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This paper proposes a model-driven deep learning-based downlink channel reconstruction scheme for frequency division duplexing (FDD) massive multi-input multi-output (MIMO) systems. The spatial non-stationarity, which is the key feature of…

Information Theory · Computer Science 2020-02-25 Yu Han , Mengyuan Li , Shi Jin , Chao-Kai Wen , Xiaoli Ma

To deploy machine learning-based algorithms for real-time applications with strict latency constraints, we consider an edge-computing setting where a subset of inputs are offloaded to the edge for processing by an accurate but…

Machine Learning · Computer Science 2020-11-09 Ayan Chakrabarti , Roch Guérin , Chenyang Lu , Jiangnan Liu

In this correspondence, we investigate networked sensing in perceptive mobile networks under a bistatic multi-transmitter single-receiver uplink topology, where multiple user equipments (UEs) transmit signals over orthogonal…

Signal Processing · Electrical Eng. & Systems 2026-03-18 Jingying Bao , J. Andrew Zhang , Kai Wu , Christos Masouros , Y. Jay Guo

In massive multiple-input multiple-output (MIMO) systems, the large number of antennas would bring a great challenge for the acquisition of the accurate channel state information, especially in the frequency division duplex mode. To…

Signal Processing · Electrical Eng. & Systems 2020-09-04 Yindi Yang , Shun Zhang , Feifei Gao , Chao Xu , Jianpeng Ma , Octavia A. Dobre

Non-Orthogonal Multiple Access (NOMA) is at the heart of a paradigm shift towards non-orthogonal communication due to its potential to scale well in massive deployments. Nevertheless, the overhead of channel estimation remains a key…

Information Theory · Computer Science 2023-06-12 Hebatalla Issa , Mohammad Shehab , Hirley Alves

Meeting real-time constraints for high-performance Approximate Nearest Neighbor (ANN) search remains a critical challenge in remote sensing edge devices, which are essentially fusion systems like micro-satellites and UAVs, largely due to…

Computational Geometry · Computer Science 2025-11-24 Xianwei Lv , Debin Tang , Zhecheng Shi , Wang Wang , Yujiao Zheng , Xiatian Zhu

The approximate nearest neighbor problem ($\epsilon$-ANN) in high dimensional Euclidean space has been mainly addressed by Locality Sensitive Hashing (LSH), which has polynomial dependence in the dimension, sublinear query time, but…

Computational Geometry · Computer Science 2016-12-06 Evangelos Anagnostopoulos , Ioannis Z. Emiris , Ioannis Psarros

Network embedding represents nodes in a continuous vector space and preserves structure information from the Network. Existing methods usually adopt a "one-size-fits-all" approach when concerning multi-scale structure information, such as…

Machine Learning · Computer Science 2018-03-28 Lei Sang , Min Xu , Shengsheng Qian , Xindong Wu

Convolutional Neural Networks (CNNs) achieve remarkable accuracy in vision tasks, yet their computational complexity challenges low-power edge deployment. In this work, we present COMET, a framework of CNN models that employ efficient…

Signal Processing · Electrical Eng. & Systems 2026-04-09 Boyang Chen , Mohd Tasleem Khan , George Goussetis , Mathini Sellathurai , Yuan Ding , João F. C. Mota , Jongeun Lee

We present an object detection framework based on PaddlePaddle. We put all the strategies together (multi-scale training, FPN, Cascade, Dcnv2, Non-local, libra loss) based on ResNet200-vd backbone. Our model score on public leaderboard…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Ruoyu Guo , Cheng Cui , Yuning Du , Xianglong Meng , Xiaodi Wang , Jingwei Liu , Jianfeng Zhu , Yuan Feng , Shumin Han

Few-shot learning in remote sensing remains challenging due to three factors: the scarcity of labeled data, substantial domain shifts, and the multi-scale nature of geospatial objects. To address these issues, we introduce Adaptive…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Anurag Kaushish , Ayan Sar , Sampurna Roy , Sudeshna Chakraborty , Prashant Trivedi , Tanupriya Choudhury , Kanav Gupta

Continual learning (CL) has been a critical topic in contemporary deep neural network applications, where higher levels of both forward and backward transfer are desirable for an effective CL performance. Existing CL strategies primarily…

Machine Learning · Computer Science 2026-01-15 Yanru Wu , Jianning Wang , Xiangyu Chen , Enming Zhang , Yang Tan , Hanbing Liu , Yang Li

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…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Kangda Zhi , Tianyu Yang , Songyan Xue , Giuseppe Caire

Future wireless systems are expected to employ extremely large-scale multiple-input multiple-output (XL-MIMO) arrays at high carrier frequencies, where near-field propagation makes the channel depend jointly on angle and distance. The…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Maral Safari , Italo Atzeni

Twenty-three machine learning algorithms were trained then scored to establish baseline comparison metrics and to select an image classification algorithm worthy of embedding into mission-critical satellite imaging systems. The…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Erik Larsen , David Noever , Korey MacVittie , John Lilly

In this work, we reimagine classical probing to evaluate knowledge transfer from simple source to more complex target tasks. Instead of probing frozen representations from a complex source task on diverse simple target probing tasks (as…

Training recommendation models pose significant challenges regarding resource utilization and performance. Prior research has proposed an approach that categorizes embeddings into popular and non-popular classes to reduce the training time…

Information Retrieval · Computer Science 2024-04-09 Yassaman Ebrahimzadeh Maboud , Muhammad Adnan , Divya Mahajan , Prashant J. Nair

The present paper deals with an OFDM-based uplink within a multi-user MIMO (MU-MIMO) system where a massive MIMO approach is employed. In this context, the linear detectors Minimum Mean-Squared Error (MMSE), Zero Forcing (ZF) and Maximum…

IoT devices have limited hardware capabilities and are often deployed in remote areas. Consequently, advanced vision models surpass such devices' processing and storage capabilities, requiring offloading of such tasks to the cloud. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Ali Hojjat , Janek Haberer , Tayyaba Zainab , Olaf Landsiedel

We consider a multi-cell frequency-selective fading uplink channel (network MIMO) from K single-antenna user terminals (UTs) to B cooperative base stations (BSs) with M antennas each. The BSs, assumed to be oblivious of the applied…

Information Theory · Computer Science 2015-05-27 Jakob Hoydis , Mari Kobayashi , Merouane Debbah