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Full Duplex (FD) radio has emerged as a promising solution to increase the data rates by up to a factor of two via simultaneous transmission and reception in the same frequency band. This paper studies a novel hybrid beamforming (HYBF)…

信息论 · 计算机科学 2022-01-04 Chandan Kumar Sheemar , Christo Kurisummoottil Thomas , Dirk Slock

This letter investigates the reconfigurable intelligent surface (RIS)-assisted multiple-input single-output (MISO) wireless system, where both half-duplex (HD) and full-duplex (FD) operating modes are considered together, for the first time…

信号处理 · 电气工程与系统科学 2021-10-12 Alice Faisal , Ibrahim Al-Nahhal , Octavia A. Dobre , Telex M. N. Ngatched

The ever-growing volume and decentralized nature of data, coupled with the need to harness it and extract knowledge, have led to the extensive use of distributed deep learning (DDL) techniques for training. These techniques rely on local…

In the future commercial and military communication systems, anti-jamming remains a critical issue. Existing homogeneous or heterogeneous arrays with a limited degrees of freedom (DoF) and high consumption are unable to meet the…

信息论 · 计算机科学 2023-10-17 Kaizhi Huang , Wenyu Jiang , Yajun Chen , Liang Jin , Qingqing Wu , Xiaoling Hu

Learning robust representations across extremely heterogeneous modalities remains a fundamental challenge in multi-modal vision. As a critical and profound instantiation of this challenge, high-resolution (HR) joint optical and synthetic…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Bowen Peng , Yongxiang Liu , Jie Zhou , Xiaodong Chen , Tianpeng Liu , Xiaogang Yu , Li Liu

This paper introduces a novel framework aimed at designing integrated waveforms for robust integrated sensing and communication (ISAC) systems. The system model consists of a multiple-input multiple-output (MIMO) base station that…

信号处理 · 电气工程与系统科学 2025-10-16 Yousef Kloob , Mohammad Al-Jarrah , Emad Alsusa

Deep Learning (DL) based neural receiver models are used to jointly optimize PHY of baseline receiver for cellular vehicle to everything (C-V2X) system in next generation (6G) communication, however, there has been no exploration of how…

信号处理 · 电气工程与系统科学 2025-01-24 Osama Saleem , Mohammed Alfaqawi , Pierre Merdrignac , Abdelaziz Bensrhair , Soheyb Ribouh

Automatic modulation recognition (AMR) detects the modulation scheme of the received signals for further signal processing without needing prior information, and provides the essential function when such information is missing. Recent…

信号处理 · 电气工程与系统科学 2022-07-21 Fuxin Zhang , Chunbo Luo , Jialang Xu , Yang Luo , FuChun Zheng

Is there a way for a designer to evaluate the performance of a given hood frame geometry without spending significant time on simulation setup? This paper seeks to address this challenge by developing a multimodal machine-learning (MMML)…

机器学习 · 计算机科学 2025-09-16 Abhishek Indupally , Satchit Ramnath

Hybrid simulation (HS) is a widely used structural testing method that combines a computational substructure with a numerical model for well-understood components and an experimental substructure for other parts of the structure that are…

机器学习 · 计算机科学 2020-04-07 Elif Ecem Bas , Mohamed A. Moustafa , David Feil-Seifer , Janelle Blankenburg

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

This letter considers the transceiver design in frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems for high-quality data transmission. We propose a novel…

信号处理 · 电气工程与系统科学 2023-12-12 Junyi Yang , Weifeng Zhu , Shu Sun , Xiaofeng Li , Xingqin Lin , Meixia Tao

Scaling long-context capabilities is crucial for Multimodal Large Language Models (MLLMs). However, real-world multimodal datasets are extremely heterogeneous. Existing training frameworks predominantly rely on static parallelism…

分布式、并行与集群计算 · 计算机科学 2026-02-26 Yifan Niu , Han Xiao , Dongyi Liu , Wei Zhou , Jia Li

Deep Metric Learning (DML) models often require strong local and global representations, however, effective integration of local and global features in DML model training is a challenge. DML models are often trained with specific loss…

计算机视觉与模式识别 · 计算机科学 2021-12-30 Mohammad K. Ebrahimpour , Gang Qian , Allison Beach

Massive multiple-input multiple-output (mMIMO) downlink precoding offers high spectral efficiency but remains challenging to deploy in practice because near-optimal algorithms such as the weighted minimum mean squared error (WMMSE) are…

机器学习 · 计算机科学 2026-01-30 Ali Hasanzadeh Karkan , Ahmed Ibrahim , Jean-François Frigon , François Leduc-Primeau

One of the main challenges in high-speed mobile communications is the presence of large Doppler spreads. Thus, accurate estimation of maximum Doppler spread (MDS) plays an important role in improving the performance of the communication…

信号处理 · 电气工程与系统科学 2018-02-12 Mostafa Mohammadkarimi , Ebrahim Karami , Octavia A. Dobre , Moe Z. Win

Intelligent reflecting surface (IRS) technology has recently attracted a significant interest in non-light-of-sight radar remote sensing. Prior works have largely focused on designing single IRS beamformers for this problem. For the first…

信息论 · 计算机科学 2023-03-14 Zahra Esmaeilbeig , Arian Eamaz , Kumar Vijay Mishra , Mojtaba Soltanalian

The limited over-the-air (OTA) pilot symbols in multiple-input-multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) systems presents a major challenge for detecting transmitted data symbols at the receiver, especially for…

信号处理 · 电气工程与系统科学 2023-10-10 Jiarui Xu , Lianjun Li , Lizhong Zheng , Lingjia Liu

Eigen-decomposition-based direction finding methods of using large-scale/ultra-large-scale fully-digital receive antenna arrays lead to a high or ultra-high complexity. To address the complexity dilemma, in this paper, three low-complexity…

信号处理 · 电气工程与系统科学 2022-08-11 Yiwen Chen , Xichao Zhan , Feng Shu , Qijuan Jie , Xin Cheng , Zhihong Zhuang , Jiangzhou Wang

This paper proposes a momentum-constrained hybrid heuristic trajectory optimization framework (MHHTOF) tailored for assistive navigation in visually impaired scenarios, integrating trajectory sampling generation, optimization and evaluation…

机器人学 · 计算机科学 2025-12-08 Yuting Zeng , Zhiwen Zheng , You Zhou , JiaLing Xiao , Yongbin Yu , Manping Fan , Bo Gong , Liyong Ren