua Li , Faheem A. Khan , John S. Thompson , Zongben Xu

This paper aims to predict radio channel variations over time by deep learning from channel observations without knowledge of the underlying channel dynamics. In next-generation wideband cellular systems, multicarrier transmission for…

Information Theory · Computer Science 2022-03-14 Heunchul Lee , Jaeseong Jeong , Zhao Wang

Owing to the complicated characteristics of 5G communication system, designing RF components through mathematical modeling becomes a challenging obstacle. Moreover, such mathematical models need numerous manual adjustments for various…

Signal Processing · Electrical Eng. & Systems 2021-06-16 Po-Yu Chen , Hao Chen , Yi-Min Tsai , Hsien-Kai Kuo , Hantao Huang , Hsin-Hung Chen , Sheng-Hong Yan , Wei-Lun Ou , Chia-Ming Cheng

In contrast to the classical cyclic prefix (CP)-OFDM, the time domain synchronous (TDS)-OFDM employs a known pseudo noise (PN) sequence as guard interval (GI). Conventional channel estimation methods for TDS-OFDM are based on the…

Networking and Internet Architecture · Computer Science 2012-01-04 Ming Liu , Matthieu Crussière , Jean-François Hélard

Massive MIMO is a promising technique for future 5G communications due to its high spectrum and energy efficiency. To realize its potential performance gain, accurate channel estimation is essential. However, due to massive number of…

Information Theory · Computer Science 2016-11-17 Zhen Gao , Linglong Dai , Wei Dai , Byonghyo Shim , Zhaocheng Wang