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In the field of spatial-spectral fusion, the model-based method and the deep learning (DL)-based method are state-of-the-art. This paper presents a fusion method that incorporates the deep neural network into the model-based method for the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Huanfeng Shen , Menghui Jiang , Jie Li , Qiangqiang Yuan , Yanchong Wei , Liangpei Zhang

The dense and distributed deployment of sub-THz radio units (RUs) alongside sub-10 GHz access point (AP) is a promising approach to provide high data rate and reliable coverage for future 6G applications. However, beam search or RU…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Nishant Gupta , Muris Sarajlic , Erik G. Larsson

We consider a robust beamforming problem where large amount of downlink (DL) channel state information (CSI) data available at a multiple antenna access point (AP) is used to improve the link quality to a user equipment (UE) for beyond-5G…

Information Theory · Computer Science 2023-08-15 Sai Subramanyam Thoota , Joao Vieira , Erik G. Larsson

In this work, we investigate the performance of a joint sensing and communication (JSC) network consisting of multiple base stations (BSs) that cooperate through a fusion center (FC) to exchange information about the sensed environment…

Signal Processing · Electrical Eng. & Systems 2023-11-01 Elia Favarelli , Elisabetta Matricardi , Lorenzo Pucci , Enrico Paolini , Wen Xu , Andrea Giorgetti

Unmanned aerial vehicle (UAV)-assisted communication becomes a promising technique to realize the beyond fifth generation (5G) wireless networks, due to the high mobility and maneuverability of UAVs which can adapt to heterogeneous…

Signal Processing · Electrical Eng. & Systems 2020-09-17 Chang Liu , Weijie Yuan , Zhiqiang Wei , Xuemeng Liu , Derrick Wing Kwan Ng

Multiple-input multiple-output (MIMO) is a key for the fifth generation (5G) and beyond wireless communication systems owing to higher spectrum efficiency, spatial gains, and energy efficiency. Reaping the benefits of MIMO transmission can…

Networking and Internet Architecture · Computer Science 2020-03-13 Hamza Khan , M. Majid Butt , Sumudu Samarakoon , Philippe Sehier , Mehdi Bennis

Local Climate Zones (LCZs) give a zoning map to study urban structures and land use and analyze the impact of urbanization on local climate. Multimodal remote sensing enables LCZ classification, for which data fusion is significant for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Ancymol Thomas , Jaya Sreevalsan-Nair

Guided ultrasonic wave localization uses spatially distributed multistatic sensor arrays and generalized beamforming strategies to detect and locate damage across a structure. The propagation channel is often very complex. Methods can…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Ishan D. Khurjekar , Joel B. Harley

Deep learning-based massive MIMO CSI feedback has received a lot of attention in recent years. Now, there exists a plethora of CSI feedback models mostly based on auto-encoders (AE) architecture with an encoder network at the user equipment…

Information Theory · Computer Science 2022-12-02 Sharan Mourya , SaiDhiraj Amuru , Kiran Kumar Kuchi

User equipment (UE) devices with high compute performance acting on data with dynamic and stochastic nature to train Artificial Intelligence/Machine Learning (AI/ML) models call for real-time, agile distributed machine learning (DL)…

Networking and Internet Architecture · Computer Science 2024-09-30 Saeedeh Parsaeefard , Sabine Roessel , Anousheh Gholami Ghavamabad , Robert Zaus , Bernhard Raaf

Data-driven approaches such as deep learning can result in predictive models for material properties with exceptional accuracy and efficiency. However, in many applications, data is sparse, severely limiting their accuracy and…

Machine Learning · Computer Science 2025-10-29 Robert J Appleton , Brian C Barnes , Alejandro Strachan

Despite advances in cellular network technology, base station (BS) load balancing remains a persistent problem. Although centralized resource allocation methods can address the load balancing problem, it still remains an NP-hard problem. In…

Networking and Internet Architecture · Computer Science 2024-03-15 Hsin Lin , Yi-Kang Su , Hong-Qi Chen , La-Fei Ko

Acquiring accurate channel state information (CSI) at an access point (AP) is challenging for wideband millimeter wave (mmWave) ultra-massive multiple-input and multiple-output (UMMIMO) systems, due to the high-dimensional channel matrices,…

Information Theory · Computer Science 2024-03-20 Kuiyu Wang , Zhen Gao , Sheng Chen , Boyu Ning , Gaojie Chen , Yu Su , Zhaocheng Wang , H. Vincent Poor

Multimodal deep learning harnesses diverse imaging modalities, such as MRI sequences, to enhance diagnostic accuracy in medical imaging. A key challenge is determining the optimal timing for integrating these modalities-specifically,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Valerio Guarrasi , Klara Mogensen , Sara Tassinari , Sara Qvarlander , Paolo Soda

Deep learning (DL), a branch of artificial intelligence (AI) techniques, has shown great promise in various disciplines such as image classification and segmentation, speech recognition, language translation, among others. This remarkable…

Signal Processing · Electrical Eng. & Systems 2022-09-07 Wonjun Kim , Yongjun Ahn , Jinhong Kim , Byonghyo Shim

In this study, we leveraged Channel State Information (CSI), commonly utilized in WLAN communication, as training data to develop and evaluate five distinct machine learning models for recognizing human postures: standing, sitting, and…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Tomoya Tanaka , Ayumu Yabuki , Mizuki Funakoshi , Ryo Yonemoto

Increased complexity and heterogeneity of emerging 5G and beyond 5G (B5G) wireless networks will require a paradigm shift from traditional resource allocation mechanisms. Deep learning (DL) is a powerful tool where a multi-layer neural…

Networking and Internet Architecture · Computer Science 2018-08-03 K. I. Ahmed , H. Tabassum , E. Hossain

Neural networks have been proposed recently for positioning and channel charting of user equipments (UEs) in wireless systems. Both of these approaches process channel state information (CSI) that is acquired at a multi-antenna base-station…

Machine Learning · Computer Science 2019-10-01 Eric Lei , Oscar Castañeda , Olav Tirkkonen , Tom Goldstein , Christoph Studer

Accurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output (MIMO) systems. Recently, deep learning (DL) has been introduced to enhance CSI feedback in massive MIMO…

Signal Processing · Electrical Eng. & Systems 2023-02-01 Han Xiao , Wenqiang Tian , Wendong Liu , Zhi Zhang , Zhihua Shi , Li Guo , Jia Shen

Accurate and timely channel state information (CSI) is fundamental for efficient link adaptation. However, challenges such as channel aging, user mobility, and feedback delays significantly impact the performance of adaptive modulation and…

Information Theory · Computer Science 2025-11-26 Francisco Díaz-Ruiz , Francisco J. Martín-Vega , Jose A. Cortés , Gerardo Gómez , Mari Carmen Aguayo
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