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Deep learning (DL) based channel estimation (CE) and multiple input and multiple output detection (MIMODet), as two separate research topics, have provided convinced evidence to demonstrate the effectiveness and robustness of artificial…

信号处理 · 电气工程与系统科学 2024-01-30 Xiangzhao Qin , Sha Hu , Jiankun Zhang , Jing Qian , Hao Wang

Extremely large-scale massive MIMO (XL-MIMO) has been reviewed as a promising technology for future wireless communications. The deployment of XL-MIMO, especially at high-frequency bands, leads to users being located in the near-field…

信息论 · 计算机科学 2022-11-29 Xiangyu Zhang , Zening Wang , Haiyang Zhang , Luxi Yang

In this paper, we propose an encoder-decoder neural architecture (called Channelformer) to achieve improved channel estimation for orthogonal frequency-division multiplexing (OFDM) waveforms in downlink scenarios. The self-attention…

信号处理 · 电气工程与系统科学 2023-02-10 Dianxin Luan , John Thompson

Large language models (LLMs) have significantly advanced generative applications in natural language processing (NLP). Recent trends in model architectures revolve around efficient variants of transformers or state-space/gated-recurrent…

Despite the recent progress in speech emotion recognition (SER), state-of-the-art systems are unable to achieve improved performance in cross-language settings. In this paper, we propose a Multimodal Dual Attention Transformer (MDAT) model…

计算与语言 · 计算机科学 2023-07-17 Syed Aun Muhammad Zaidi , Siddique Latif , Junaid Qadir

To reap the promising benefits of massive multiple-input multiple-output (MIMO) systems, accurate channel state information (CSI) is required through channel estimation. However, due to the complicated wireless propagation environment and…

信号处理 · 电气工程与系统科学 2024-11-04 Binggui Zhou , Xi Yang , Shaodan Ma , Feifei Gao , Guanghua Yang

Accelerated multi-modal magnetic resonance (MR) imaging is a new and effective solution for fast MR imaging, providing superior performance in restoring the target modality from its undersampled counterpart with guidance from an auxiliary…

图像与视频处理 · 电气工程与系统科学 2022-05-12 Chun-Mei Feng , Yunlu Yan , Geng Chen , Yong Xu , Ling Shao , Huazhu Fu

Visual object tracking often employs a multi-stage pipeline of feature extraction, target information integration, and bounding box estimation. To simplify this pipeline and unify the process of feature extraction and target information…

计算机视觉与模式识别 · 计算机科学 2023-02-10 Yutao Cui , Cheng Jiang , Gangshan Wu , Limin Wang

This paper investigates the design of channel estimation and 3D localization algorithms in a challenging scenario, where a sub-connected planar extremely large-scale multiple-input multiple-output (XL-MIMO) communicates with multi-antenna…

信号处理 · 电气工程与系统科学 2025-10-24 Kangda Zhi , Tianyu Yang , Songyan Xue , Giuseppe Caire

Graph representation learning has rapidly emerged as a pivotal field of study. Despite its growing popularity, the majority of research has been confined to embedding single-layer graphs, which fall short in representing complex systems…

机器学习 · 计算机科学 2024-03-29 Marco Bongiovanni , Luca Gallo , Roberto Grasso , Alfredo Pulvirenti

Transformer-based language models utilize the attention mechanism for substantial performance improvements in almost all natural language processing (NLP) tasks. Similar attention structures are also extensively studied in several other…

计算与语言 · 计算机科学 2023-05-17 Nurullah Sevim , Ege Ozan Özyedek , Furkan Şahinuç , Aykut Koç

Millimeter wave (mmWave) multiple-input-multi-output (MIMO) is now a reality with great potential for further improvement. We study full-duplex transmissions as an effective way to improve mmWave MIMO systems. Compared to half-duplex…

信息论 · 计算机科学 2025-01-31 Mehdi Sattari , Hao Guo , Deniz Gündüz , Ashkan Panahi , Tommy Svensson

We present the Multi-Scale Spatial Channel Attention Network (MS-SCANet), a transformer-based architecture designed for no-reference image quality assessment (IQA). MS-SCANet features a dual-branch structure that processes images at…

图像与视频处理 · 电气工程与系统科学 2026-02-05 Mayesha Maliha R. Mithila , Mylene C. Q. Farias

We study the design of receivers in extra-large scale MIMO (XL-MIMO) systems, i.e. systems in which the base station is equipped with an antenna array of extremely large dimensions. While XL-MIMO can significantly increase the system's…

信号处理 · 电气工程与系统科学 2020-07-15 Abolfazl Amiri , Sajad Rezaie , Carles Navarro Manchon , Elisabeth de Carvalho

We propose a decentralized receiver for extra-large multiple-input multiple-output (XL-MIMO) arrays. Our method operates with no central processing unit (CPU) and all the signal detection tasks are done in distributed nodes. We exploit a…

信号处理 · 电气工程与系统科学 2021-03-12 Abolfazl Amiri , Carles Navarro Manch'on , Elisabeth de Carvalho

Transformer architecture has emerged to be successful in a number of natural language processing tasks. However, its applications to medical vision remain largely unexplored. In this study, we present UTNet, a simple yet powerful hybrid…

计算机视觉与模式识别 · 计算机科学 2021-09-29 Yunhe Gao , Mu Zhou , Dimitris Metaxas

Extremely large-scale multiple-input-multiple-output (XL-MIMO) at millimeter-wave (mmWave) and terahertz (THz) bands plays an important role in supporting extreme high beamforming gain as well as ultra-wideband spectrum resources.…

信息论 · 计算机科学 2022-12-19 Mingyao Cui , Linglong Dai

Mid-band extra-large-scale multiple-input multiple-output (XL-MIMO), emerging as a critical enabler for future communication systems, is expected to deliver significantly higher throughput by leveraging the extended bandwidth and enlarged…

信号处理 · 电气工程与系统科学 2025-12-16 Jiachen Tian , Yu Han , Xiao Li , Shi Jin , Chao-Kai Wen

Recently, the Transformer machine translation system has shown strong results by stacking attention layers on both the source and target-language sides. But the inference of this model is slow due to the heavy use of dot-product attention…

计算与语言 · 计算机科学 2019-06-27 Tong Xiao , Yinqiao Li , Jingbo Zhu , Zhengtao Yu , Tongran Liu

Future wireless multiple-input multiple-output (MIMO) systems will integrate both sub-6 GHz and millimeter wave (mmWave) frequency bands to meet the growing demands for high data rates. MIMO link establishment typically requires accurate…

信号处理 · 电气工程与系统科学 2025-10-16 Faruk Pasic , Lukas Eller , Stefan Schwarz , Markus Rupp , Christoph F. Mecklenbräuker